I have 2013 Suburban Ltz. Last summer, after hitting a bumb, rear access open displayed in the message center. Dome lights off and on, chime off and on and door locks off and on. Hit another bumb, goes back to normal... Over and over. Winter cold months hit... No issues what so ever... The other day, temps hit 90... Driving home, happens again. It's xonstant, mostly when driving over rough road. There have also been a few times, out of nowhere, the alarm will go off. I have researched alot, narrowed it down to BCM, loose or corroded wire or bad ground... I would appreciate any advice or ideas. I'd also like to know where the BCM may be located in the suburban.

 

I’m having the exact same problems with mine! What did you end up figuring out?