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 RepairsFuel Tank Replacement (FWD) Engine Control
Removal ProcedureWarning:Do not allow smoking or the use of open flames in the areawhere work on the fuel or EVAP system is taking place. Anytime workis being done on the fuel system, disconnect the negative batterycable, except for those tests where battery voltage isrequired.Ensure that the fuel l ...