See also:

2011 GMC Sierra 2500HD Review
The "professional grade" brand unveiled the 2011 GMC Sierra Heavy Duty lineup at the 2010 NTEA Work Truck Show. Most of the technical specifications of GM's HD pickups are identical, but ...

Interior Mirror
Vehicles with a manual rearview mirror can be adjusted to see clearly behind the vehicle. Hold the mirror in the center to move it up or down and side to side. To reduce headlamp glare during nighttim ...

Owner Checks and Services
At Each Fuel Stop • Check the engine oil level. See Engine Oil on page 10‑8. Once a Month • Check the tire inflation pressures. See Tire Pressure on page 10‑44. • Inspect the ti ...