Warranty

OnStar equipment may be warranted as part of the new-vehicle limited warranty. The manufacturer of the vehicle furnishes detailed warranty information.

    See also:

    Recommended Fluids andLubricants
    Fluids and lubricants identified below by name, part number, or specification may be obtained from your dealer. ...

    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 ...

    Engine Cooling When Trailer Towing
    The cooling system may temporarily overheat during severe operating conditions. See Engine Overheating . ...