Special Application Services

  • Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi.
  • Have underbody flushing service performed once a year.
    See also:

    Lumbar Adjustment
    Lumbar Adjustment If available, press and hold the front or rear of the control to increase or decrease lumbar support. To raise or lower lumbar support, press and hold the top or bottom of ...

    Manual Seats
    WARNING: You can lose control of the vehicle if you try to adjust a manual driver’s seat while the vehicle is moving. The sudden movement could startle and confuse you, or make you push a ped ...

    Transferring Service
    Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has chan ...