OnStar Services

See also:

If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow
Slowly and cautiously spin the wheels to free the vehicle when stuck in sand, mud, ice, or snow. See Rocking Your Vehicle to Get It Out. If the vehicle has a traction system, it can often help to ...

Tire Terminology and Definitions
Air Pressure: The amount of air inside the tire pressing outward on each square inch of the tire. Air pressure is expressed in pounds per square inch (psi) or kilopascal (kPa). Accessory Weight ...

Adjustable Throttle and Brake Pedal
If your vehicle has this feature, you can change the position of the throttle and brake pedals. This feature is designed for shorter drivers, since the pedals cannot move farther away from the s ...