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:

    Compass Recalibration
    This display allows for calibrating the compass. See Compass on page 5‑6 for more information. ...

    Engine Compartment Fuse Block
    If the vehicle has a diesel engine, see the Duramax Diesel supplement for more information. If the vehicle is a hybrid, see the hybrid supplement for more information. The Engine Compartment Fuse Bl ...

    Brake Fluid
    The brake master cylinder reservoir is filled with DOT 3 brake fluid. See Engine Compartment Overview on page 10‑6 for the location of the reservoir. There are only two reasons why the brake ...