Overview & Reviews

On extended and crew cab models, a power sunroof is a new option, and it includes a HomeLink universal transmitter and deluxe overhead console.

• Powerful engine lineup, multiple drivetrain configurations, substantial towing and hauling capacities.

• Spotty build quality, mediocre design and interior materials.

User Reviews:

Showing 21 through 30 of 35.00

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  Opinion on recent Used purchase 6.6 Duramax - 2005 GMC Sierra 2500HD
  By randy012796 - July 24 - 9:31 am

  Just bought this truck from my neighbor. 58,000 miles on a 8 year old truck. It is box stock and clean. I cleaned it up even more. I have never owned a diesel before or a GMC. This diesel is Awesome! GMC has a slightly better finish than the Silverado I sold. We tow a 33ft Keystone Ultra lite camper thats 6,800lbs like a dream. There all expensive and I dont know why the comman man would spend the money on a new one. Enjoy shopping and go clean used. Some mods in the future, good deals out there on used perf. parts

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  Great - 2005 GMC Sierra 2500HD
  By greg - September 17 - 8:56 am

  I have had several of the old classic 2500 4WDs and this one is by far the best truck I have ever owned. The styling is so much nicer than Chevy. Only one little problem with the transmission so far. All my previous GMCs spent a lot of time in the shop for warranty work, but not this one! Build quality seems so much better now.

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  My GMC - 2005 GMC Sierra 2500HD
  By Tim Webb - July 21 - 4:06 am

  Really like this truck. However, would like to see further advancements in the interior design.

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  The time tested truth - 2005 GMC Sierra 2500HD
  By dplind - August 23 - 10:00 am

  Ok lets start out that I have owned them all and I have owned a lot of trucks. My business is repairing trucks of all sizes and brands for large and small owners. I drive what I dont have to fix! Period! The GMC gives me power to pull my toy hauler and comfort on the long vacations. looks great and never lets me down

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  2005 GMC 2500HD SLE Crew Cab SB 4WD 6.6L - 2005 GMC Sierra 2500HD
  By Larry Sinclair - July 11 - 7:30 am

  This 6.6L turbo with the 5 speed auto trans performs excellently whether driving empty or pulling a 30 RV. Interior is very plush (all the bells and whistles)and extremely quiet and comfortable on the road. The dash layout and field of vision behind the wheel is excellent. Added a bedrug and Pace Arrow bed-locker with power tail gate for security and improved MPG. Added ONKI brush guard for added protection from Colorado wildlife. This is a real truck for all occassions with added luxury and comfort!!! For 06 the manufacture has added 30 hp and 6 speed auto trans to an already outstanding rig.

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  GMC SIerra HD Duramax - 2005 GMC Sierra 2500HD
  By Richard - May 9 - 7:43 pm

  This truck pulls a 30 foot RV travel trailer with absolutely no problem. Using the tow button helps slow everything down with ease. This truck is much more quieter than Dodge or Ford. It has lots of power and looks great, unlike its competition.

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  GMC Sierra 2500HD - 2005 GMC Sierra 2500HD
  By Stew - May 8 - 9:20 am

  I have always wanted to own a new vehicle so last fall I decided to purchase my all time favorite vehicle, the GMC Sierra. I bought it over the internet because I knew what I wanted, I picked up the vehicle and drove it home. I was amazed at the lack of HP and gas mileage. Since this was my first new vehicle I didnt know all about the break in process. It took 2 weeks for the HP to show up and the fuel economy to increase. In the meantime I was entertained by the XM Radio that will be an option in every vehicle I purchase from now on. The interior of GM vehicles still have the working mans look to it, but it is hiding an amazing array of features.

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  Love of my life - 2005 GMC Sierra 2500HD
  By Roger - April 23 - 7:23 am

  Love the truck. Drove the Ford and the GMC and fell in love. Drives sweet. Tow a 10,000 lbs 5th wheel and dont even know it is there. Transmission is great uphill and down. Bose stereo is great. Heated leather seats and dual climate control are sweet. Would recomend this truck to anyone.

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  Nice truck - 2005 GMC Sierra 2500HD
  By Frank Bigelow - October 31 - 9:20 am

  I love my truck so far it has a lot of power and it rides awesome. It is very comfortable and quiet inside. I would recommend it.

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  Good, but not great - 2005 GMC Sierra 2500HD
  By candleman - October 10 - 11:50 pm

  This diesel was an upgrade from a gas Dodge RAM1500. Pulling a 7,000lb trailer now seems effortless. Turbocharger takes a long time to engage and gas mileage wasnt as good as Id expected for a diesel- about 12.5 pulling trailer which is disappointing since over 20 without. Just had 3 injectors replaced under 100K Duramax warranty which I believe was a known problem in all GM diesels from 2002-2006. No recall, of course! No significant change in power or mileage with the new injectors. I hate that GM always adds a $95+ "diagnostic fee" for the computer hookup with any service. Also- computers trip timer hasnt worked since purchase and the stereo speaker sound is absolutely awful.