GPS antenna 256-Color TFT display with backlighting Detachable GPS antenna collapses for storage. Be sure the antenna is up (as shown here) to receive satellite signals. See the Appendix, page121, for instructions on removing the antenna. External power connector under weather cap Headphone/stereo jack under weather cap GPSMAP 376C Owners Manual Backlit keypad for easy nighttime operation Slot for optional data card Serial number USB/GXM 30 antenna connector under weather cap Battery pack. Press tab down to remove battery pack for replacement, if necessary.
Getting Started > Charging the GPSMAP 376C

Charging the GPSMAP 376C

Before using the GPSMAP 376C, you might need to charge the battery. Plug the power cable into an external power source to charge. You can use the unit while it is charging. To charge the units battery:
1. Lift the rubber weather cap to expose the power connector on the back of the unit. See the image on page 1 for connector location. 2. Align the notches and push the plug into the connector until fully seated. 3. Plug the 12-Volt adapter into an available AC outlet, or cigarette lighter receptacle if you have a cigarette lighter adapter. Use care when routing the cable; make sure it does not interfere with vehicle operation. The unit begins charging as soon as external power is applied. TIP: Placing the unit in Charge Mode charges the unit more quickly than when the unit is turned on and reduces draw on the vehicle/vessel battery.

Using Charge Mode

If you want to charge the battery when you are not using the unit, you can put the unit into Charge Mode. To put the GPSMAP 376C in charge mode:
1. Connect the GPSMAP 376C to an external power supply. 2. Press and hold the POWER key. Instead of completely turning off, the GPSMAP 376C goes into Charge Mode.
When you turn on the GPSMAP 376C the power source indicator on the GPS tab shows the unit is operating off battery power ( ), that the unit is charging ( ), or that an external power source is in use ( ).

NAV/MOB Key

Press to show the Navigate Menu. In Marine Mode, press and hold to start the MOB function. In Automotive Mode, press and hold to show the Next Turn page and announce the next turn when using the external speaker.

FIND Key

Press to quickly search for and access user waypoints, cities, and other items used for navigation.
Getting Started > Using the GPSMAP 376C

Using the GPSMAP 376C

The advanced keypad system on the GPSMAP 376C is designed to allow you to select options and enter data quickly and conveniently. As you progress through this owners manual, you are directed to press a specific key or highlight a field on the screen. When you are directed to press a key, you should press and quickly release the key. If the key needs to be held down for a period of time to start a secondary function, the instructions tell you to do so. When a field is selected on the screen, it is highlighted in yellow. The following terms are used throughout this manual: Highlightmove the highlighted area on the screen up, down, left, or right with the ROCKER to select individual fields. Moving the highlight to a given location allows you to make a selection, begin data entry, or scroll through a list. Fieldthe location on a page where data or an option can be shown and entered. Select (highlight) a field using the ROCKER to begin entering data or selecting options. On-screen buttonuse the ROCKER to highlight a button and press Enter to select the button. Scroll barwhen viewing a list of items too long to appear on the screen, a scroll bar appears along the right side of the list. To scroll through a list, press up or down on the ROCKER.
Defaultthe factory setting saved in the units memory. You can change the settings, but you can also revert to the factory (default) settings when you select Restore Defaults.

Highlighted field

On-screen buttons

Cartography

The GPSMAP 376C has a built-in worldwide database. The unit shows cartography as long as chart information is available for the zoom scale you selected. Optional preloaded Garmin data cards and MapSource CD-ROMs enhance the versatility of your GPSMAP 376C. With optional MapSource BlueChart information and BlueChart g2 you can view information that is not already preloaded. See the Garmin Web site at www.garmin.com/cartography/ for compatible MapSource products.
Selecting Options and Entering Data
To enter data and select options use the ROCKER to highlight, select, or choose an item in a list or a field on the screen. Use the Enter key and the ROCKER to select options, enter names and numbers in data fields, and activate your selections. To select an optional feature:
1. From any page, press Menu. An options menu shows a list of optional features specific to that page.

To find an item from another location:
To find an item near another item:
1. Press Find. The Find Menu appears. 2. Highlight the item you want to find from. 3. Press Find. The Find Menu opens again with items near the previously selected item. Search for the item you want.
Viewing Recently Found Items
The Recently Found Page shows a list of the items you have searched for or gone to recently.
1. Press Find to open the Find Menu. 2. Highlight Recently Found, and press Enter to open the list of recently found items. 3. Press MENU to open the options menu. 4. Select Show Find History to view the list of items you have searched for recently. OR Select Show Go To History to view the list of items for which you have recently created a Go To (Go To History). 5. Highlight Remove Point, and press ENTER to delete the selected recently found point.
To view a list of recently found items:

Find From Options Menu

4. Highlight Near Other, and press Enter. If you are actively following a route, you can also choose one of the other options listed in the Find From list. 5. Select a reference location on the map, and press Enter. The list shows items nearest to the new map location.
Viewing the Information Page
Each item on the map and each item listed in the results list has an Information Page. To view details about an item:
1. Highlight a point on the map or in the search results list, and press Enter. An Information Page appears with details about the item, in a tabbed format. Depending on the item selected, and if you are using optional BlueChart data cards, additional information is available for viewing the item on the map, viewing a tide chart, viewing the list of maps on your data card, and viewing the next item in the search results list.

Find Menu Options

To view additional Find Menu options, press Find, and then press Menu. The following options are available: Enable Auto Arrangeautomatically arranges the Find Menu. When selected, Disable Auto Arrange and Restore Default options are available. Near Otherselect a new location from which to compile the Find items lists. Using the ROCKER, move the map arrow to the location you want, and press Enter. Map Informationshows information about the detailed map data stored on the data card and allows you to select which maps appear on the Map Page. Additional selections are available on the options menu when you are navigating: Near Nextcompiles the Find items lists based on the next turn in the route. Near Destinationcompiles the Find items lists based on the route destination. Near Current Routecompiles the Find items lists based on the active route.

Marine Mode > Creating and Using Waypoints
Manually Transitioning to the Next Waypoint
From the Route tab option menu, highlight Set Up Routes, and press Enter to set the route leg transition (or waypoint transition). Select Distance to enter a radius so that when you are within the entered distance, the GPSMAP 376C leads you to the next point on your route. When you select Manual, you can transition to the next waypoint anytime while navigating a route. While you are navigating the route, open the Active Route Page, and press Menu. Highlight Next Route Waypoint, and press Enter to have the GPSMAP376C start routing you to the next point in your route.
Creating and Using Waypoints
Waypoints are locations or landmarks you record and store in your GPS. They are locations you might want to return to later, such as checkpoints on a route or significant ground features. You can add waypoints to routes and even create a Go To directly to the selected waypoint. The GPSMAP 376C stores up to 3,000 alphanumeric waypoints with a user-defined icon, comment, elevation, depth, and temperature available for each waypoint. Waypoints can be created using three basic methods: Enter/Markallows you to quickly mark your present location. Graphicallyallows you to define a new waypoint location from the map display using the ROCKER. Text Entryallows you to enter a new waypoints location coordinates manually.
Marking Your Present Location
Use the Enter/Mark key to capture your present location to create a new waypoint. You must have a valid position (2D or 3D) fix to mark your present location. To mark your present location:
1. Press and hold the Enter/Mark key until the New Waypoint Page opens, then release it. A default four-digit name and symbol are assigned to the new waypoint.
Creating Waypoints Using the Map
You can quickly create a waypoint using the Map Page. When you pan the map and move the arrow over a map item, you see a highlighted description of that item. The GPSMAP 376C uses the map item text shown on the map as the default name and symbol for the new waypoint.

