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 RepairsTransmission Fluid Drain and Fill Automatic Transmission Unit
Removal ProcedureRaise and support the vehicle. Refer toLifting and Jacking the Vehicle.Remove the fluid drain plug-(1).Drain transmission fluid into a suitable container.Caution:Refer toComponent Fastener Tightening Caution.Install the fluid drain plug-(1) and tighten to12-Y(106-lb-in).Installation ...