Heater shut off and voltage jumped
I was driving home from work this morning and got stuck behind a dumptruck doing 25 up a hill. At the top of the hill I had a short passing lane so I gunned it and passed. I'm not sure if I had the pedal all the way to the floor but there's a good chance I did.
While I was passing the truck my heater shut off. The display went blank like it lost power. It came back on as I let off of the gas. I looked over at my guages and saw the voltage guage dropping back down to normal. I don't know how high it went as I caught it on the way down but it looked like it maxed out or got real close.
After that the airbag light started blinking. I believe it blinked twice. I gave it a little gas and the airbag light started blinking again. After that everything was normal for the rest of the ride. So does anyone have any idea what was going on?