Use the Trip Computer Page to view your trip data. You can track your speed here, as well as other information related to your trip. Whenever you have initiated a turn-by-turn route with the GPSMAP376C set in Automotive Mode, the Current Route Page shows each turn of the active route. For more information see page65.
Track Your Progress with the Map Page
You can track the progress of your route on the Map Page. Your route is shown with a magenta line. The next turn is shown in the top bar on the Map Page.
See Your Next Turn With the Current Route Page
Map Page Displaying Your Route

Current Route Page

Automotive Mode Pages > Map Page
Automotive Mode has two main pages (Map and Trip Computer), that are always available. The Optional Highway Page, Compass Page, and XM Page can be turned on in Automotive Mode. When you are actively navigating, the Current Route Page is available if you are navigating a turn-by-turn route. The Active Route Page is available if you are navigating off-road. For information about pages not discussed here, see the Marine Mode Pages section.
Current location Map Page

Map scale

In Automotive Mode, by default, four user-selectable data fields appear on the right side of the screen that can be configured to show any one of the possible data options. The top of the screen shows the GPS status or the route leg. You can also add data fields to the page or select a full-screen map without data fields.
Press the zoom keys (In and Out) to change the map scale. Some items on the map appear only if the map is zoomed in to a certain level. Press Enter to quickly declutter (remove unwanted items) from the Map Page. Press Menu to open the options menu for the Map Page. Show and hide the heading line from the options menu. Use the ROCKER to measure the distance between two objects on the map. Change the page layout and data fields to customize the Map Page.
Automotive Mode Pages > Current Route Page

Subscription package Available weather products Signal strength indicator Information Sub Tab Age of weather report (in minutes)
Artist name Song title Channel number Channel name

Main MenuXM Tab

Audio Sub Tab
The Audio sub tab shows XM Radio channel categories, a list of available channels, information about the selected channel, and the strength of the XM signal.
GPSMAP 376C Owners Manual 69
Main Menu > Route Tab and Points Tab

Route Tab

The Route tab shows all the routes currently stored in memory, along with a descriptive name for each route. Use the Route tab to create and store up to 50 reversible routes, with up to 300 points each. See the Creating and Using Routes section beginning on page 20 for more information about routes.
The Points tab contains two sub tabs, User and Proximity, which allow you to manage a large number of waypoints quickly and efficiently. For more information about waypoints, see the Creating and Using Waypoints section beginning on page 24.
Main MenuPoints Tab Main MenuRoute Tab

User Sub Tab

The User sub tab shows a master list of all waypoints currently stored in memory. The total number of stored and available waypoints appears at the bottom of the User sub tab.

Proximity Sub Tab

Use the Proximity sub tab to define an alarm circle around a stored waypoint location.
Main Menu > Track Tab and DSC Tab

Track Tab

Use the Track tab to specify whether or not to record a track log, define how it is recorded, or save the track log data for future use. The Track tab is divided into two sub tabs: Active and Saved. For more information about tracks, see the Managing Your Tracks section beginning on page 34.

DSC Tab

Use the DSC tab (Marine Mode only) to control and set up the Digital Selective Calling (DSC) features. DSC uses marine VHF radio and GPS to transmit and receive location information. DSC is used by mariners for distress calls and position reporting. For more information about DSC and Maritime Mobile Service Identity (MMSI) numbers, see page 127 in the Appendix.

Main MenuTrack Tab

Active Sub Tab

DSC Page

The Active sub tab is for the active log (the log currently being recorded). It shows the amount of track memory used and current settings.

Saved Sub Tab

The Saved sub tab shows a list of all saved tracks in your GPSMAP376C.
GPSMAP 376C Owners Manual 71

Main Menu > DSC Tab

Understanding Distress Calls

To set an alarm:

Arrivalsets an alarm to sound when you are a specified distance or time away from a destination waypoint. Select Auto for the unit to provide an Arrival alarm at its discretion. Off Coursesets an alarm to sound when off course. Select On, then enter a distance. Anchor Dragsets an alarm to sound when you exceed a specified drift distance. Select On, and then enter a distance.
When you set an alarm to be persistent, the alarm message appears on the screen and the GPSMAP 376C beeps until you press Enter to acknowledge the alarm.
76 GPSMAP 376C Owners Manual

System Alarms

Clocksets an alarm based on the units clock. Select On, and then enter a specific time that you want the alarm to sound. The GPSMAP 376C must be on for the clock alarm to work. Ext. (External) Voltagesets an alarm to sound when the external voltage drops below a specified amount. Select On, and then enter a specific voltage. DGPSsets an alarm to sound when the GPSMAP 376C loses a differential fix. Accuracysets an alarm to sound when GPS accuracy falls outside of the user-set value. Select On, and then specify a distance.

Weather Alarms

Tornado Warningssets an alarm to sound when you enter an area where a tornado warning is in effect. Thunderstorm Warningssets an alarm to sound when you enter an area where a severe thunderstorm warning is in effect. Flood Warningssets an alarm to sound when you enter an area where a flood warning is in effect. Flash Flood Warningssets an alarm to sound when you enter an area where a flash flood warning is in effect. Marine Warningssets an alarm to sound when you enter an area where a marine warning is in effect.
Main Menu > Calendar Tab

Sonar Alarms

Shallow Water/Deep Watersets an alarm to sound when you enter an area of water that is too shallow or deep. Select On, and then specify a depth. You must be receiving sonar NMEA data for this function to work. Water Tempsets an alarm to indicate if the water temperature has exceeded or dropped below a specific temperature, or fallen outside/ inside a specific temperature range. Select Above or Below and then enter a specific temperature, or select Inside or Outside and enter a range of temperatures. You must be receiving sonar NMEA data for this function to work. Driftsets an alarm to sound when you exceeded a specified drift distance. Select On, and then enter a specific distance. Fishsets an alarm to sound when fish are detected with sonar.

To use the current date again, highlight the Date field. Press Menu, highlight Use Current Date, and press Enter. To view hunt and fish information for a different location:

Message Tab

1. Highlight the From field, and press Enter. 2. Highlight Use Find Menu, and press Enter. The Find Menu opens. 3. Select a point, and press Enter. 4. On the information page, press Enter. The unit shows Hunt & Fish information for the selected location.
The Message tab shows a list of messages generated by the GPSMAP 376C. Use the ROCKER to scroll through the list of messages on the Log sub tab. Use the Log Filter sub tab to show only the message types that you want to view.
To use the current location:
1. Highlight the From field, and press Enter. 2. Highlight Current Location, and press Enter.

Main MenuMessage Tab

To view messages:
1. Highlight the Message tab on the Main Menu. 2. Highlight a message. 3. Press Enter to view detailed information about the message.
GPSMAP 376C Owners Manual83
Main Menu > Display Tab
To show or hide messages using the log filter:
1. Highlight the Message tab on the Main Menu. 2. Highlight the Log Filter sub tab. All messages appear by default.

Display Tab

Use the Display tab to set display features, such as pages to show in the main page sequence and how long the backlight stays on.

Message Log Filter Tab

Main MenuDisplay Tab
3. Highlight the message type you want to hide, and press Enter. The message name appears in the Hide window. 4. Highlight the message, and press Enter to show it again.
Main Menuindicates whether the Main Menu tabs contain text and icons (default) or text tabs only. Color Modesets the display to Day, Night, or Auto color mode. Select Auto to automatically switch from day to night at sunset and change back at sunrise. Backlight Timeoutsets the backlight to stay on when it is turned on, or to time out after a selected period of time has elapsed when using the battery. The backlight stays on regardless of this setting when external power is used.

