2015 Silverado 2500 HD LT model with io4 my link radio. I bought the tailgate oem camera from a guy here locally in Norcal along with the reprogrammed hmi. With the new hmi, i get the backup grid for a second before it goes black as expected when no camera is installed. Today I installed the camera and plugged it in to the middle port in the 5 port plug down by the spare tire. The camera gave me a crystal clear picture for about 15 seconds and then I just got the "service rear vision system" warning on the screen. I disconnected, then reconnected the plugs but camera still doesn't display on screen. I called the guy who sold me the parts and he didn't have an answer other than maybe the camera or harness was faulty. Strange that it worked for a few seconds then not at all.
Is this ALSO going to require the dealer to "rewrite VCO" to indicate vehicle now equipped with rear vision camera? Or was that actually done when he reprogrammed the hmi using my vin#