This is my third winter in my Camaro..... both you issues sound like they may be warranty, I have never had to turn my car on and off to get the light to work, occasionally when it's really cold -33C or -27F I have had my HUD display read HUD warming up.
As per the wipers something is wrong there I have never had a visibly issue
looks like you have a 2012 so all should be under warranty
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