2010 GMC Sierra 2500

Change year or car

Change year or car


starting MSRP

2010 GMC Sierra 2500
2010 GMC Sierra 2500

Key specs

Base trim shown

Pickup Truck

Body style


Seating capacity

220.2” x 76.3”


Rear-wheel drive



The good:

  • Allison six-speed transmission
  • 660 pounds-feet of Duramax torque
  • Nice tow mirrors
  • 4x4 models have independent front suspension
  • Integrated brake controller
  • Dually fenders are steel, not fiberglass or composite

The bad:

  • No second-row captain's chairs available in crew cab
  • No side-impact or side curtain airbags

4 trims

Starting msrp listed lowest to highest price

Wondering which trim is right for you?

Our 2010 GMC Sierra 2500 trim comparison will help you decide.

See also: Find the best Pickup Trucks for 2023

Notable features

  • Hands-free Bluetooth connectivity available
  • Backup camera available on extended and crew cabs

2010 GMC Sierra 2500 review: Our expert's take

Vehicle Overview
While mechanically identical to the Chevrolet Silverado heavy-duty models, GMC positions the Sierra 2500HD/3500HD to appeal to a more upscale customer. There’s a little more flash on the outside and a little more elegance on the inside. But the real selling point for the Sierra is the same as the Silverado: the combination of a Duramax diesel and Allison six-speed automatic transmission.

Trims for the Sierra 2500 heavy-duty trucks include Work Truck, SLE and SLT. All HD trucks can be ordered in two- or four-wheel drive. The standard powertrain is a 6.0-liter gas engine and six-speed Hydra-Matic automatic transmission, while the diesel is optional. GM says the 2500HD and 3500HD can tow up to 13,000 pounds with the diesel engine and a conventional hitch. The maximum towing capacity with a fifth-wheel hitch is 16,700 pounds; payload varies between 2,331 pounds and 5,309 pounds, depending on the model.

New for 2010
There are no significant changes for 2010.

The Sierra heavy-duty trucks are visually distinct from their Chevy cousins and Sierra 1500 models. The grille opening is more pronounced, and the headlamps and hood are different. Even the dually has integrated, hydroformed steel fenders. Fog lamps on the SLT models are set into the bumper for an upscale appearance.

Exterior features include:

  • Available moonroof on extended and crew cabs
  • Available EZ Lift tailgate
  • Tow mirrors available
  • Side, roof markers on dually models

The GMC interior themes found on the Sierra 1500 carry over to the heavy-duty models. The Work Truck and SLE trims feature more work details, while the SLT is more luxurious. The most obvious difference is the dash design. The Work Truck has a double glove box and the SLT has a single glove box. The Work Truck has armrest storage built into the 40/20/40-split bench seat, and there’s also a lockable storage bin large enough for a laptop under the center-seat section. GMC offers a wide range of audio options with a Bose sound system available in premium models.

  • Available rear-seat DVD player
  • Power-adjustable foot pedals
  • Available power rear window on extended and crew cabs
  • Stadium-style seating in second row

Under the Hood

  • 360-horsepower, 6.0-liter V-8, with iron block and aluminum cylinder head, cam-in-block, two valves per cylinder, making 380 pounds-feet of peak torque mated to a six-speed Hydra-Matic automatic transmission
  • 365-hp, 6.6-liter V-8 diesel, with iron block and aluminum cylinder head, cam-in-block, four valves per cylinder, making 660 pounds-feet of peak torque mated to a six-speed Allison automatic transmission

GM’s electronic stability control system, StabiliTrak, is available on select 2500HD models. Side-impact and side curtain airbags are not available. Other safety features include:

  • Dual front airbags standard
  • Ultrasonic rear parking assist available
  • Four-wheel antilock brakes

Consumer reviews

Rating breakdown (out of 5):
  • Comfort 4.4
  • Interior 4.0
  • Performance 4.4
  • Value 4.2
  • Exterior 4.8
  • Reliability 4.0

Most recent consumer reviews


Great all-purpose Truck

We bought our GMC 2500 HD gas 6.0L extended cab last spring to pull our 9k lb 5th wheel. We pulled it for about 6k miles with abslutely no issues. It pulls great, a bit slow off the line, but it will get going if I put my foot down -no issues on the highway. It'll do 70 all day long pulling our portable house. We get about 8 MPG towing and 17 empty in rural areas. No doubt the diesel would haul better and get better MPG, but for an extra 30-40 cents/gal, that doesn't make sense for us. This truck has much better fit and finish than older GM vehicles we've owned. In fact this our 1st GM since our 2000 GMC Safari (that was a money pit). We love the look of the extended cab with 180° rear doors. The rear seat is the same size as the newer 4 door. To us the truck looks classy. It has style and rugged looks without being over the top. The next 2 generations are just stupid big. Seems like the bigger the grille the more compensation. Basically, I highly recommend this generation 2500. It does everything we need it to do and looks good doing it.


Only owned for a week, but thrilled so far!

This truck had almost everything I was looking for. It was actually a year OLDER than my current truck, but had 50,000 LESS MILES on it! It came with a gooseneck hitch (which I really needed and did not want to have to install), remote start, 4 wheel drive, and many other "niceties". Only had it for a week, but so far so good!


Best truck I have ever owned!

Powerful and great road manners. Towing a breeze. Head turner. Fit the whole family comfortably and great for road trips. Surefooted in the snow and diesel mileage was better than expected. Averaged 19 around town and better on the highway.

See all 5 consumer reviews


New car and Certified Pre-Owned programs by GMC
New car program benefits
36 months/36,000 miles
36 months/36,000 miles
60 months/100,000 miles
Roadside assistance
60 months/100,000 miles
Certified Pre-Owned program benefits
Maximum age/mileage
5 model years or newer/up to 75,000 miles
Basic warranty terms
12 months/12,000 miles bumper-to-bumper original warranty, then may continue to 6 years/100,000 miles limited (depending on variables)
6 years/100,000 miles
Dealer certification required
172-point inspection
Roadside assistance
View all cpo program details

Have questions about warranties or CPO programs?

Compare the competitors