OnStar

See also:

Engine Coolant
The cooling system in the vehicle is filled with DEX-COOL® engine coolant mixture. See Recommended Fluids and Lubricants and Maintenance Schedule for more information. The following explains ...

Removing the Flat Tire andInstalling the Spare Tire
1. If your vehicle has a wheel cap that covers the wheel nuts, position the chisel end of the wheel wrench in the notch and pry it off. 2. Using the wheel wrench, loosen all the wheel nuts. ...

Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of damage caused by electrical problems. To ch ...