OnStar Services

See also:

Liftgate
Power Liftgate Vehicles with an automatic transmission must be in P (Park) and a manual transmission must be in Neutral to operate the power liftgate. To open the liftgate from inside, s ...

Park Brake and P (Park) Mechanism Check
WARNING! When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of the vehicle in case ...

Floor Mats
WARNING If a floor mat is the wrong size or is not properly installed, it can interfere with the pedals. Interference with the pedals can cause unintended acceleration and/or increased stopping d ...