Main Menu > Sound Tab

Twilight Adjustmentallows the unit to adjust the backlight for optimum viewing during twilight times. Highway Pageindicates whether the Highway Page appears in the main page sequence. XM Audio Pageindicates whether the XM Audio Page appears in the main page sequence. Compass Pageindicates whether the Compass Page appears in the main page sequence. Backlight Intensityturns the backlight up or down. Press right on the ROCKER to increase the intensity or left to decrease.

Sound Tab

Use the Sound tab to customize the sounds made by your GPSMAP376C.

Main MenuSound Tab

Beepersets the beeper to chime during key presses and alarms (Key and Alarm) or on Alarms Only. Attention Toneturns on and off the attention tone that sounds before the vocal prompts. Voice Promptsets the vocal prompt to operate for Guidance and Status, Route Guidance Only, or No Voice Prompts. Voice Languagesets the language for vocal prompts. Speaker Volumesets the external speaker or headphone volume.

GPSMAP 376C Owners Manual87

Guidance Sub Tab

Use the Guidance sub tab to set guidance information. To access the Guidance sub tab
1. Highlight the Setup tab from the Main Menu. 2. Select the Guidance sub tab.

Timers Sub Tab

Use the Timers sub tab to set timers and view information about how long the unit has been on. To access the Timers sub tab
1. Highlight the Setup tab from the Main Menu. 2. Select the Timers sub tab.
Off-Route Recalculationallows you to set whether the unit prompts you when it is recalculating your route (Prompted), or recalculates automatically. Set whether the unit announces the recalculation (Automatic - Announced) or recalculates silently (Automatic - Silent). You can turn the off-route recalculation Off. Next Turn Pop-upturns the Next Turn pop-up window Off, or opens the window when you press Nav (Held Nav Key Only), opens automatically (Automatically Only), or Both.
Userallows you to set the timer to Count Up or Count Down. You can also Reset the timer and turn it Off. Enter a time to use when counting up or down. Marineappears on the Compass Page in Marine Mode. Since Midnightshows the time the unit was turned on since midnight. To reset, select All Unit Defaults on the System sub tab.

Time Sub Tab

Use the Time sub tab to set the time format and zone, and set the unit to conform to Daylight Saving Time. The current time and date appear in the Current Time and Date field. To access the Time sub tab
1. Highlight the Setup tab on the Main Menu. 2. Select the Time sub tab.

Units Sub Tab

Use the Units sub tab to customize measurement units. To access the Units sub tab
1. Highlight the Setup tab on the Main Menu. 2. Select the Units sub tab.
Distance and Speedselects the unit of measure to show your speed and distance traveled. Direction Displayselects the unit of measure to show your direction. Mils is a unit of angle measurement used in military settings, in which 17.78 mils equal one degree. Temperatureselects the unit of measure to show the temperature. Elevationselects the unit of measure to show your altitude. Depthselects the unit of measure to show the depth. Vertical Speedselects the unit of measure to show the vertical speed.
Time Zonechoose the time zone for your city so the GPSMAP376C shows the correct local time. Select Other to enter a UTC Offset. If the wrong date appears, press Menu, highlight Set Date, and press Enter. You are prompted to enter the current year. The GPSMAP 376C uses this information when gathering satellite data to show the correct date.

Welcome Sub Tab

Use the Welcome sub tab to enter information, such as your name and address, or a welcome message that appears when you turn on your GPSMAP 376C. To access the Welcome sub tab:
1. Highlight the Setup tab on the Main Menu. 2. Select the Welcome sub tab.
3. To show the welcome message when you turn on your GPSMAP 376C, highlight the Show at Power-up check box, and press Enter to select it. To hide the welcome information at start-up, clear the check mark.

Interface Sub Tab

Use the Interface sub tab to change the data format and control the input/output format used when connecting your unit to external devices.
1. Select the Setup tab on the Main Menu. 2. Select the Interface sub tab.
To access the Interface sub tab:
1. Highlight one of the Welcome Message fields, and press ENTER. 2. Use the ROCKER to enter information in the fields. You do not need to enter information in every field. When finished, press ENTER again.
To add a welcome message:
GPSMAP 376C Owners Manual91
Serial Data Formatsets the data format to one of the following: Garmin Data Transferprovides the proprietary format used to exchange data with a computer or another Garmin unit. Garmin Data Transfer is disabled when the USB is connected, and the unit automatically switches to USB format. When the USB is disconnected, the USB field changes to Transfer Mode. GARMIN DGPSconnects the GPSMAP 376C with a Garmin DGPS beacon receiver. Garmin Remote Sonarconnects the GPSMAP 376C with a GSD 20 or GSD 21 Sounder Module and transducer. NMEA In/NMEA Outsupports the input/output of standard NMEA 0183 version 3.01 data and sonar NMEA input support for the DBT, DSE, DPT, MTW, and VHW sentences. RTCM Inallows DGPS input using a standard RTCM format. RTCM In/NMEA Outallows DGPS input using a standard RTCM format and also provides NMEA 0183 version 3.01 output. RTCM In/Text Outallows Differential GPS (DGPS) input using a standard RTCM format and also outputs simple text data that includes, data, time, location, and velocity.
Text Outallows the unit to output simple text data that includes, data, time, location, and velocity. The Baud can be set to 1200, 2400, 4800, or 9600. Noneprovides no interfacing capabilities. If you select GARMIN DGPS or RTCM In/NMEA Out format, you can control a differential beacon receiver directly from your GPSMAP 376C using the Interface sub tab. You can have the unit automatically scan for the DGPS beacon signal, or you can enter the beacon frequency and bit rate on the unit, and the information is used to tune the beacon receiver. If you use a DGPS receiver, WAAS capability is automatically turned off.

Sonar Page 104 GPSMAP 376C Owners Manual

Adjusting the Sonar Page

Use the Adjustment Menu to access the settings and features most commonly used on the Sonar Page. Ten main adjustment options are available: Range, Zoom, View, Gain, Target Level, Whiteline, Frequency, Depth Line, Noise Reject, and Scroll. The currently selected option appears in the upper-left corner. To select an adjustment option:
Use one of the following methods to select an adjustment option: Press the ROCKER right or left to scroll through the adjustment options. When the adjustment option you want appears, press Enter. Press Menu, highlight Adjustments, and press Enter. Use the ROCKER to highlight the adjustment and press Enter.

Sonar Adjustment Options

Scrolladjusts the rate that the sonar display scrolls from right to left. If you are sitting still or the sonar display is moving too fast, slow the scroll rate or pause the scrolling. Rangesets the display depth range used for viewing. The unit can be set to automatically track the bottom or set to a user-specified depth range. Zoomallows you to select a display zoom scale or to split the display. When a scale other than No Zoom is selected, the Adjustment Menu shows a new selection labeled View or Span. The Zoom function is divided into six levels: 2X Splitshows two reduced-size sonar pictures at the same time. The right half of the display shows the complete sonar picture at its original scale. The left half shows a portion of the original picture at 1/2 depth scale.
After you select an adjustment option, press the ROCKER up or down to change the setting. You can also press Menu and highlight a shortcut setting to quickly change to commonly used settings and values. Press Enter to accept the new setting (or press Quit to cancel) and return to the Sonar Page.
2X Zoomshows the 2X zoomed picture on the full screen. 4X Splitshows two reduced pictures, the right at the original depth scale and the left at 1/4 the original depth scale. 4X Zoomshows the 4X zoomed picture on the full screen. Btm (Bottom) Splitshows two reduced pictures, the right at the original depth scale and the left showing sonar returns from the bottom up. All target depths read as a distance from the bottom. Btm (Bottom) Lockshows returns from the bottom up on the full screen.
Tip: Quickly zoom in and out of the Sonar display by pressing the In and Out keys. Turn off the zoom function by pressing the Out key until the No Zoom setting appears.

