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 RepairsSecondary Air Injection Pipe Replacement Engine Control
Secondary Air Injection Pipe ReplacementCalloutComponent NamePreliminary ProcedureRemove the secondary air injection check valve. Refer toSecondary Air Injection Check Valve Replacement1Secondary Air Injection Pipe Bolt (Qty: 4)Caution:Refer toFastener Caution.Tighten 10-Y(89-lb-in).2Secondary Air I ...