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For 2014, the gasoline-powered GMC Sierra gets a new standard 4.10 rear axle. The previous 3.73 axle remains optional. Also new are an available spray-in bedliner and the expansion of the bi-fuel gas/CNG 6.0-liter V8 to the 2500 model line.
For 2013, extended-cab 2500 HD models equipped with the standard 6.0-liter V8 can be had with a new bi-fuel system that accommodates both gasoline and compressed natural gas (CNG). Two new exterior colors (Sonoma Red Metallic and Heritage Blue Metallic) round out the changes.
The 2012 GMC Sierra HD sees a few improvements for this model year. A new hard-drive navigation radio is offered, while Work Truck models gain cruise control and lockable spare tire. Denali trims gain as standard equipment heated and cooling front seats, a heated steering wheel, a rearview camera and, on 3500 dually models, 17-inch polished wheels.
The 2011 GMC Sierra HD's Duramax turbo diesel's power, torque, maximum conventional and fifth-wheel tow and payload ratings are best in class. Its fifth-wheel tow capability is 21,700 pounds, it can tow up to a 17,000-pound conventional load with its factory-installed hitch, and the Duramax is fully B20 biodiesel compatible.
Technical upgrades include the addition of Bluetooth hands-free communication technology to OnStar 8.0, as well as Destination Downloads for vehicles equipped with DVD navigation. Extended and Crew Cab trims offers a rear backup camera, while a stability enhancement system is made standard on the 2500 HD with single rear wheels.
When you need a full-size truck to haul heavy objects, the muscle provided by the 2015 GMC Sierra HD will be more than sufficient. Like the 2015 Chevrolet Silverado 2500 and 3500 HD, the Sierra HD is General Motors' other answer the Ford F-Series and Ram HD trucks. Both the Sierra 2500 and 3500 HD offer you the choice of a 6.0-liter V8 gasoline engine or a 6.6-liter Duramax turbodiesel V8, as well as rear-wheel-drive and 4-wheel-drive configurations. The choices go on from different cab configurations and bed lengths to trim levels. Even though it's not the best heavy-duty truck in its class, the Sierra HD offers plenty of muscle to get the job done.
By Stik on Saturday, October 12, 2013
I own this car - My approximate mileage is 800overall rating 7 of 10rating details
Likely to recommend this car? (1-10): 1
"Truck is stylish. Very quiet. Very little road noise. Pleasure to drive during the day. Has lots of nice features. HOWEVER, the headlights are absolutely terrible. Far too dim. Extremely hard to see on back roads. Wish I would a known this prior to purchase. Previous models have great LIGHTS. No excuse for this other other than poor engineering."
11 people out of 12 found this review helpful
By Josh on Friday, September 13, 2013
I own this car - My approximate mileage is 175overall rating 10 of 10rating details
Pros: "Ride, Quiteness, handling, technology"
Likely to recommend this car? (1-10): 10
"Traded my 2011 Silverado for this 2014 Sierra Crew Cab SLT and what a difference. It's like a luxury vehicle inside. Smooth and extremely quite ride. It doesnt even feel like your driving a truck. And I can beat my buddies ECOBOOST on this V8 with a better tow rating. The only negative would say is with the 3.42 rear end the gas miledge isn't much better than the 11 but it is still being broken in so I'll give it some time."
4 people out of 5 found this review helpful
By 7X43 on Thursday, December 05, 2013
I own this car - My approximate mileage is 6,100overall rating 7 of 10rating details
Pros: "well thought out console and itrior storage space"
Cons: "lack of interior and exterior lighting"
Likely to recommend this car? (1-10): 5
"Very quiet ride. Nice looking. Steps in rear bumper great idea. Sharp looking interior. Great gas mileage. 19.6 mpg on 2800 mile trip carrying 900 lbs cargo. Engineers overlooked some small but important things. Projector headlights are terrible, no peripheral lighting on hi beams, interior dome lighting is bad, outside temp reading doesn't update frequently enough, speakers in front doors stick out too far and get kicked when exiting, piping on leather seats is very irritating when exiting or entering frequently, no provision to turn off auto door locks, infotainment screen is too bright for night driving and cannot be dimmed independently from the dash lighting, interior is super quiet but I still have to listen to the key fob rattle against the steering column on uneven roads, side mirrors are too small and can't see rear wheels with them, steering wheel mounted controls are no longer at your fingertips but are now smaller and mounted higher up and can't be felt with gloves on. Less vision out windshield compared to previous model. I use this truck for work and a lot of times at night with entry and exit at least 50 times a day. This truck is not as convenient or comfortable as the previous model."
13 people out of 17 found this review helpful