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:

    Headlamp Aiming
    The headlamp aiming system has been preset at the factory. If the vehicle is damaged in an accident, the aim of the headlamps may be affected and adjustment may be necessary. It is recommend ...

    If the Off Indicator Is Lit for an Adult-Size Occupant
    If a person of adult-size is sitting in the front outboard passenger seat, but the off indicator is lit, it could be because that person is not sitting properly in the seat. Use the follow ...

    Power Reclining Seatbacks
    The front seats have power reclining seatbacks. Use the vertical power seat control located on the outboard side of the seat to operate them. • To recline the seatback, press the control ...