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:

    Radio(s)
    Radio with CD (MP3) shown, Radio with Six-Disc CD (MP3) similar The vehicle has one of these radios as its audio system. ...

    When It Is Time for New Tires
    One way to tell when it is time for new tires is to check the treadwear indicators, which will appear when your tires have only 1/16 inch (1.6 mm) or less of tread remaining. Some commercial ...

    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 ...