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 RepairsNoise While Driver Adjusting Column Steering Wheel and Column
Noise While Driver Adjusting ColumnConditionActionInterference occurs in the column assembly pivot path.Inspect the column jacket for wear patterns. Ensure that themounting and the pivot bolts are properly installed and that thecolumn is properly aligned in the vehicle.The tilt lever assembly is dam ...