What method did you use to turn on the heated side mirrors? In order to power the mirrors you have to turn on the rear defroster. That info is in your owner's manual along with the info about your fog lights not working with the high beams...
You've been around this forum for a while I'm surprised that you don't know this stuff.
Touring has no heated mirrors. So option is to Clean and apply Rainx / Wax.
CX5 is not the best when apocalyptic weather strikes. 2.5 is very rough till it warms up, I can totally believe motor mount issues in sub 0 temperatures. HVAC could have been stronger. Comparing to the 2.5 Camry - both the engine and HVAC with heated mirrors on base model are a welcome feature.
Still over to course of 3 odd years the Camry has lost on repairs:
Exhaust heat shield metal on metal corrosions - $150
Center touch screen bad - goodwill from Toyota still had to pay $200 out of total bill.
Now blower motor is humming, the fan has no dirt but it seems the motor is bad - $?? Need to evaluate what this is going to cost DIY.
CX5: TSB took care of rear brakes other than that $0. Keeping fingers crossed CX5 would hit 100K atleast with 0 repairs.