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:

    Recommended Fluids and Lubricants
    ...

    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 ...

    Bulb Replacement
    For the proper type of replacement bulbs, see Replacement Bulbs . For any bulb-changing procedure not listed in this section, contact your dealer. ...