Overview & Reviews

The 2009 GMC Sierra 2500HD receives the latest version of OnStar, which includes turn-by-turn navigation. There's also available Bluetooth phone connectivity, and the optional navigation system offers an available real-time traffic feature. Additionally, a back-up camera is now optional on extended and crew cabs, and stability control is standard on all 2500HD models with the standard-length cargo box.

• Prodigious towing and hauling capacities, smooth ride for a big truck, respectable build and materials quality, accurate steering, pleasant seats.

• No side airbags available.

User Reviews:

Showing 1 through 9 of 9.00

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  2009 gmc sierra 2500HD slt - 2009 GMC Sierra 2500HD
  By Brian - February 20 - 2:43 pm

  I have owned my gmc for 2 weeks now and i am glad to say i have made this decision. I have gotten the duramax and sllison combonation and it is unbelievable. I owned a 2002 chevrolet silverado 2500HD and needed to get a diesel. With this type of economy i figured that this is the time to act.We have gotten it for a respectable price. This truck is great to go through the dirt or just to drive around the city.

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  It Seems Like a Keeper - 2009 GMC Sierra 2500HD
  By JCM - March 27 - 12:43 pm

  I just bought a 2009 GM 2500 with the Duramax/Allison combo. Been with Ford all my driving life. So far, a great truck. Excellent power, very quiet and greater than 20 mpg on highway when unloaded. Seems tightly made. 2008 F250 previously; a great truck but physically too large for my needs. GMC offers similar towing performance, better mileage so far and a better ride in a physically smaller package-- with diesel power. Overall, I think the GMC offering is the top overall in the 2500/250 line for daily use/driving. I was not impressed with Dodge quality; my Ford was great but meant for wide open, all day towing. GMC offered the best package with the fewest comprimises. Very happy so far.

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  2500hd - 2009 GMC Sierra 2500HD
  By Drew - May 4 - 7:23 pm

  Was missing my truck and the GMC 2500HD was the fit for what was ailing me.I looked at fords dodges and toyotas and the GMC just looked and felt like it meant business. Ride is good for a HD and the acceleration is great.I seam to be able to achieve approx 18-20 mpg with mixed driving,However this goes down quick when you feel the need to drive spirited.Seats are plenty big enough for 6 foot tall 260pnd man.Sits up higher than most in class and on a wt comes with quite a good bunch of features,XM,Onstar PWR,WIN,LOCK. Mine has heavy duty everything and is pretty much a rolling mountain of solid steel.

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  Great Truck - 2009 GMC Sierra 2500HD
  By Ted - June 9 - 7:23 pm

  Have my new 2500HD 4W for a month now and very pleased. Overall truck is superb and beats the heck out of my older Dodge. Pulls my boat like its not there. Ride is good and mileage is running avg of 17 mpg. I got the split buckets with console and love it. Ditto the comment that tires could be a bit larger. Really very happy with the purchase.

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  Best truck I have seen, tested all - 2009 GMC Sierra 2500HD
  By marconi306 - July 18 - 10:00 am

  I use to own a 2008 Dodge ram 1500 5.7 hemi, and put 40,000 miles on it in less than 2 years. Fairly happy with that truck, and I have not encounter not even one single issue. Looking for more power, and better style, more options/better comfort/better quality, so Ive tested all of them out there. The only one which satisfied my demands was the gms based on manufacture options that was installed like on board info system, back-up camera and sensors, on star system, teptronic 6 speed, auto-lights, shift turn-signal on the mirrors and more cabin space. So far after 9 months Im very very satisfied with the quality and performance. I highly recommend to anyone this brand name gmc.

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  Great Truck - 2009 GMC Sierra 2500HD
  By Bud H - March 27 - 11:56 pm

  This my first 3/4 ton truck. Now have 9000 miles on the clock. I have owned about ten 1/2 ton trucks over the last 40 years. I have owned mostly Ford trucks. GMC has really done well with this truck. It is the 6.0 gasser. I haul a travel trailer and perform routine around the house hauling. The powertrain and load performance difference between the GMC 1500 5.3 and 2500HD is huge. I get better gas mileage pulling a trailer with this truck vs. my 2008 GM 1500 5.3 gasser. I have been getting 17mpg on the highway without a load. 11 mpg pulling a 7000lb trailer on the highway. I believe the GM HD trucks are the way to go with either 6.0 gasser or the Duramax / Allison combination.

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  Would take this over a Ford any day - 2009 GMC Sierra 2500HD
  By JackInDallas - April 27 - 3:53 am

  This is my second GMC HD truck, and the imrpovements are too many to mention. This is by far, the best looking truck on the road. Im averaging around 15 mpg around town and recently got 19 mpg on the highway going 85 with 2800lbs in the bed. GMC builds the best looking, most reliable, most fun to drive pick up trucks on the road.

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  Great truck - 2009 GMC Sierra 2500HD
  By Carl - March 18 - 11:10 am

  Recently purchased an 09 GMC 2500HD with the 6.6L Duramax diesel 4WD. Came from an 08 Toyota Tundra 5.7L and the GMC can not only haul twice the weight and tow 5000lbs more but it also rides smoother when empty. It returns 20mpg unloaded on the highway and the engine note is just enough to remind you that youre driving a diesel but quiet enough to be mistaken for a gasser. The interior is also a nicer place to be than in the Toyota, with more style and materials of a slightly higher quality. The Allison transmission is very smooth and always shifts at the right times. Test drove against the F250 and found the GMC a better all rounder, that stopped and accelerated better. Payload equal.

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  Its big! - 2009 GMC Sierra 2500HD
  By marty - August 13 - 3:50 pm

  My 1st 3/4 ton. I have the 6.0 gas with a 6 speed hydramatic. Everyone told me it would be a gas hog. I get an average of 18 mpg mixed driving. For a gasoline engine, its a torque monster. I think it would pull a mountain. Very powerful acceleration, smooth and quiet for an HD truck. On a bumpy street, you will spill your coffee! It is a big, intimidating looking "AMERICAN" vehicle. Nice standard features like the satellite radio, onStar and integrated trailer brakes. My only complaint is that the cab "creaks" when you hit a harsh bump. This is a truck for real truck lovers. Volvo, Honda and Toyota drivers stay way. This is a real truck, built to do a real trucks job.