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 RepairsBrake Pad Inspection Disc Brakes Brake Pads
Warning:Refer toBrake Dust Warning.Inspect the disc brake pads at regular intervals, or wheneverthe tire and wheel assemblies are removed from the vehicle.If replacement is necessary, always replace disc brake padsin axle sets.Inspect both edges of the disc brake pad frictionsurfaces-(3). The highes ...