Troubleshooting - Garmin Nuvi 850 Owner's Manual

Troubleshooting

Problem/Question
My nüvi never gets
satellite signals.
The suction cup will not
stay on my windshield.
My nüvi does not
charge in my vehicle.
My battery does not
stay charged for very
long.
My battery gauge does
not seem accurate.
How do I clear all my
user data?
The nüvi is locked
up/frozen.
The touch screen is
not responding to my
touches properly.
nüvi 800 Series Owner's Manual
Solution/Answer
Take your nüvi out of parking garages and away from tall buildings
and trees. Remain stationary for several minutes.
Clean the suction cup and windshield with rubbing alcohol. Dry with
a clean, dry cloth. Mount the suction cup as described on
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.
To maximize the time between charges, turn down the backlight.
Touch Tools > Settings
To avoid draining the battery, remove the battery when your nüvi is
not in use.
Allow the unit to fully discharge, and then fully charge it (without
interrupting the charge cycle).
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 Yes to clear all user data.
If the nüvi screen stops functioning, turn the nüvi off and on again.
If this does not help, slide the
seconds. Turn the nüvi back on. The nüvi should operate normally.
Slide the Power key to the left and hold it for 8 seconds. Release
the Power 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").
> Display > Adjust Brightness.
Power key to the left and hold it for 8
Appendix
page 2.
page 56.