I've started a few times in Calgary at -20 and didn't have that problem.
-40C? Where do you live? Antarctica?-40C Sask, works just fine. Slow response obviously but still works.
All the liquid in the LCD screen is frozen :wink:From the Troubleshooting section on Page 127 of the Nav Manual:
This may not be the same exact problem you're seeing, but folks in Canada may well have to wait a few minutes for the screen to brighten in the winter.