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:

    Maintenance Replacement Parts
    Replacement parts identified below by name, part number, or specification can be obtained from your dealer. If your vehicle has a diesel engine, see the Duramax diesel supplement for more informa ...

    How to Check Power Steering Fluid
    Notice: Extremely small amounts of contamination can cause steering system damage and cause it to not work properly. Do not allow contaminants to contact the fluid side of the reservoir cap/ dipstick ...

    Easy Exit Driver Seat
    This feature can move the seat rearward to allow extra room to exit the vehicle. : Press to recall the easy exit seat position. The vehicle must be in P (Park). See Memory Seats on page 3‑7 a ...