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nüvi 30/40/50 Owner’s Manual 17
About Memory Cards
You can purchase memory cards from an electronics
supplier, or purchase pre-loaded Garmin mapping
software (www.garmin.com/trip_planning). In
addition to map and data storage, the memory card
can be used to store files such as maps, images,
geocaches, routes, waypoints, and custom POIs.
Installing a Memory Card
The device supports microSD™ and microSDHC
memory or data cards.
Insert a memory card into the slot on the device.
Transferring Files from Your
1 Connect the device to your computer ( page 2).
Your device and memory card appear as
removable drives in My Computer in Windows
and as mounted volumes on Mac computers. NOTE: Some computers with multiple network
drives cannot display nüvi drives. See your
operating system Help file to learn how to map
2 On your computer, open the file browser.
3 Select the file.
4 Select Edit > Copy.
5 Open the Garmin or memory card drive or
6 Select Edit > Paste.
The file appears in the list of files in the device
memory or on the memory card.
Disconnecting the USB Cable
Complete an action:
For Windows computers, click the eject icon
in your system tray.
• For Mac computers, drag the volume icon to
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18 nüvi 30/40/50 Owner’s Manual
2 Disconnect the cable from your computer.
If you do not know the purpose of a file, do not delete
it. Your device memory contains important system
files that should not be deleted.
1 Open the Garmin drive or volume.
2 If necessary, open a folder or volume.
3 Select the file.
4 Press the Delete key on your keyboard.
Customizing the Device
1 Select Settings.
2 Select a setting category.
3 Select the setting to change it.
Select Settings > System.
• GPS Simulator—stops the device from receiving
a GPS signal, and saves battery power.
• Units—sets the unit of measure used for
• Keyboard Layout—sets the keyboard layout.
• Safe Mode— disables all functions that require
significant operator attention and could become a
distraction while driving.
• About—displays the nüvi software version
number, the unit ID number, and information
about several other software features. You need
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nüvi 30/40/50 Owner’s Manual 19
this information when you update the system
software or purchase additional map data.
Select Settings > Navigation.
• Route Preference—select a preference for
calculating your route.
• Avoidances—select the road types you want to
avoid on your routes.
Select Settings > Display.
• Color Mode—sets a light background ( Day),
a dark background ( Night), or automatically
switches between the two based on the sunrise
time and the sunset time for your current location
• Screenshot—allows you to take a picture of the
device screen. Screenshots are saved in the
Screenshot folder of the device storage. •
Brightness—changes the brightness of the
screen. Decreasing the brightness can save
Select Settings > Time.
• Time Format—select a 12-hour, 24-hour, or UTC
• Current Time—manually set the time on your
nüvi. Select Automatic to have the device set the
time based on your location.
Select Settings > Language.
• Voice Language—sets the language for voice
• Text Language—sets all on-screen text to the
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20 nüvi 30/40/50 Owner’s Manual
NOTE: Changing the text language does not
change the language of user-entered data or map
data, such as street names.
• Keyboard—sets the language for your keyboard.
Select Settings > Map.
• Map Detail—adjusts the amount of detail shown
on the map. Showing more detail can cause the
map to redraw slower.
• Map View—sets a map perspective.
◦ Track Up—displays the map in two
dimensions (2D) with your direction of travel
at the top.
◦ North Up —displays the map in 2D with North
at the top.
◦ 3D—displays the map in three dimensions
(3D) in Track Up. •
Vehicle—select Change to change the icon used
to display your position on the map. Download
additional vehicle icons at www
• Trip Log—shows or hides the log of your travels.
• Map Data Layout—changes the amount of data
visible on the map.
• Info—view the maps and the version of each
map loaded on your nüvi. Select a map to enable
or disable that map.
TIP: To purchase additional map products, go to
Proximity Points Settings
Select Settings > Proximity Points.
• Alerts—notifies you when you approach custom
safety cameras ( page 24).
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You can restore a category of settings or all settings
to the factory defaults.
1. Select Settings.
2. If necessary, select a settings category.
3. Select Restore.
Caring for Your Device
Avoid dropping your device and operating it in high-
shock and high-vibration environments.
Do not expose the device to water.
Contact with water can cause this device to
Do not store the device where prolonged exposure
to extreme temperatures can occur, because it can
cause permanent damage.
Never use a hard or sharp object to operate the
touchscreen, or damage may result.
Cleaning the Outer Casing
Avoid chemical cleaners and solvents that can
damage plastic components.
1 Clean the outer casing of the device (not the
touchscreen) using a cloth dampened with a mild
2 Wipe the device dry.
Cleaning the Touchscreen
Use a soft, clean, lint-free cloth.
2 If necessary, use water, isopropyl alcohol, or
eyeglass lens cleaner.