Back up camera issues!!
Free FIX I have had the same issue on a 2007 Chevy Avalanche. There is a wiring harness connector under the vehicle that goes to the tailgate. Mine was on the drivers side and close to the rear. I disconnected it and noticed corrosion on one of the pins. Sprayed PB Blaster in it, connected and disconnected it a few times to clean connectors and BAM!! Works great! Be careful when disconnecting, dirt and debris collects and will fall in your eyes!


