Overview & Reviews

Quadrasteer is no longer available on 2WD models, standard wheel sizes have been bumped up to 17 inches and, on extended and crew cab models, a power sunroof that includes HomeLink and a deluxe overhead console in now optional. GMC takes a step backward this year with the return of rear drum brakes, as opposed to last year's four-wheel disc setup. Big changes for the Denali this year -- Quadrasteer is no longer available, and the Denali is now a crew cab model only. A gasoline/electric hybrid model is also introduced this year. Basically a "mild" hybrid, the system provides no power boost, but does allow for automatic engine startup and shutdown at stops. This truck also comes with four 120-volt AC power outlets and is the only Silverado with rear disc brakes this year. The hybrid truck is only available in Western states and Florida.

• Roomy extended and crew cab models, strong V8 engines, innovative features, slick hybrid electric option.

• Lags the competition in terms or refinement and power, spotty fit and finish, low-grade interior materials.

User Reviews:

Showing 11 through 20 of 67.00

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  Not good for towing - 2005 GMC Sierra 1500
  By Mike - August 16 - 1:20 am

  Have you ever wondered why GM truck owners have to turn their hitches upside down. Even with Z-71, the suspension and trailering provisions are too soft and too low. Also the standard rear-end is going to be a 3.42. Great for milage, not so good for loading. Even with the 5.3 the engineers have turned up the computer trying to hide the small rear end. Posi-trac, not so good. One slick boat ramp and you will glad for 4WD. Even empty on the highway using cruise, the drivetrain cannot maintain enough power on hills to keep from down shifting and raising the RPMs. I pull three trailers ranging from 900 to 5100 pounds. All will wag this truck around easily. Brakes/rotors are on 3rd set.

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  2005 Sierra Denali - 2005 GMC Sierra 1500
  By Dave034 - April 17 - 10:20 pm

  The power and acceleration are unbelievable. Handling is very good for a pickup. I only have 1000 miles on it so far, but very satisfied overall. I previously had an 01 Tahoe with the 5.3 engine, and the Sierra Denali with the 6.0 is getting slightly better mileage (if I keep a light foot on the gas). For some reason I could never average better than 13.5 with the Tahoe around town, and am getting just under 14 with the Sierra. I think the ethanol fuels around here are partly to blame for lower mileage. The tonneau cover that came with the truck is OK, but I think an Access brand cover would be better - easier to roll up than the GMC model. The all wheel drive is very smooth.

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  GMC, you can and must do better - 2005 GMC Sierra 1500
  By dg - February 6 - 10:50 pm

  I have been driving this truck for almost 2 years, so I know all of its little nuances. Unfortunately, I am not impressed. I have had many GM vehicles and this has been one of the worst. Warranty issues include: new radiator, new brake rotors, power seat motor, tranny problems, etc. I can only attribute this stuff to the fact that GM is rabidly seeking the cheapest suppliers on the globe, which has to hurt quality. I must admit that I use my truck heavily, but what good is a pickup truck that cant handle a little beating? Considering the msrp on this thing was around $39000, GMC must do better with its 2007 model. If not, Tundra and Titan will have Sierra for lunch!

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  Not happy for a few years - 2005 GMC Sierra 1500
  By Mike - November 12 - 9:06 pm

  When I purchased my truck almost 5 years ago, it has had a popping sound coming from the front end. It has been to the dealership 3 times, parts replaced each time. Worked well for the last couple of years, than it has started the popping again. Driver side door sounds like it is falling apart for the last 4 years. Had that repaired before and after a couple of years it is again sounding like its falling apart. For the last 12 years Ive owned 2 GMC Trucks and have enjoyed them. Since this is my second truck and I do enjoy it besides the repeating problems I wouldnt mind owning a 3rd, however the window stickers are a little out of my range now.

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  Mostly electrical problems - 2005 GMC Sierra 1500
  By Dennis Brooks - March 24 - 4:40 pm

  I bought this truck new in 2005, have put 67k miles on it in 5 years. This is a very comfortable truck. I took it on many 300 mile trips without a rest stop, feeling like I had only driven to town. However the many electrical problems has me wondering about the quality of gmc. Less than 5k the instrument display showed "electrical malfunction". The dealership repaired and did not give me reason. Other problems are evap solenoid, power door lock, brake master cylinder, bumping in steering column, 4wd transfer case switch, speedometer would go to 0, seat heater shorted out, headlights and dash lights flicker anytime you hit brakes or use Windows. The dealer gave an extra 2 yr warr for free due to the issues

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  Lovin every minute of it - 2005 GMC Sierra 1500
  By gmctech - October 26 - 9:06 pm

  Love this rig. I am a GM technician and have a great love for the GM trucks. Love the style and the right amount of chrome. Never let me down yet. I live in the maritimes in Canada and love the flawless 4wd system and my truck auto 4wd mode. Fuel mileage is OK, but could be better. Very quiet ride but could use some better quality to rectify the little body creaks, rattles, and squeaks.

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  If it onlly could turn better!! - 2005 GMC Sierra 1500
  By Rich M - April 11 - 8:46 pm

  This is as comfortable as any car I have owned. It has decent gas mileage and enough power for most needs (5.3L).

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  GMC Sierra 1500 - 2005 GMC Sierra 1500
  By gmcgfx - February 6 - 12:30 pm

  I have a GMC Sierra I bought second-hand with the optional GFX package. I really like the extra exterior/interior features such as two tone paint, stripe on the side, carbon fibre dash, white gauges etc. At first the 4WD did not work, however after a quick cleaning of the connection from the wire bundle to the solenoid on the side of the transfer case, I have had no problems. It came with the 5.3L aluminum block engine and pulls quite hard. Tow/Haul mode is great for uphill towing. The cab had an annoying grinding noise which was quickly remedied with some hockey tape on the cab door latches. Overall, a great work truck and daily driver.

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  Mostly Happy - 2005 GMC Sierra 1500
  By RMcGee - February 1 - 10:50 pm

  As soon as I saw this vehicle I loved it. Victory Red w/ GMC 20" wheels. I am on my 3rd year and just under 36k miles. I have pulled my 22 boat to the Ozarks which is around 300 miles each way through some hilly country. The truck shifts down a lot to keep up the RPMs. The interior seems a little on the cheap side & reminds me of some Mattel toys I had as a kid. I did have the intermediate shaft in the steering fixed at 25k miles. Now that my warranty is up my check engine light is on and I guess the vaccum canister needs replaced which is $500(for plastic). Overall I love the truck and use it for everything from towing to hauling. I just wish the standard warranty was 100k.