Dean Fischbeck

I drive a 2020 Sierra 3500HD Denali 4X4. Used mainly for towing a 5th wheel. We purchased the GM rear-view trailer camera and had the RV dealer install it. It works fine, but this has happened twice (out of maybe 40 hitchups) . . . During the process of hitching up, everything works fine. One of the last things we do is turn the engine off, plug the rear-view trailer camera in, and then restart the engine. Cameras all work, we're good to go. But then after we shift into gear, ALL the cameras go dead (except for the rear-view mirror). We turn the truck off and restart . . . doesn't help. We call our GMC salesman who helpfully suggests that we disconnect the battery, wait 15 seconds, and then reconnect so the system can reboot. This works and we're off. He also intimated that a software update from GM might fix the issue. This has only happened during hitching up, never during an unhitched start-up. Today we took the truck to the GMC dealer for routine maintenance and the Service guy said he is unaware of a bulletin, notice, or rumor regarding camera failure. Has this happened to you?