Once a Year

• Starter switch check. See Owner Checks and Services.

• Parking brake and automatic transmission P (Park) mechanism check. See Owner Checks and Services.

• Automatic transmission shiftlock control system check. See Owner Checks and Services.

• Ignition transmission lock check. See Owner Checks and Services.

• Engine cooling system and pressure cap pressure check. Radiator and air conditioning condenser outside cleaning. See Cooling System.

• Exhaust system and nearby heat shields inspection for loose or damaged components.

• Accelerator pedal check for damage, high effort, or binding. Replace if needed.

• If the vehicle has a Tire Sealant and Compressor Kit, check the sealant expiration date printed on the instruction label of the kit. See Tire Sealant and Compressor Kit.

    See also:

    Power Steering Fluid (3.6L V6 Engine)
    See Engine Compartment Overview for information on the location of the power steering fluid reservoir. ...

    Navigation
    OnStar navigation requires the Directions and Connections service plan. Push to receive directions or have them sent to the vehicle navigation screen. Destinations can also be forwarded to ...

    Lumbar Adjustment
    To adjust the lumbar support: ► Press and hold the front or rear of the control to increase or decrease lumbar support. ► Press and hold the top or bottom of the control to raise or lo ...