Performance

Receiver: Differential-ready 12 parallel channel receiver Acquisition Times: Approx. 15 seconds (warm start) Approx. 45 seconds (cold start) Approx. 5 minutes (First Time/AutoLocate) Update Rate: 1/second, continuous Accuracy GPS: DGPS (USCG): DGPS (WAAS): Velocity: Dynamics: 15 meters (49 feet) RMS 95% typical 35 meters (1016 ft), 95% typical < 3 meters (10 ft) 95% typical with DGPS corrections 0.1 knot RMS steady state 6 g's

Battery: Battery Life:

Source: Fuse:
Appendix > Optional Accessories

Optional Accessories

PC Interface Cable: Connects the unit to a serial port on your computer. Power/Data Cable: Allows you to connect the unit to the electrical system using bare wires. Programmable Data Cards: Blank data cards available in 8 MB, 16 MB, 32 MB, 64 MB, 128 MB,256 MB and 512MB sizes. Download detailed map data from MapSource CD-ROMs to a data card, either directly through your GPSMAP376C using the PC USB cable, the optional PC Interface cable, or with the optional USB Data Card Programmer. USB Data Card Programmer: Programs blank data cards at high speed through a computer. Carrying Case: Protects the GPSMAP 376C when not in use; has storage space for data cards. Protective Cover: Snaps on the front of the unit to protect the screen from damage. MapSource Software CD-ROMs and DVDs: Offers several detailed mapping options that are compatible with the GPSMAP 376C, including City Navigator, US Inland Lakes, BlueChart, Fishing Hot Spots, and Topo. Pre-Programmed Data Cards: Data cards preprogrammed with either Garmin BlueChart, BlueChart g2 or Fishing Hot Spots map data.
In addition to the standard accessories included with your GPSMAP 376C, several optional accessories are available to enhance the operation of the GPSMAP 376C. To obtain replacement parts and optional accessories, contact your Garmin dealer, Garmin Product Support in the USA at 800/800.1020, or Garmin Europe at 44/0870.8501241.
WARNING: Garmin accessories have been designed and specifically tested for use with Garmin products. Accessories offered by other manufacturers have not been tested or approved for use with Garmin products. Use of such accessories could cause damage to the GPSMAP 376C and void the warranty.
Auto Navigation Kit: Provides the parts and map data to use the GPSMAP376C in an automobile. GA 29, GA 29F, and GA 26C Antennas: Garmin remote antennas. Non-Skid Friction Mount: Portable vehicle mount, no installation required. Permanent and Temporary Adhesive Disks: Adhesive disks for using the unit in a vehicle. External Speaker with 12/24-Volt Adapter Cable: Allows the unit to operate from the vehicles power system through the cigarette lighter adapter. Provides a speaker for vocal prompts.

heading 90 highways avoid 87 Highway Page 48, 85 hiding/showing 48 options menu 49 page layout 49 setup 49 Hunt & Fish Sub Tab 82 hurricanes 96
magnetic variation 90 main menu 6794 Alarms tab 76 Calendar tab 78 Celestial tab 79 Display tab 84 DSC tab 71 GPS tab 67 Message tab 83 Points tab 70 Route tab 70 Sonar tab 75 Track tab 71 Weather tab 68, 98100 XM tab 69 man overboard. SeeMOB map datum 126 map orientation 41 Map Page 38, 64 declutter 43 setup 40 Marine Mode pages 3842 Marine Pages 3855 Active Route 50 Compass 45
Highway 48 Map 38 Position Data 51 XM Audio 52 marine timer 46 marine warnings 97 Maritime Mobile Service Identity. SeeMMSI marking a waypoint 9, 25, 26, 28 underwater 107 mayday 74, 128 measuring distance 44 messages 129, 131 Message Tab 83 mils 89 MMSI 71, 127 MOB 14, 16 modes 56 month view 79 moon information 81 Mrn Wx Tab 97
navigation resuming 60 stopping 60 navigation alarms 76 near current route 18, 19 destination 18, 19 next 18, 19 other 18, 19 new altitude 6 location 6, 12 waypoint 26, 28 NEXRAD Radar 96 next turn 88 alarm 76 NMEA 92, 93, 94, 121 north up 6, 41 no beacon signal 123
Options Menu opening 9 using 9 overzoom 42
NAV/MOB 16 navigate route 14, 21 track 14, 16, 37
Off Route Recalculating Announcement 88 off course 76 off road 87 on-screen button 8
page layout 39 highway 49 trip computer 66 page sequence 13 panning the map 38, 42 PC interface cable 119 persistent alarm 76 plan route 23, 50 plan trips 78 point 79 points of interest 17 Points Tab 70 Position Data Page 51 options menu 51 position mode 38 position report 7275, 127128 power 3, 117 connector 1, 2 outlet 2 practice mode. Seesimulator mode
project waypoint location 28 proximity 32 alarms 32 points tab 32 waypoint 33 Route Tab 70 RTCM 92, 93 Setup Tab Guidance sub tab 88 Interface sub tab 91 Location sub tab 90 Road Routing sub tab 86 System sub tab 86 Timers sub tab 88 Time sub tab 89 Units sub tab 89 Welcome sub tab 91 set an alarm 76 set date 89 set fuel flow 23 set speed 23 shallow water 78 shorter distance 87 signal strength 5 simulate 6, 86 GPS 5 simulator mode 12 new location 12 starting 12 software license agreement 133 sonar 103, 104107 adjusting 105107 alarms 77 on the map page 103 setting up 108, 110 understanding 112 Sonar Tab 75 Sound Tab 85 speaker 85 specifications 115 speed filter 86 split screen, sonar 107 Srfc Wx Tab 97 stop navigation 50 storm cells 96 Sun & Moon Sub Tab 81 surface pressure 97 surface winds 97
radio ID 100 recalculating 88 receiver not usable 5 receiver status 5 receive satellite signals 3 receiving a DSC call 73 record tracks 34, 37 reference position 18 reset timer 88 reset trip data 51 review route 21 Road Routing Tab 86 route 22, 79 add points 22, 27 create 2023 edit 2123 leg transition 24 preference 87
sail boat racing timer 46 satellite acquisition 5 satellite mosaic 96 satellite signals 4 satellite sky view 122 save present location 25 save this route 65 saving the current route 65 saving tracks 35, 36, 37 scanning for beacon 123 scan for a frequency 92 scroll bar 8 searching for WAAS 123 searching the sky 5 search history 18 selecting options 9 serial communications port 119 serial data format 92 serial number 1

Do not mount in front of an airbag eld of deployment.
Always operate the vehicle in a safe manner. Do not become distracted by the GPSMAP 376C while driving, and always be fully aware of all driving conditions. Minimize the amount of time spent viewing the screen of the GPSMAP 376C while driving and use voice prompts when possible. Do not enter destinations, change settings, or access any functions requiring prolonged use of the units controls while driving. Pull over in a safe and legal manner before attempting such operations.
WARNING: This product, its packaging, and its components contain chemicals known to the State of California to cause cancer, birth defects, or reproductive harm. This Notice is being provided in accordance with Californias Proposition 65. If you have any questions or would like additional information, please refer to our Web site at http://www.garmin.com/prop65.
GPSMAP 376C Owners Manual v
INTRODUCTION > CAUTION

