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 RepairsEngine Component Description (LFX)
The High Feature V6 (VIN Code Identifier “3” for both cars and trucks) RPO LFX isa 3.6-Liter VVT-(Variable Valve Timing) engine with direct injection. The LFX hasE85-compatible valves and seats with special materials and coatings that require slightlydifferent service procedures from gasoline va ...