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 the vehicle is equipped with the Tire Pressure Monitoring System. If a diagnostics check is needed between e-mails, push OnStar Additional Information, and an Advisor can run a check.

    See also:

    Steering Wheel Adjustment
    Steering Wheel Adjustment The tilt lever is located on the lower left side of the steering column. To adjust the steering wheel: 1. Hold the steering wheel and pull the lever. 2. Move the stee ...

    Removing the Flat Tire and Installing the Spare Tire
    1. Do a safety check before proceeding. See If a Tire Goes Flat on page 10‑65 for more information. 2. For vehicles with a wheel cover or center cap, pull the cover or center cap away from ...

    Power Mirrors
    Vehicles with outside power mirrors have controls located on the driver door. To adjust each mirror: 1. Press (A) or (B) to select the driver or passenger side mirror. 2. Press the arrows on the ...