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 RepairsDanger
Danger:In order to reduce the chance of death, personal injuryand/or property damage, carefully observe the instructions thatfollow:The service manuals of General Motors are intended for use byprofessional, qualified technicians. Attempting repairs or servicewithout the appropriate training, tools, ...