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 RepairsCleanliness and Care
An automobile engine is a combination of many of thefollowing surfaces:MachinedHonedPolishedLappedThe tolerances of these surfaces are measured in theten-thousandths of an inch. When you service any internal enginepart, cleanliness and care are important. Apply a liberal coatingof engine oil to the ...