I work in the service department of a nissan dealership. I've seen -25 deg F on my outdoor temp display on my truck, which doesn't factor in wind.
We see a ton of frozen locks, latches.
People are always coming in for poor heat.
Vent control valves are always getting moisture in them and setting off SES lights.
Suspensions are making squeaking noises all the time.
berkeleying TPMS sensors are setting off the dash lights because the air in the tires contracts a ton with the temperature ranges we see.
Today I had a guy complaining his CVT-equipped Versa was shifting into second harshly when he starts driving in the morning.
Batteries are always frozen. We have an old rotted out pathfinder I start up every morning and it idles from 7:30 AM till noon or later that we use to boost cars around the lot with. I have 6 batteries in the hatch that I'm going to wire all together in parallel once the parts dept. gets me some welding cable.
Windsheild washer fluid is always frozen in the lines, even with the fluid that's good for -35
And the windsheilds of every car you pull into the shop goes from clear to solid white with frost about 10 seconds after you clear the overhead door. So you get good at driving with your head hanging out. This happens with the rest of the interior too, and it gets everywhere. My CD player refuses to work for at least a day after I bring it into the shop, sometimes the whole stereo won't work after being inside.
Everything plastic (hood prop retaining clips especially) is very brittle and snaps if you look at it funny.
And worst of all, the cars drop massive slush bombs on you when up in the air and have started to warm up a bit.
Phew, okay I'm done.
