Vehicle and Power Issues

OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.

    See also:

    Engine Air Cleaner/Filter
    If the vehicle has a diesel engine, see “Pickup Models” under “Engine Air Cleaner/Filter” in the Duramax® Diesel Supplement for the correct inspection and replacement procedures. See Engine ...

    Owner Checks and Services
    At Each Fuel Stop ○ Check the engine oil level. See Engine Oil on page 10‑10. Once a Month ○ Check the tire inflation pressures. See Tire Pressure on page 10‑51. ○ In ...

    Steering Wheel Adjustment
    To adjust the steering wheel: 1. Pull the lever (A) down. 2. Move the steering wheel up or down. 3. Pull or push the steering wheel closer or away from you. 4. Pull the lever (A) up to lock the ...