Caution

Failure to avoid the following potentially hazardous situations may result in injury or property damage. The GPSMAP 376C is designed to provide you with route suggestions. It does not reect road closures or road conditions, trafc congestion, weather conditions, or other factors that may affect safety or timing while driving. Use the GPSMAP 376C only as a navigational aid. Do not attempt to use the GPSMAP 376C for any purpose requiring precise measurement of direction, distance, location, or topography. The Global Positioning System (GPS) is operated by the United States government, which is solely responsible for its accuracy and maintenance. The governments system is subject to changes which could affect the accuracy and performance of all GPS equipment, including the GPSMAP 376C. Although the GPSMAP 376C is a precision navigation device, any navigation device can be misused or misinterpreted and, therefore, become unsafe.
Map Data Information: One of the goals of Garmin is to provide customers with the most complete and accurate cartography that is available to us at a reasonable cost. We use a combination of governmental and private data sources, which we identify in product literature and copyright messages displayed to the consumer. Virtually all data sources contain inaccurate or incomplete data to some extent. This is particularly true outside the United States, where complete and accurate digital data is either not available or prohibitively expensive.

Map Feature Information Page
2. Press PAGE or QUIT to exit the Information Page. You can also highlight one of the on-screen buttons and press ENTER to perform that operation.
Near Destinationcompiles the Find items lists based on the route destination. Near Current Routecompiles the Find items lists based on the active route.
BASIC OPERATION IN MARINE MODE > CREATING AND USING ROUTES
Creating and Using Routes

Creating a Route

The GPSMAP 376C lets you create and store up to 50 reversible routes, with up to 300 points each. Use the Route tab on the Main Menu to create routes. Routes can be created in two ways. The rst way is to select waypoints from the Find Menu, allowing you to see a list of the route points as you create the route. The second way is by selecting waypoints or map items from the Map Page, allowing you to see each route point graphically on-screen as you create the route.
1. Press MENU twice to display the Main Menu. 2. Use the ROCKER to highlight the Route tab. 3. Press MENU to display the Route options menu. Select New Route, and press ENTER, or highlight the rst available blank route slot and press ENTER. The Route Review Page automatically opens, showing a blank route. 4. Press ENTER to nd items to add to the route. The Find Menu opens. 5. Using the methods discussed in the Finding an Item section beginning on page 16, select a point to add to your route. When you nd an item, highlight OK and press ENTER to add the point to the route. Repeat until you have added all of the points to the route.
To create a route using the Find Menu:
Route Tab with the Route List
Creating a new route on Route Review page
1. Press MENU twice to display the Main Menu. Use the ROCKER to highlight the Route tab. 2. Press MENU to display the Route options menu. Select New Route and press ENTER. 3. Highlight the rst blank slot in the Route List Page and press MENU. Use the ROCKER to highlight Edit on Map and press ENTER. 4. Use the ROCKER to highlight the location you want to add and press ENTER. If you have selected an area of the map that is not a feature or waypoint, a new waypoint is created for that location. Press ENTER on the New Waypoint Page to save the location as a waypoint and continue adding points to your route. You can edit the properties of this waypoint as you can with any waypoint.
To create a route graphically:
5. Repeat until you have added all points to the route. 6. When nished, press QUIT twice to return to the Route Review Page. Or, press MENU, highlight Edit as Text, and press ENTER to view the Route Review Page.

Navigating a Saved Route

1. Press MENU twice to view the Main Menu. 2. Use the ROCKER to highlight Points from the vertical list of tabs, then highlight the waypoint you want from the list.
To access the Waypoint Edit Page:
To access the Waypoint Review Page:

Points Tab

3. Press ENTER to display the Waypoint Edit Page. If the waypoint is located on a map feature or MapSource or BlueChart feature, the Waypoint Edit Page will not show the details of the other map features.
Use either of these methods to access the Waypoint Page so you can edit the waypoint. Press MENU when the Waypoint Page is open to access the Waypoint options menu.
Adding a Waypoint to a Route
Append to Route adds the selected waypoint to the end of a route. This option appears when you are not navigating. When you are navigating to a destination, Add to Current Route appears. The selected waypoint is added to the current route before the route destination. To add a waypoint to the end of the route:
1. Open the Waypoint Edit Page, and press MENU to open the options menu.
Averaging the Waypoints Location
Average Location makes the unit take several sample location measurements for the waypoint and recalculate for a more accurate location reading.
NOTE: You must have a GPS satellite x before you can average a waypoints location. 1. Open the Waypoint Page and press MENU to open the options menu. 2. Select Average Location from the menu, and press ENTER. The Average Location window appears. Watch the elds change as the unit calculates the average location of the waypoint.
To calculate the average location:

Waypoint Options Menu

2. Select Append To Route from the options menu. The Select Route window appears. 3. Highlight a route or select New Route, and press ENTER. 4. Highlight OK, and press ENTER to save the waypoint.

28 Average Location Page

3. Press ENTER to save the location.
You can also create a new waypoint by projecting the distance and bearing from a specic location to a new location. To create a new waypoint by projecting its location:
1. Create a waypoint using your favorite method (discussed in previous sections). The new waypoint is created with the next available waypoint number and the receivers last known location as the default location. 2. Press MENU twice to open the Main Menu. 3. Highlight Points from the vertical list of tabs using the ROCKER. 4. Press MENU to open the New Waypoint Page options menu. 5. Highlight Project Location, and press ENTER.

Projecting a Waypoint

6. To change the location from which you are projecting the new waypoint, highlight the From eld, and press ENTER. The Find Menu opens. Select the point that you will project your new waypoint from just as you would select a waypoint or point of interest. For more information see the Finding an Item section on page 16. 7. To adjust the distance that the new waypoint will be projected beyond the original waypoint, highlight the Distance eld, and press ENTER. Enter the projection distance, and press ENTER. To adjust the bearing that the new waypoint will be projected from the original waypoint, highlight the Bearing eld, and press ENTER. Enter the bearing, and press ENTER. 8. When you have adjusted all elements of the projected location, highlight Save, and press ENTER. 9. Make any other changes to the new waypoint data (such as the name or symbol); highlight OK, and press ENTER.

To delete waypoints by distance:

Proximity Points Tab

If a proximity alarm circle overlaps an existing alarm circle, a Proximity Overlaps Another Proximity Waypoint message appears. Because the unit only alerts for one of the overlap points, use caution when navigating in these areas. If you enter an alarm circle overlap, you are only alerted to the closest proximity waypoint.
1. Press MENU twice to open the Main Menu. 2. Highlight Points from the vertical list of tabs. Highlight Proximity from the row of tabs along the top of the screen. 3. Use the ROCKER to highlight the eld below Proximity Alarm and press ENTER. 4. Select the On or Off setting and press ENTER. 1. From the Proximity Points tab, use the ROCKER to highlight an empty line on the Proximity List, and press ENTER. The Find Menu appears. 2. Select a waypoint or point of interest from the Find menu. With OK highlighted, press ENTER to select that point. (For complete information about selecting waypoints or points of interest from the Find Menu, see Finding an Item on page 16). 3. The distance eld is now highlighted. Press ENTER to begin entering the proximity radius. 4. Use the ROCKER to enter a distance value (up to 99.99 units) and press ENTER.
To turn proximity alarms on or off:
1. Press MENU twice to open the Main Menu. 2. Select the Points tab, and then highlight the Proximity sub tab. 3. Use the ROCKER to highlight the proximity waypoint to clear, and press MENU.
To clear one or all proximity waypoints from the list:
To add a proximity waypoint:
Proximity Points Tab Options Menu
4. To clear a single alarm, highlight Remove Point, and press ENTER. To clear all proximity waypoints, select Remove All, and press ENTER. 5. Use the ROCKER to highlight OK, and press ENTER to conrm.
BASIC OPERATION IN MARINE MODE > MANAGING YOUR TRACKS

