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:

    If You Cannot See the HUD Image When the Ignition Is On
    • Is anything covering the HUD lens? • Is the HUD dimmer setting bright enough? • Is the HUD image adjusted to the proper height? • Are you wearing polarized sunglasses? • Still no HUD i ...

    Safety System Check
    Now and then, check that the safety belt reminder light, safety belts, buckles, latch plates, retractors, and anchorages are all working properly. Look for any other loose or damaged safety belt s ...

    Folding the Seatback
    To fold the second row seatbacks: 1. Remove anything on or under the seat. 2. Place the armrest in the upright position, and unfasten the safety belt. 3. Pull forward on the reclining seatback stra ...