Recently I have been having issues with my 2011 Avalanche. While driving down the road the following will happen: truck dies and I loose all power (steering, brakes, dash), & the door locks cycle. It's almost like I just shut the truck off while driving. Within a second or two the truck resumes driving like nothing happened without having to do anything. I don't have to restart the truck or shift into neutral and i never get any error codes. This has happened 3x in the last week with every occurrence being about 20 min into the drive. It's happened while cruising, braking, & accelerating. Not sure what to do and hate thinking of taking it in and spending several hundred dollars to not get any resolution. Truck has no modifications & 157k on it. Anyone have an idea or experience this?