See also:

How the System Works
When the vehicle is shifted into R (Reverse) the front and rear sensors are automatically turned on. After the vehicle is shifted out of R (Reverse), the rear sensors are turned off and the front ...

Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five ...

Tumbling the Third Row Seat
To tumble the seat: 1. Open the liftgate to access the controls for the seat. 2. Make sure the headrests are completely lowered and there is nothing under, in front of, or on the seat. 3. Fold th ...