See also:

Roadside Assistance Program
As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance program. See Roadside Assistance Program (U.S. and Canada) on page 13‑7 or Roadside Assistance Program (M ...

Trailer-Tow Mirrors
If the vehicle has towing mirrors, they can be adjusted for a clearer view of the objects behind you. Manually pull out the mirror head to extend it for better visibility when towing a trailer. Th ...

Special Application Services
• Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi. • Have underbody flushing service performed once a year. ...