Garmin 855 Guida Utente

Appendix

My nüvi never gets 

satellite signals.

Take your nüvi out of parking garages and away from tall buildings 

and trees. Remain stationary for several minutes. 

The suction cup will not 

stay on my windshield.

Clean the suction cup and windshield with rubbing alcohol. Dry with 

My nüvi does not 

charge in my vehicle.

Check the fuse in the vehicle power cable. Ensure the vehicle is 

turned on and is supplying power to the power outlet. See 

.

Your nüvi can only charge between 32°F and 113°F (0°C and 45°C). 

If the nüvi is placed in direct sunlight or in a hot environment, it 

cannot charge. 

My battery does not 

stay charged for very 

long.

To maximize the time between charges, turn down the backlight. 

Touch 

 > 

 > 

 > 

.

To avoid draining the battery, remove the battery when your nüvi is 

not in use.

My battery gauge does 

not seem accurate.

Allow the unit to fully discharge, and then fully charge it (without 

interrupting the charge cycle).

How do I clear all my 

user data?

Hold your finger on the lower-right corner of the nüvi screen while it 

is turning on. Keep your finger pressed until the message appears. 

Touch 

 to clear all user data.

The nüvi is locked 

up/frozen.

If the nüvi screen stops functioning, turn the nüvi off and on again. 

If this does not help, slide the 

 key to the left and hold it for 8 

seconds. Turn the nüvi back on. The nüvi should operate normally.

The touch screen is 

not responding to my 

touches properly.

Slide the 

 key to the left and hold it for 8 seconds. Release 

the 

 key, and press your finger to the screen. Hold your finger 

on the screen for about 30 seconds until the calibration screen 

appears (white screen with “Press dot”).