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 Camshaft Drive Chain Shoe Installation - Left Side Valvetrain Camshaft
Ensure that the left secondary camshaft drive chainshoe-(2) is being installed.Position the left secondary camshaft drive chain shoe.Caution:Refer toFastener Caution.Install the secondary camshaft drive chain shoe bolt andtighten to25-Y(18-lb-ft). ...