not talking about theft but temperature wise.. especially in this cold weather....
i guess it's ok since many cars have built-in navi's..

 

I've left mine for two very cold winter seasons, no issues at all. If it's super cold, the screen can take a few minutes to come to full brightness.

 

I set mine on the floorboard to get it out of the sun.

 

My GPS has been sitting in my glove box all winter. I used it a few days ago, worked fine. At the very worst, the screen may have a bit of lag loading, but that is apparent with most electronics with screens (nav, iPod, etc.). I'm in NJ. It was 19 the other day

You know what's crazy is the parking kiosks in Phila are getting laggy due to the cold. It's awesome but not really.

 

I left mine in my car for 3 years. No problem.
I live in Norcal which doesn't get very cold though.

 

i'm in NJ too and it's cold as hell right now!

 

Its 45 here in fl and im freezing

 

^ you are like, sissy girl!!

 

i leave mines in the car, but when its not in use its in the glove box.

no issues so far.

 

I've left mine in the car in freezing weather and 100+ degree temps
for 3 years, no problems.