OnStar

See also:

Checking Coolant
The vehicle must be on a level surface when checking the coolant level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, do not ...

Vehicle Personalization
The audio system controls are used to access the personalization menus for customizing vehicle features. Not all features are available on every vehicle. Only the features available on a particula ...

If the Vehicle Is Stuck
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” later in this section. If the vehicle has a traction system ...