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 RepairsBody Waterleak Repair
Warning:If the vehicle interior is exposed to moisture and becomessoaked up to the level of the sensing and diagnostic module (SDM),the SDM and SDM harness connector must be replaced. The SDM couldbe activated when powered, which could cause airbag deployment andresult in personal injury.Depending o ...