See also:

Check Gas Cap Light
If your vehicle has this light, it will come on if your gas cap is not securely fastened. ...

Windshield Wiper/Washer
Windshield Wiper/Washer The windshield wiper lever is on the right side of the steering column. With the ignition in ACC/ACCESSORY or ON/RUN, move the windshield wiper lever to select the wi ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if ...