I have a 2015 GMC Sierra Single Cab 4.3L V6.
Pulled into the parking lot at work this morning with no issues.
Went to back into a parking spot and when I shifted into reverse, EVERYTHING in the cab shut off for about 3 seconds.
When it came back on I had an airbag alarm and a stabilitrak alarm.
I backed into the spot without issue.
As far as I could tell the drive-train was fine.
I have the convenience package which is basically the backup camera, Bluetooth, and On-Star.
Anyone else come across this issue or anything similar?