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:

    StabiliTrak® System
    The StabiliTrak system assists with directional control of the vehicle in difficult driving conditions. The system is on when the vehicle is started. ○ To turn off both Traction Control and S ...

    Hydroplaning
    Hydroplaning is dangerous. Water can build up under the vehicle's tires so they actually ride on the water. This can happen if the road is wet enough and you are going fast enough. When the vehicle is ...

    Starting the Engine
    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. Notice: Do not try to shift to ...