Driving my surburban, my instrument panel and DIC started acting strange. The dials were acting like when you first start on the truck. Dials go to the right, then left , then normal, then dials go full left like turning off truck. DIC goes blank other lights come on. It is like the truck is off. But the truck is still running. I have power steering and brakes. Then all starts working again. Next day I start it, things go crazy. Now I can't turn it off. Then it shutoff like I remote started it, but I didn't. Battery was replace 2 years ago. I do mostly highway driving. Love this truck. I have all Maintenance done. Any one see this. I think bad ground...

 

I'd clean all the ground connections, and all positive connections from the battery.