Maintenance I

• Change engine oil and filter. See Engine Oil. An Emission Control Service.

• Engine coolant level check. See Engine Coolant (4.6L Engine) or Engine Coolant (3.9L Engine).

• Windshield washer fluid level check. See Windshield Washer Fluid.

• Tire inflation check. See Inflation - Tire Pressure.

• Tire wear inspection. See Tire Inspection and Rotation.

• Rotate tires. See Tire Inspection and Rotation.

• Fluids visual leak check (or every 12 months, whichever occurs first). A leak in any system must be repaired and the fluid level checked.

• Engine air cleaner filter inspection (vehicles driven in dusty conditions only). See Engine Air Cleaner/Filter.

• Brake system inspection (or every 12 months, whichever occurs first).

    See also:

    Using this Manual
    To quickly locate information about the vehicle, use the Index in the back of the manual. It is an alphabetical list of what is in the manual and the page number where it can be found. ...

    Security
    OnStar provides services like Stolen Vehicle Assistance, Remote Ignition Block, and Roadside Assistance, if the vehicle is equipped with these services. OnStar can unlock the vehicle doors r ...

    How to Detect a Tamper Condition
    If  is pressed and the horn sounds, an attempted break-in occurred while the system was armed. If the alarm has been activated, a message will appear on the DIC. See Anti-theft Alarm ...