Special Application Services

• Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi.
• Have underbody flushing service performed once a year.

    See also:

    Air Vents
    Use the air outlets, located in the center and on the side of the instrument panel, to direct the airflow. Use the thumbwheels located near the center air outlets, to open or close off the airflow ...

    Adjusting the Speakers (Balance/Fade) (AM-FM Radio and AM-FM Radio with CD)
    To adjust the balance or fade: 1. Press or press the knob until the speaker control label displays. 2. To adjust the setting, do one of the following: • Turn the knob. • Press either SEEK ...

    OnStar Personal Identification Number (PIN)
    A PIN is needed to access some of the OnStar services, like Remote Door Unlock and Stolen Vehicle Assistance. You will be prompted to change the PIN the first time when speaking with an Advisor. To ch ...