OnStar Services

See also:

Fuel Additives
To provide cleaner air, all gasolines in the United States are now required to contain additives that help prevent engine and fuel system deposits from forming, allowing the emission control system to ...

Adding Washer Fluid
Open the cap with the washer symbol on it and add washer fluid until full. See Engine Compartment Overview on page 10‑6 for reservoir location. Notice ○ When using concentrated washe ...

If the Vehicle Is Stuck
Slowly and cautiously spin the wheels to free the vehicle when stuck in sand, mud, ice, or snow. If the vehicle has a traction system, it can often help to free a stuck vehicle. Refer to the vehicle' ...