I was recently in the mountains were the temperature was recorded at a low of -17 F. Started my car without any issues, drove a few miles then stopped for breakfast. When I returned to the car I noticed the key fob would no longer operate any of the door locks. Once I started the car I noticed the multifunction display was no longer working either. When I returned home I tried a different key fob. That one also didn't work. I'm guessing it's a car issue and not a key battery issue. Are the display and key fob electronics related? Or is it coincidence they both went out at the same time? Thanks for the help!