Air Bag Light On problems of the 2017 GMC Acadia

I started noticeing when I open my glove box or had someone seating in the passager seat my airbag light would turn on with the engine running. The light would turn on and beep stating service air bag. The light would sometimes stay on or turn off. Once I took my Acadia to the dealership and they ran a bunch of test. At first they couldn't determine what the problem was. They determine it was the airbag and that it needed to be replaced. The back seat fastener on the middle seat failed to lock the buckle in place. Had to replace this.

The airbag light on this car has been going off and on since it was purchased in October 2017. Every couple of months there was another problem with the airbag. The dealership could never diagnose the problem. They initially claimed the sensors were unplugged as a result of moving the seat back and forth. Now that the car is out of warranty, they want to diagnose the problem as a faulty sensor. Additionally, the automatic transmission shift to park issue is occurring. This is when the car is parked and the transmission shifted into park, however, an error indicator displays saying the car needs to be shifted to park to turn off, even though it is in park. The dealership replaced the manifold 2 years ago and now the problem is resurfacing.