OnStar Services

See also:

When It Is Time for New Tires
Factors such as maintenance, temperatures, driving speeds, vehicle loading, and road conditions affect the wear rate of the tires. Treadwear indicators are one way to tell when it is time for new t ...

Door Locks
To lock or unlock the doors: • From inside the vehicle, use the door lock knob or the power door lock controls, pull once on the door handle to unlock it, and a second time to open it. • ...

Head Restraint Removal and Reinstallation
The rear outboard head restraints can be removed if they interfere with the proper installation of the child restraint. To remove the head restraint: 1. Partially fold the seatback forward. ...