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.
See also:
Owner Checks and Services
At Each Fuel Stop
○ Check the engine oil level. See Engine Oil on page 10‑10.
Once a Month
○ Check the tire inflation pressures. See Tire Pressure on page 10‑51.
○ In ...
Online Owner Center
GMC Owner Center (U.S.) www.gmcownercenter.com
Information and services customized for your specific vehicle — all in one convenient place.
• Digital owner manual, warranty information, and more ...
Fuses and Circuit Breakers
If the vehicle is a hybrid, see the hybrid supplement for more information.
The wiring circuits in the vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusibl ...





