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 RepairsLiftgate Adjustment Panels
Note the original position of the liftgate latchstriker.Remove the striker.Loosen the hinge-to-roof panel bolts for forward or rearwardadjustments.If adjusting the hinge to roof panel bolts, lower the rearheadliner as needed.Loosen the liftgate-to-hinge bolts for up and downadjustment.Move the liftg ...