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:

    Fluids
    Proper fluid levels and approved fluids protect the vehicle’s systems and components. See Recommended Fluids and Lubricants for GM approved fluids. - Engine oil and windshield washer fluid ...

    Special Application Services
    - Vehicles with manual transmissions: Every two years drain, flush, and fill clutch hydraulic system. - Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3, ...

    Interior
    Five occupants get to enjoy soft all-leather seats. Offerings include heated and ventilated seating and a heated steering wheel. The STS features genuine eucalyptus wood and aluminum trim. Eight ...