Overview & Reviews

For 2006, there's a new "VortecMAX" performance group that includes a 345-hp 6.0-liter V8, a heavy-duty tow package and a stronger rear axle; thusly equipped, the half-ton Sierra is on more equal footing with Nissan's Titan and the Hemi-equipped Dodge Ram. The Quadrasteer four-wheel steering option has been dropped, and the optional camper-style mirrors have been replaced by a folding and extending design with a built-in convex spotter glass. Other changes on the GMC truck include slightly updated front-end styling and minor adjustments to trim levels and body configurations.

• Roomy extended and crew cab models, variety of V8 engine options, innovative features, slick hybrid-electric option.

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

User Reviews:

Showing 1 through 10 of 38.00

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  No problems yet. - 2006 GMC Sierra 1500
  By koryharper - June 24 - 6:56 pm

  I bought this truck with 6000 miles on it. Its first drive was from Cleveland to Fayetteville, NC. Never really noticed anything expect it lacks in acceleration. It feels like 2nd gear when taking off. When downshifting it seems to rev a little too high. other that great truck, the only problem Ive had was at about 30k I got a ENGINE POWER REDUCED light but it went away when I came out of the bar. Brakes pulse a little too. But nothing major yet. I dont know why everyone else complains. "fingers crossed" If i ever switch brands itll be because this truck does lack in the power department. Once going its awesome but not great on the low end. However 4x4 is great in tough terrain.

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  knocking noise and wires - 2006 GMC Sierra 1500
  By primetime - April 26 - 6:13 pm

  within the last year since I hd my sierra around 48,000 miles as I began to accelerate after I had been at a light or stop sign I am been getting a knock or a clunk as if the u joint is bad. also when I took it in for service because the engine light at 35000 miles Dealership told me it was rodent damages. This is an excuse after talking to other sierra owners it was just faulty wires that GM put on trucks. I wont buy another, after 3chevys and a gmc I am going to ford.

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  Functional but boring - 2006 GMC Sierra 1500
  By Keith - July 12 - 9:53 am

  I drive this vehicle for business, and typically turn a vehicle over every two years after putting on about 100,000 miles of gravel, off road and hwy driving. Past truck was 05 F150. I picked the GMC for its gas mileage which is quite good for a full sized truck, definitely better than my experiance with Ford and Dodge. Unfortunately this is the only area where the GMC exceeds the other American brands. I found the GMC has a lot more interior noise at hwy speeds than the new model F150. The GMC trailer towing capacity is clearly less than the F150, cant really put the GMC in cruise as it will rev so high. On uneven roads the GMC has so much body flex, it creaks like a covered wagon.

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  ALMOST IMPRESSED - 2006 GMC Sierra 1500
  By Ralph - November 2 - 9:40 pm

  It may be too soon to truly evaluate. As of now only 800 miles on it. The alternator whines. The dealer says this is normal with new pulsating alternators, there is a slight seat of your pant vibration at all speeds. Brakes pulse as if disc or drum is out of round. The overall ride is smooth and comfortable. Gas mileage is not bad for 5.3, average 16.4 city. It tows my boat as if it were not behind me. So far, so good! Just some kinks to be worked out.

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  Best truck yet - 2006 GMC Sierra 1500
  By WJ - October 16 - 12:13 am

  I dont need a lot of whistles and bells in a truck. What I need is reliability and function, fuel economy was a surprise (19.7 average) city/highway!! Its a great solid reliable truck, the best Ive owned. Before this my Toyota Tundra was tops, and its a great truck, just not a solid as my GMC.

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  After 70,000 have only had one problem - 2006 GMC Sierra 1500
  By ~CRASH~ - April 30 - 7:20 pm

  I love my truck, its mainly a work truck but I put more miles on it than any of the other trucks. Yeah after about 15,000 miles dash started rattling but till after 70,000 miles its been loyal and I beat the hell out of this truck i.e. racing, fish tailing around corners, bad terrain. And so far the tranny dumped out on acceleration at 50 mph. Rebuild was 850. So no bad review here.

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  2006 GMC 1500 4X4 SLE Z71 - 2006 GMC Sierra 1500
  By David Russell - January 8 - 9:23 pm

  Very Handsome truck. Price was very reasonable ($6,000 less than comparable Titan)Combination of performance and fuel economy very good for 4X4 large truck category (17 mpg avg.). Only two complaints too tall gearing 3.42 gears in all 4X4 trucks I looked at;thus towing is kinda difficult. Truck feels like it is in second gear when starting off. Corrected that problem with 4.10 gears. Now truck pulls hard and feels more powerful than the titan I drove, and also my dads hemi ram. I also have a programmer intake and exhaust. The truck with 8" lift and bigger tires still runs around 7.2 seconds to sixty. Stock it could muster only 8.8 seconds to sixty. other problem no grab handle for driver.

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  Love my V-8 Z71 Crew Cab - 2006 GMC Sierra 1500
  By Hartwell - March 5 - 11:36 pm

  Interior is roomy and very comfortable for all on long trips. I added a camper shell and roof rack. This truck can hold a ton of gear, and haul your boat, and family and still get 17 MPG. I hunt and fish in the south east so I use 4WD off road and at boat ramps, works great, easy to swich in out 2 to 4 to automatic 4WD. I compared Nissan, Toyota, Ford, and Dodge. At the time of purchase this was the best value by far at the time of purchase. I also have a superb 97 Sierra 2WD approaching 200K, I hope I get the performance and long life with this 06. Note:I had the same wheel bearing issues as others and was covered under 3/36k bumper to bumper warranty, dealer warranty service was great.

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  Proud GMC Owner - 2006 GMC Sierra 1500
  By Mike - March 1 - 9:26 pm

  I started out with a Chevy 89 Silverado of which I still have. It now has 372,000 miles on it and it still has the original motor. I have never made any repairs on the motor. The valve cover has never even been off of the head. Ive had several trucks since then. My most recent truck was a 2002 Chevy LT. It had 150,000 miles on it when I traded it. It had never been in the shop except for oil changes and 1 brake job. Im now driving a GMC SLT. I would be crazy to drive anything but a GMC product.

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  Thumbs up design-Thumbs down mechanical - 2006 GMC Sierra 1500
  By tkdk - July 3 - 12:26 pm

  Saw it on the lot and fell in love with its looks.Interior roomy,laid out well very good fit and finish. Fun to drive and real head turner I maintained it 100? inside and out. Then the DARK CLOUD at 40000-60. 4 tie rods,4 front hubs 4 brake jobs,Front and rear differential rebuilt,u joints,Drive shaft out of alignment, Steering column rattling like my 2002.Went to 2 dealers and factory Rep for warranty help.SORRY!!.70000 Master cylinder and ABS started goingBrought it to dealer for trADE.GAVE ME A GREAT DEAL PLUS REBATES.What did i trade it for? 2009 .GMC Sierra Z71 Crew cab.I know I know, Last try my 3rd.Pick it up in two days PS 5Yr 100000 warranty. My problems are theirs