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 RepairsFront Tow Eye
Carefully open the cover by using
the small notch that conceals the
front tow eye socket.
Install the tow eye into the socket by
turning it clockwise until it stops in a
horizontal position.
When the tow eye is removed,
reinstall the cover with the notch in
the original position. ...