A Signal From "MARS" On The NAV Screen...WTF..??

[Boar-Ral]

Originally Posted by Viet Nam Vette

Anyone else have any cold weather problems with the NAV.??
I think these units don't dig the cold at all. I know CD drive mecks don't do well in cold weather.

What's your experience with this topic.??

My Hummer spends all of its time outside and I have used the navigation system as cold as -55C (-70F) and it works flawlessly. The display is very sluggish, but never garbled and everything still works. If the problem continues, I would speak to your dealership.