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 - Right Side Valvetrain Camshaft
Ensure that the right secondary camshaft drive chainshoe-(1) is being installed.Position the right secondary camshaft drive chainshoe.Caution:Refer toFastener Caution.Install the secondary camshaft drive chain shoe bolt andtighten to25-Y(18-lb-ft). ...