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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  Best truck I ever owned is a GM brand. - 2005 GMC Sierra 1500
  By AJs - March 3 - 7:20 pm

  I love the way the truck handles, and the way it has such good pick up when you are out on the road. You kick it in, and it will rock. The sound system is great. I love cruising down the road, rocking to whatever I choose. It is just a great machine to drive. I truly do love this GMC truck.

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  Awesome truck - 2005 GMC Sierra 1500
  By zeek - February 26 - 11:53 pm

  Plenty of power from the v6 and great mileage too. With the 5-speed manual I get an average of 25mpg on the highway and 20 in the city. Not bad for a full sized truck.

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  05 GMC SLT Crew Cab - 2005 GMC Sierra 1500
  By Bob - January 1 - 7:06 pm

  I am handicapped and this truck is very easy for me to operate. Everything is in clear reach, no need for any modifications. My wife, grand- daughter and I took a trip from Texas to Florida after buying the truck with no issues. Gas mileage is fantastic.

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  2005 1500 GMC Extended Cab - 2005 GMC Sierra 1500
  By Orlean - November 17 - 7:40 pm

  Except for the early tranny issue and the noise coming from my steering column, this truck has been spectacular! Thanks to a personal mechanic who was a GM mechanic, the steering column has become a non-issue. And, the dealership took GREAT care of the tranny issue. 140,000 miles into it and I STILL love this truck! Ive driven it to/from CA and TX several times, in both winter and summer, and its served me VERY well! MPG has deteriorated over the years, but thats to be expected. Started at 17MPG and now at 15! I miss that extra 2MPG!

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  Dead Reliable - 2005 GMC Sierra 1500
  By Dennis - September 13 - 1:50 pm

  This is my 4th new GMC full size. They are more reliable than the 3 new Mercedes automobiles I have also owned. Comfortable seats...easy highway cruiser. The 6000 engine is great, but loves gas!

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  Nice Ride - 2005 GMC Sierra 1500
  By Truck - June 11 - 1:56 am

  I considered the Tundra and new F150 and am very happy with my choice. It is powerful enough to easily pull my 20 powerboat and the ride is like a big, roomy luxury car. I like that I can select the automatic 4WD mode and forget about it on dry pavement without hurting anything. Unlike on the Tundra, the back seat of my extended cab version is actually usable for adults.

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  GMC Sierra - 2005 GMC Sierra 1500
  By Jerry Wright - February 25 - 7:20 am

  This is my 1st crew cab, Ive owned quite a few extended cabs in both GMC and Chevy. I believe this truck is the best handling of all the trucks Ive owned. This has a 5.3 V-8 which is what I needed to pull my boat. It is a SLE model which has cloth seats, which I like better than leather. The seating is very nice and comfortable for large people and small alike. I would highly recommend this truck.

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  05 GMC EXT CAB SLT Z-71 - 2005 GMC Sierra 1500
  By Lee - October 14 - 12:33 pm

  I purchased this certified used truck with 52,000 on it the black exterior and gray leather were spotless and everything works as new from heated seats, xm radio, on star etc. I have added a lot of aftermarket chrome parts and a dual cat back system, K&N intake and Hyperteck programmer. Ive been thinking of brighter headlights Silverstone, and itll be a keeper with the 100,000 mile extended warranty the 5.3 is working just fine so far and next oil change will be Mobil 1 at 5000 mile interval will report problems when they start so far so good.

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  Great Truck - 2005 GMC Sierra 1500
  By Montanatruck - January 19 - 10:13 pm

  This Truck is amazing. It has great acceleration, and power. I drove from Los Angeles to Bozeman, Montana in 2 days, around 1400 miles, and it didnt even have a hiccup and hadnt lost any oil. We had a snow storm the other day and truck drove like it was on dry pavement. When I was shopping for a new truck I was looking for a truck with plenty of torque, so the japanesse trucks were no in question. I had to decide wheather to choose ford or GM, but i eventually decided on the GMC because I liked the style, and had everything I wanted.

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  Gmc crew cab - 2005 GMC Sierra 1500
  By Bill - November 11 - 1:46 am

  Mileage has been above what I expected for a vehicle of this size. Very comfortable on the road. Handles very well on trips and the 5300 has plenty of reserve power