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:

    ENGINE OVERHEATED — IDLE ENGINE
    This message displays when the engine coolant temperature is too hot. Stop and allow the vehicle to idle until it cools down. ...

    Ride Control System Messages
    ALL WHEEL DRIVE OFF This message displays when the All-Wheel Drive (AWD) System has been turned off. See All-Wheel Drive. SERVICE ALL WHEEL DRIVE SYSTEM This message displays when there i ...

    Reporting Safety Defects toGeneral Motors
    In addition to notifying NHTSA (or Transport Canada) in a situation like this, we certainly hope you will notify us. Please call us at 1-800-521-7300, or write: Buick Customer Assistance Cente ...