If the vehicle is equipped with OnStar and has an active subscription, additional data may be collected through the OnStar system. This includes information about the vehicle's operation; collisions involving the vehicle; the use of the vehicle and its features; and, in certain situations, the location and approximate GPS speed of the vehicle. Refer to the OnStar Terms and Conditions and Privacy Statement on the OnStar website.
See OnStar Additional Information.
Park Brake and P (Park) Mechanism Check Automatic Transmission Unit Parking Lock Mechanism
Warning:When you are doing this check, the vehicle could begin tomove. You or others could be injured and property could be damaged.Make sure there is room in front of the vehicle in case it beginsto roll. Be ready to apply the regular brake at once should thevehicle begin to move.Park on a fairly s ...