Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000mi.Have underbody flushing service performed. See "Underbody Maintenance" inExterior Care.
Power Mode Description and Operation
GMLAN and Media Oriented Systems Transport (MOST) Wiring RepairsBall Joint Inspection Suspension Ball Joints
Special Tools J-8001 Dial Indicator SetNote:The vehicle must rest on a level surface.The vehicle must be stable. Do not rock the vehicle on the floor stands.Raise and support the vehicle. Refer toLifting and Jacking the Vehicle.Clean and inspect the ball joint seal for cuts or tears. If the ball jo ...