I live in Phoenix Arizona where the temperature was 110 today. I was driving down the road and I noticed the power steering went out of my 2008 Tribeca. So I pulled into a parking lot and realized that the rear diff light, battery light, and brake light were all on suddenly on my dash. I shut it off and let it rest for a few minutes. When I started it back up everything was still the same except my air conditioner wasn’t working either. It was 4pm and my usual mechanic just closed. I didn’t know what else to do so I just drove it home. Any ideas what could be wrong with it?