I have 2009 Suburban LT. Last summer, after hitting a bump, rear access open displayed in the message center. Dome lights off and on, chime off and on and door locks off and on. This would happen intermittently during the summer months. Once the temps cooled down, it didn’t happen as often and actually stopped over the winter months. This year, as soon as temps hit 90, it started happening again. It's constant now, and very annoying to drive. There have also been a few times, out of nowhere, the alarm will go off. I have researched a lot, narrowed it down to BCM or bad ground. Plus the truck locks the doors at random times, I have to make sure I don’t leave my keys in the ignition. I replaced my rear latch, wasn’t the problem.
Any help would be greatly appreciated!!