It's amazing how much a battery malf can effect modern cars. When I had my 2009 G8 GT I was about to head to work, started it up and the damn thing went nuts. The units on the dash changed from Imperial to Metric, the coolant temp gauge pegged to max within like 30 seconds of it running. It had a CEL and every other light lit up, the info screen on the dash had partially displayed text, like a digital watch with a dying battery.
I was still trying to get to work so I went to Autozone and they wouldn't touch it with their "free battery installation", the battery was behind the trunk interior inside the driver side rear fender. Pain in the ass and made me late enough I just took the day off.