OnStar Services

See also:

Jump Starting
If the vehicle’s battery has run down, you may want to use another vehicle and some jumper cables to start your vehicle. Be sure to use the following steps to do it safely. WARNING: Batterie ...

Adding Coolant
If you need more coolant, add the proper DEX-COOL® coolant mixture at the coolant recovery tank. CAUTION: Turning the radiator pressure cap when the engine and radiator are hot can allow stea ...

Overview (Radio with CD/DVD and MEM)
A. VOL/ • Turns the system on or off and adjusts the volume. B. FAV • Radio: Opens the favorites list. • MEM: Opens the favorites list. C. Buttons 1 to 6 • Radio: Saves and sele ...