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 RepairsCatalytic Converter Heat Shield Replacement (LFX) Exhaust Exhaust Heat Shields
Catalytic Converter Heat Shield ReplacementCalloutComponent NamePreliminary ProcedureRaise and support the vehicle.Refer toLifting and Jacking the Vehicle1Catalytic Converter Nuts (Qty:-2)Caution:Refer toFastener Caution.ProcedureClean and inspect the studs on the engine cylinder head,replace as nec ...