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 ...

Passenger Safety Belt Reminder Light
When the vehicle is started, this light flashes and a chime may come on to remind front passengers to fasten their safety belt. Then the light stays on solid until the belt is buckled. For more inf ...

Driver Safety Belt Reminder Light
There is a driver safety belt reminder light on the instrument panel cluster. When the vehicle is started, this light flashes and a chime may come on to remind the driver to fasten their safety b ...