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:

    Taillamps, Turn Signal, Stoplamps and Sidemarker Lamps
    A. Sidemarker Lamp B. Stoplamp/Taillamp/Turn Signal Lamp To replace one of these bulbs: 1. Open the trunk. See Trunk. 2. Remove the convenience net. 3. Remove the plastic wing nuts retaining th ...

    How to Check Automatic Transmission Fluid (3.9L Engine)
    Because this operation can be a little difficult, you may choose to have this done at the dealer/retailer service department. If you do it yourself, be sure to follow all the instructions here, ...

    Trailer Wiring Harness
    Your vehicle is equipped with a seven-wire trailer towing harness. This harness has a seven-pin universal heavy-duty trailer connector (if equipped with the trailering package) that is attached t ...