Service Bulletins

Service Bulletins give additional technical service information needed to knowledgeably service General Motors cars and trucks.

Each bulletin contains instructions to assist in the diagnosis and service of the vehicle.

    See also:

    Ignition Transmission Lock Check
    While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position. ► For automatic transmission vehicles, the ignition should turn to LOCK/OFF only ...

    Curve Tips
    • Take curves at a reasonable speed. • Reduce speed before entering a curve. • Maintain a reasonable steady speed through the curve. • Wait until the vehicle is out of the curve bef ...

    Head Restraints
    The vehicle's front seats have adjustable head restraints in the outboard seating positions. The vehicle's rear seats have adjustable head restraints in the outboard seating positions. WARNING W ...