Managing Your Tracks

The GPSMAP 376C draws an electronic breadcrumb trail or track log on the Map Page as you travel. The track log contains points along its path, including time, and location for each point. The track log starts recording as soon as the GPSMAP 376C gets a location x. For the best results, clear the track log before you start traveling because when the track log is full, new track points overwrite the oldest track points. The percentage of memory used by the current track log appears at the top of the Active tab. After the track log is cleared, it shows zero percent. When the track log reaches 100%, the most recent track points start to overwrite the least recent track points (if Wrap is selected for Record Mode). To avoid losing track points, save the track log when it approaches the 99% mark. You must rst save the track log before you can use the Navigate Track feature. The Save feature allows you to store up to 15 track logs from certain times and dates. To access the Track tab:

XM Audio Page eld on the Display tab
Add to Favoritesallows you to add channels to the Favorites category. See page 56 for more information. ScanEnables you to scan all channels, scan by category, or scan favorites. Each channel plays for ve seconds before advancing to the next channel in the list. See page 56 for more information. Display Artist (Display Song) In Listenables you to select whether to display the artist or the song title in the channel list. Mute (Enable) Audio Outputenables you to turn audio output on or off.
To select an XM Radio channel:
Press up or down on the ROCKER to scroll through the list of channels, highlight the channel you want, and then press ENTER. A triangle ( ) appears to the left of the channel currently playing.

Using Favorites

You can create a customized list of up to 30 of your favorite XM Radio channels.
1. Highlight the Category list, and press ENTER. 2. Press up or down on the ROCKER to select a category, and press ENTER, or use the IN and OUT keys. 3. Press up or down on the ROCKER to select a channel. 4. Press MENU. 5. Highlight Add To Favorites, and press ENTER. Repeat steps 1 through 4 to add another channel.
To add a channel to Favorites:
3. Press up or down on the ROCKER to highlight the channel you want to select from your list of favorites, and press ENTER. A triangle appears to the left of the newly selected channel.

Selected channel

Favorites List
You can delete a channel from the Favorites list or delete all channels.
1. In the Favorites category, highlight the channel you want to delete, and press MENU. 2. Highlight Delete Favorite to delete the selected channel from your favorites list, or highlight Delete All Favorites to delete all channels from your Favorites list. 3. Press ENTER. A conrmation message appears. 4. Highlight OK, and press ENTER again to conrm.
To delete a channel from Favorites:
Adding a channel to Favorites
To view and select Favorites:
1. Highlight the Category list, and press ENTER. 2. Press up or down on the ROCKER to select the Favorites category, and press ENTER.
Scanning XM Radio Channels
From the XM Audio Page, you can scan all channels, scan channels in a specic category, or scan channels in your Favorites.
1. On the XM Audio Page, press MENU. 2. Select Scan on the options menu, and press ENTER. 3. Select All Channels to scan all channels. Or Select Category to scan only channels in the selected category. Or Select Favorites to scan only channels in your Favorites list. 4. Press ENTER. Each channel is played for ve seconds and then advances to the next channel. 5. Press any key to stop scanning and select the current channel.

Turning Audio On or Off

To turn audio on or off:
You can mute or enable audio output. Audio is enabled by default.

Saving the Current Route

You can scroll through the entire list by moving the scroll bar up or down. Highlight any of the turns on the list and press ENTER to view the Next Turn Page for that turn. The Current Route and Next Turn Page display similar information using a different layout. The Next Turn Page shows your next turn on a map.
AUTOMOTIVE MODE PAGES AND FEATURES > TRIP COMPUTER PAGE

Trip Computer Page

The Trip Computer Page shows important data while navigating a route in Automotive Mode. It indicates your current speed and other helpful data about your trip, such as average speed and moving time.
Trip Computer Page Options Menu
Reset the Trip Computer before beginning a trip. If you make frequent stops, leave the GPSMAP 376C turned on in order to receive satellites. This allows the unit to accurately measure elapsed time during the trip.
Set Up Page Layoutallows you to choose the layout and number of data elds. You can change the layout of the Trip Computer to the Dashboard layout while still in Automotive Mode. You can also then change the data elds on the Dashboard to be more useful while in Automotive Mode. Change Nearest Typeallows you to specify the type of item to be used as the nearest item [shown in the lower-left data eld of the Position Data (2 Columns) layout]. The choices change based on the current Usage Mode. Select the Reset options to reset the maximum speed, the odometer, everything but the max speed and odometer, or reset everything in the trip computer.
The following options are available from the Trip Computer options menu. Some options are only available if you have changed the page layout. Press MENU to open the options menu. Highlight an option, and press ENTER.

MAIN MENU > GPS TAB

MAIN MENU
The GPSMAP 376Cs Main Menu provides access to various waypoint, system, navigation and interface management, and setup menus. The Main Menu is accessible from any page by pressing the MENU key twice.
The GPS tab provides a visual reference of satellite acquisition, receiver status, and accuracy. The sky view and signal strength bars give an indication of what satellites are visible to the receiver and whether they are being tracked. For more information about GPS, see pages 4-6.

Main Menu

Main MenuGPS Tab
1. From any page, press MENU twice to open the Main Menu. 2. Press up or down on the ROCKER to highlight the tab you want. The information for the highlighted tab automatically appears on the right. To highlight a sub tab, press left or right on the ROCKER, and then press up or down to select individual elds.
To select a tab from the Main Menu:
MAIN MENU > WEATHER TAB AND XM TAB
Use the Weather tab on the Main Menu to view individual weather features without turning all other weather features on or off. For example, you can select Storm Cells to view only storm cells on the Map window that appears on the Weather tab. When you close the Main Menu and return to the Map Page, all of your previously selected weather features still appear on the Map Page.

The Saved sub tab shows a list of all saved tracks in your unit.

MAIN MENU > DSC TAB

DSC Tab
The DSC tab (Marine Mode only) allows you to control and set up the Digital Selective Calling (DSC) features on the GPSMAP 376C. DSC uses marine VHF radio and GPS technologies to transmit and receive location information. DSC is used by mariners for two major operations: distress calls and position reporting. For more information about DSC and Maritime Mobile Service Identity (MMSI) numbers, see pages 127-128 in the Appendix.
Understanding Distress Calls
With your GPSMAP 376C properly connected to a VHF radio with DSC output, you can receive any DSC distress call within range. An alert message appears and a tone sounds when a distress call is received. The alarm only sounds on a distress call; position reports do not sound the alarm. Distress calls are broadcast to all DSC users in radio range and appear with a blue and white checkered icon on the DSC Call List and Log tabs. You can enter a callers name, if it is known. The callers name replaces the MMSI number as a reference once entered.
Understanding Position Reports
The Position Report operates similarly to the distress call. This type of contact is like a phone call; no emergency alarms are set off. Position reports are not broadcast to all DSC users and appear with a gold boat icon.

