Lumbar Adjustment

Power Lumbar

Eight-Way Power Seat Shown, Four-Way Similar

Eight-Way Power Seat Shown, Four-Way Similar

A. Lumbar Switch

If available, press and hold the front or rear of the switch (A) to increase or decrease lumbar support. Release the switch when the seatback reaches the desired level of lumbar support.

    See also:

    Automatic Transmission
    The automatic transmission shift lever is located on the console between the seats. P (Park): This position locks the front wheels. Use P (Park) when starting the engine because the vehicle can ...

    Low Fuel Warning Light
    This light, under the fuel gauge, comes on briefly while the engine is being started. This light and a chime, if the vehicle is equipped with a radio, comes on when the fuel tank is low on fuel. T ...

    Roadside Assistance Program
    U.S.: 1-888-881-3302 TTY Users (U.S.): 1-888-889-2438 Canada: 1-800-268-6800 Mexico: 01-800-466-0801 As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance program. ...