DSC Page

Receiving DSC Calls
Each time you receive a distress call or position report, a review page openseither a DSC Position Report Page or a Distress Call Page. Both pages contain identical elds to the DSC Entry Review Page.
Each entry in the Call List and Log has a corresponding DSC Entry Review Page. This page operates similarly to the Distress Page and Position Report Page. From the DSC Entry Review, you can Delete the entry, Save it as a waypoint, or show the location on the map.
1. Open the Call List or Log from the DSC tab. 2. Press up or down on the ROCKER to highlight the call you want to review. 3. Press ENTER to open the DSC Entry Review Page.
To review a call or log entry:
DSC Call List The Call List shows the 50 most recent calls, even if the unit is left unattended. The Call List only shows the most recent call from a vessel. If a second call is received, it replaces the rst call in the Call List. Press MENU to sort the list and delete entries.

Weather Alarms

The Weather sub tab contains the following alarms: Tornado Warningssets an alarm to sound when you enter an area where a tornado warning is in effect. Thunderstorm Warningssets an alarm to sound when you enter an area where a severe thunderstorm warning is in effect. Flood Warningssets an alarm to sound when you enter an area where a ood warning is in effect.
MAIN MENU > CALENDAR TAB
Flash Flood Warningssets an alarm to sound when you enter an area where a ash ood warning is in effect. Marine Warningssets an alarm to sound when you enter an area where a marine warning is in effect.
Use the Calendar tab to plan trips, view sun and moon, and hunting and shing information for the day.
Highlight an arrow and press ENTER to change the date in the view.

Calendar Tab

Sonar Alarms
The Sonar sub tab contains the following alarms: Shallow Water/Deep Watersets an alarm to sound when you enter an area of water that is too shallow or deep. Select On and then enter a specic distance. You must be receiving sonar NMEA data for this function to work. Water Tempsets an alarm to indicate if the water temperature has exceeded or dropped below a specic temperature, or fallen outside/ inside a specic temperature range. Select Above or Below and then enter a specic temperature, or select Inside or Outside and enter a range of temperatures. You must be receiving sonar NMEA data for this function to work. Driftsets an alarm to sound when you exceeded a specied drift distance. Select On and then enter a specic distance. Fishsets an alarm to sound when sh are detected with sonar.
List of points and routes added to this date. Calendar Tab in Day View Sunrise and set times for the current location and date.

Calendar Options

The options menu is available in all three calendar views. Press MENU on any of the calendar views to open the options menu. To view the Sun & Moon Information or Hunt & Fish sub tab, highlight View Sun and Moon or View Hunt and Fish and press ENTER.
1. Press MENU twice to open the Main Menu. 2. Highlight the Calendar tab. The current day appears on the Day View sub tab.
To add a route (or point) to the calendar:
MAIN MENU > CELESTIAL TAB 3. Press MENU to open the options menu. Highlight Add Route (or Add Point) and press ENTER. 4. From the pop-up route list (or the Find menu if Add Point was selected), select the route you want to add to the calendar, and press ENTER.

Celestial Tab

Day View Sub Tab
The Celestial tab shows tide information, sun and moon information, and hunting and shing information. You can display this data for your current location, a location from the map, or a waypoint location. Also, you can select a different date and time, or use the current data.

USING XM WX WEATHER > SETTING XM WX WEATHER OPTIONS

USING XM WX WEATHER

This section describes how to use XM WX Satellite Weather with your GPSMAP 376C. You must have a subscription to XM WX Weather, and you must plug your GXM 30 antenna into the USB port on the back of the unit to receive the XM signal. If you do not have a subscription to XM WX Weather, the features described in this section work only when the GPSMAP 376C is in Simulator Mode (see page 11) and the GXM 30 antenna is unplugged. You can view XM WX Weather on your GPSMAP 376C in one of three ways: To view all weather information on the map, Use the Map Page. To view a specic weather feature such as NEXRAD Radar or Storm Cells, for example, you can use the Weather tab on the Main Menu. For more information, see page 98. To view current weather conditions and forecast information for your current location or a specic location, use the Weather Data option on the Find menu. For more information, see page 101.

Viewing XM WX Weather

From the Map Page, you can turn weather information on or off. To turn XM WX Weather on or off on the Map Page:
Press and hold the MENU/Wx key to toggle XM Weather on or off. Or Press MENU, select Hide (Show) Weather, and then press ENTER.
Map Page with XM WX Weather
Setting XM WX Weather Options
Use the Map Page options menu to adjust the way weather items appear on the Map Page. Three tabsWeather, Srfc Wx, and Mrn Wxallow you to adjust what weather items appear on the Map Page, and the scale at which they appear. For detailed information about specic weather features, see the GXM 30 Owners Manual.
To set up weather options on the Map Page:
1. From the Map Page, press MENU to open the options menu. 2. Highlight Set Up Map, and press ENTER.
Use the Weather tab to turn XM WX Weather data on or off on the Map Page, and set the map scale at which weather information rst appears on the Map Page.

Map Page Options Menu

3. Press left or right on the ROCKER to highlight the Weather, Srfc Wx, or Mrn Wx tab. 4. Press up or down on the ROCKER to highlight the eld you want to change, and press ENTER. 5. Press PAGE or QUIT to exit.
Weather DataAllows you to turn XM WX Weather data on or off from the Map Page. NEXRAD Radar, Satellite Mosaic, Lightning, Storm Cells, Hurricanessets the map scale at which the feature rst appears on the Map Page. Select Auto, Off, or from 20 ft to 800 nm.

In addition to the standard accessories included with your GPSMAP 376C, several optional accessories are available to enhance the operation of the GPSMAP 376C. To obtain replacement parts and optional accessories, contact your Garmin Dealer, Garmin Product Support in the U.S.A. at 800/800.1020, or Garmin Europe at 44/0870.8501241.
WARNING: Garmin accessories have been designed and specically tested for use with Garmin products. Accessories offered by other manufacturers have not been tested or approved for use with Garmin products. Use of such accessories could cause damage to the GPSMAP 376C and void the warranty.
Auto Navigation Kit: Provides the parts and map data to use the GPSMAP 376C in an automobile. GA 29, GA 29F, and GA 26C Antennas: Garmin remote antennas. Non-Skid Friction Mount: Portable vehicle mount, no installation required. Permanent and Temporary Adhesive Disks: Adhesive disks for using the unit in a vehicle. External Speaker with 12/24-Volt Adapter Cable: Allows the unit to operate from the vehicles power system through the cigarette lighter adapter. Provides a speaker for vocal prompts.
APPENDIX > INSTALLATION INFORMATION

Installation Information

This section of the Appendix provides information on connecting the GPSMAP 376C to auxiliary devices and removing the antenna.

Data Out Blue

Voice (-) Orange
Connecting the Power/Data Cable
The power/data cable connects the GPSMAP 376C to an 1135 VDC system and provides interface capabilities for connecting external devices. The color code in the diagram below and to the right indicates the appropriate harness connections. Replacement fuse is a 3AG - 1.5 Amp fuse.
Ground Black Alarm White Voice (+) Brown Data In Yellow Voice (-) Orange Data Out Blue

Power Red

Ground Black Alarm White Voice (+) Brown Data In Yellow
Power/Data Connector on the Cable

Red: Power

Black: Ground

1135 VDC

Power/Data Connector on the GPSMAP 376C Unit

APPENDIX > SOFTWARE LICENSE AGREEMENT AND PRODUCT REGISTRATION
Software License Agreement
BY USING THE GPSMAP 376C, YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS OF THE FOLLOWING SOFTWARE LICENSE AGREEMENT. PLEASE READ THIS AGREEMENT CAREFULLY. Garmin grants you a limited license to use the software embedded in this device (the Software) in binary executable form in the normal operation of the product. Title, ownership rights, and intellectual property rights in and to the Software remain with Garmin. You acknowledge that the Software is the property of Garmin and is protected under the United States of America copyright laws and international copyright treaties. You further acknowledge that the structure, organization, and code of the Software are valuable trade secrets of Garmin and that the Software in source code form remains a valuable trade secret of Garmin. You agree not to decompile, disassemble, modify, reverse assemble, reverse engineer, or reduce to human readable form the Software or any part thereof or create any derivative works based on the Software. You agree not to export or re-export the Software to any country in violation of the export control laws of the United States of America.

Product Registration

Help us better support you by completing our online registration today! Have the serial number of your GPSMAP 376C handy and connect to our Web site (www.garmin.com). Look for the Product Registration link on our Home page. Use this area to record the serial number (8-digit number located on the back of the box) in case your GPSMAP 376C is lost, stolen, or needs service. Keep your original sales receipt in a safe place or attach a photocopy inside the manual. Serial Number: ___ ___ ___ ___ ___ ___ ___ ___

Contact Garmin

If you should encounter any difculty while using your GPS unit, or if you have any questions, in the U.S.A. contact Garmin Product Support by phone: 913/397.8200 or 800/800.1020, MondayFriday, 8 AM5 PM Central Time; or by e-mail at sales@garmin.com. In Europe, contact Garmin (Europe) Ltd. at 44/0870.8501241.
APPENDIX > LIMITED WARRANTY

Limited Warranty

This Garmin product is warranted to be free from defects in materials or workmanship for one year from the date of purchase. Within this period, Garmin will at its sole option repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts or labor, provided that the customer shall be responsible for any transportation cost. This warranty does not cover failures due to abuse, misuse, accident, or unauthorized alteration or repairs. THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED OR STATUTORY, INCLUDING ANY LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, STATUTORY OR OTHERWISE. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE. IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE, OR INABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT. Some states do not allow the exclusion of incidental or consequential damages, so the above limitations may not apply to you. Garmin retains the exclusive right to repair or replace the unit or software or offer a full refund of the purchase price at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY.

Arrival Alarm 77 Ask My Preference 87 Assign Category 31 Attention Tone 85 AutoLocate 3, 5 Automotive Mode 58 following a saved route 61 navigating 59 pages 6567 page sequence 58 Auto Arrange 18 Average Location 28 Avoidance Button 87 Avoids 62, 87
Backlight 3, 85 Basic Operation 12, 58 Battery level 4 pack 1, 2 saver mode 86 Beeper 85 BlueChart 120 Bug Indicator 48
Cable 117 Calculation Method 87 Calendar Tab 78
Calibrate Water Speed 109 Cards, Data 120 Carpool Lanes 87 Categories Find Menu 16 Waypoint 31, 32 Caution vi CDI. See Course Deviation Indicator Celestial Tab 79 Hunt & Fish sub tab 82 Sun & Moon sub tab 81 Tide sub tab 79 Chain Number 124 Charging 2, 4 Check Beacon Wiring 123 Cigarette Lighter Adapter 2 Cities 16 Cleaning iv Clear Track Log 36 Clock Alarm 77 Color Mode 84 Compass Page 47, 49, 85 marine timer 48 options menu 48 showing/hiding 48 Connecting the GXM 30 Antenna 118 Connecting the Power Cable 2, 117 Contact Garmin 133 County Warnings 97
Count Down or Up 88 Course Pointer 48 Create category 31 route 19, 20 waypoints 24, 25 Current Route Page 64 Custom Avoids 62, 87 Data Card 45, 120 information 18, 43 slot 1 Data Fields changing 41, 42 options 131 Date 89 Daylight Saving Time 89 Day View 79 DB-Deactivate 52 Declutter 46 Deep Water 78 Defaults 8, 10 Delete category 32 DSC Call 73 DSC directory item 74 route 23 GPSMAP 376C Owners Manual
track log 36 waypoint 32, 33 Depth 89 Detailed Maps 45 Detour 63 DGPS 92, 93, 122 alarm 77 Differential 122, 123 Digital Selective Calling. See DSC Direction Display 89 Display Tab 84 Distance and Speed 89 Distress Calls 72, 73, 74, 75, 127, 128 Drift 78 DSC 72, 127128 DSC Tab 72 Edit route 21, 22, 62 waypoints 30 Editing a Waypoint 30 Emergency 127 Entering Data 9 Erase Track Log 36 Exits 16 External Power Source 4 External Voltage alarm 77 GPSMAP 376C Owners Manual
Faster Time 87 FCC 127, 128, 137 Field 8 Find 16 from 16 from a different location 16, 17 menu 14, 18 Finding an Item 1618 Find Current Location 3 Find Menu 16 Fishing 82 Fish Symbols 108 Flasher 110 Following an Automotive Route 64 Forecast Map 98 Fronts 97 Fuel Flow 23

Page Layout 41 highway 51 trip computer 67 Page Sequence 12 Panning the Map 41, 45 PC Interface Cable 119 Persistent Alarm 77
Radio ID 100 Recalculating 88 Receiver Not Usable 5 Receiver Status 5 Receive Satellite Signals 3 Receiving a DSC Call 74 Record Tracks 35, 38 Reference Position 17 Registration 133 GPSMAP 376C Owners Manual
Reset Timer 88 Reset Trip Data 53, 67 Review Route 21 Road Routing Tab 86 Route 22, 78, 122 add points 22, 28 create 1923 edit 2123 leg transition 23 marine 39 options menu 23 preference 87 Route Tab 70 RTCM 92, 93 Selecting Options 9 Serial Communications Port 119 Serial Data Format 92 Serial Number 1, 133 Setup Tab 86 Guidance sub tab 88 Interface sub tab 91 Location sub tab 90 Road Routing sub tab 86 System sub tab 86 Timers sub tab 88 Time sub tab 89 Units sub tab 89 Welcome sub tab 91 Set an Alarm 76 Set Date 89 Set Fuel Flow 23 Set Speed 23 Shallow Water 78 Shorter Distance 87 Signal Strength 5 Simulate 6, 86 GPS 5 Simulator Mode 11 new location 11 starting 11 Software License Agreement 133 Sonar 103, 104107 adjusting 105107 alarms 78 on the map page 103 setting up 108, 110 understanding 112 Sonar Tab 76 Sound Tab 85 Speaker 85 Specications 115 Speed Filter 86 Split Screen, Sonar 107 Srfc Wx Tab 97 Stop Navigation 52 Storm Cells 96 Sun & Moon Sub Tab 81 Surface Pressure 97 Surface Winds 97 Switch Modes 12, 58 System Alarms 77 Temperature 89, 111 Text Language 86 Thermoclines 114 Tide chart 80 information 80 station 16, 80 sub tab 80 Time delay 124 format 89 offsets 126 zone 89 Timer 48 Toll Roads 87 TracBack 13, 38 Track legs 38 log 35, 36, 38 review page 36, 37 tab 35 TracBack 37, 38 Track Tab 71 Track Up 6, 44 Transducer 108, 113 Trip Computer Page 53, 67 options menu 67 page layout 67 Trip Planning 23, 78 Tuning Beacon 123 Turn-by-Turn Route 14, 59, 61, 64 Turn Off Recalculation Announcement 88 Turn Unit On and Off 3
Sail Boat Racing Timer 48 Satellite Acquisition 5 Satellite Mosaic 96 Satellite Signals 4 Save Present Location 24 Save this Route 66 Saving the Current Route 66 Saving Tracks 36, 37, 38 Scanning for Beacon 123 Scan for a Frequency 92 Scroll Bar 8 Searching for WAAS 122 Searching the Sky 5 Search History 17 GPSMAP 376C Owners Manual