Overview & Reviews

The pickup truck has long been a mainstay of American byways and highways, and GMC has been there from day one. Originally used and respected by farmers, construction workers and small-business owners, GMC's hauler was a basic workhorse known for its reliability and longevity. More recent times have seen GMC's full-size truck adopt the name Sierra. And thanks to a variety of body styles, powertrains and trim levels, the Sierra is as adept at serving as the weekday family car as it is at transporting home-improvement supplies or towing a boat on the weekends.

Older versions of the GMC Sierra 1500 pickup have been praised for their strong work ethic, but soundly criticized for their bland, cheap cabins. With the newer generations, however, fit and finish is notably better. Of course, there are other choices in the full-size pickup truck market, but the Sierra 1500 remains a solid pick no matter what the intended use.

Current GMC Sierra 1500
Redesigned for 2014, the latest GMC Sierra 1500 is both trimmer and stronger than before. The V6-powered regular cab truck, for example, is about 250 pounds lighter this year while the engine lineup, particularly the V6, benefits from higher output and efficiency. Other changes for the new Sierra 1500 include revised suspension tuning for a smoother ride, forward-hinged rear doors on extended cab models and newly available safety features.

This full-size pickup is offered in regular cab, extended (double) cab and crew cab body styles with various bed lengths. Trim levels consist of base, well-equipped SLE, luxurious SLT and off-road-oriented Z71, and there is a choice of either two- or four-wheel drive.

All but the SLT come standard with a 4.3-liter V6 that makes 285 horsepower and 305 pound-feet of torque, enough muscle to tow up to 7,200 pounds. The 5.3-liter V8 (standard on the SLT and optional on other Sierras) makes 355 hp and 383 lb-ft of torque. Both engines come matched to a six-speed automatic transmission.

The new V6 is vastly superior to the old V6, not only in terms of power and performance but also refinement. Of course, the 5.3-liter V8 delivers strong acceleration as long as you're not shy about laying onto the gas pedal when needed -- it has a rather lazy response otherwise. The six-speed automatic provides smooth and timely shifts and the Sierra 1500's towing performance is commendable.

Overall ride and handling dynamics are solid, as the GMC Sierra 1500 feels robust structurally, yet compliant and comfortable over broken pavement. Models fitted with the Max Trailering package, however, have a noticeably stiffer ride that can grow tiresome. The newest Sierra is also very quiet, even at higher freeway speeds. On serpentine roads, the GMC goes around turns in a confident manner and its steering is well-weighted. Off road, the Sierra similarly feels composed.

Used GMC Sierra 1500 Models
The previous-generation GMC Sierra 1500 was produced from 2007 through 2013. There were three body styles (regular, extended and crew cabs), and trim levels ranged from no-frills "Work Truck" to ultra-plush Denali.

Powertrain choices through these years encompassed everything from an anemic 4.3-liter 195-hp V6 to a muscular 6.2-liter V8 with 403 hp. Most Sierras, however, were fitted with either a 295-hp 4.8-liter V8 or a 315-hp 5.3-liter V8. A four-speed automatic was initially standard across the board except on the Denali's 6.2-liter V8, which came with a six-speed unit. Eventually, the six-speed was fitted to the 5.3-liter V8 as well. Either rear- or four-wheel drive could be specified.

Calling cards of this GMC Sierra 1500 include strong performance, a refined and quiet ride (even with the heavy-duty towing package) and a comfortable, sensible cabin. The Denali was certainly plush, though it still didn't have the same space or high-end ambience of its Ford and Ram top-of-the-line rivals. Other potential downsides included minor ergonomic missteps and the hesitant downshifts of the four-speed automatic transmission. We had no such gripe with the excellent six-speed automatic, however, thanks to its smooth and on-point performance.

Potential buyers should be aware of the significant changes made throughout the years. For 2009, the Denali's 6.2-liter, 403-hp V8 with its excellent six-speed automatic became optional on select other trims. That year also saw the debut of Bluetooth, a back-up camera option that didn't require the optional navigation system, and the "XFE" (extra fuel economy) package for the crew cab. The following year, 2010, saw the 5.3-liter V8 get the six-speed transmission and variable valve timing, which both improved fuel economy slightly. The 6.0-liter V8 (367 hp and 375 lb-ft) that had been offered since 2007 was dropped that year while side curtain airbags, front seat side airbags and stability control all became standard across the board. Lastly, USB connectivity (standard on Denali) became optional on the SLE and SLT. For 2012, the navigation system was updated (now hard-drive-based) and trailer sway control joined the safety features list.

Before this was the popular 1999-2006 generation of the Sierra. Underneath the conservatively handsome styling, a family of new V8s debuted, ranging in size from 4.8 to 6.0 liters. They offered output ranging from 255 hp with the smallest 4.8-liter, to 345 hp from the high-output 6.0-liter V8 in the Sierra Denali. A base V6 was also available, but as expected, most Sierras came fitted with one of the V8s. A unique four-wheel-steering option (called QuadraSteer), debuted about midway through this generation and cut the truck's turning circle down significantly to 37.4 feet -- around 10 feet less than a typical full-size pickup – making U-turns and maneuvering in tight spots much easier . Unfortunately, QuadraSteer was discontinued for 2006 due to a low take rate, as buyers were put off by the high cost of this option.

Consumers more interested in function than flash should be happy with a half-ton Sierra from this era. The truck offered plenty of performance and work capacity, but was hampered by a dated cabin design fraught with cheap materials and below-average fit and finish.

The previous generation of GMC Sierra 1500 pickups ran from 1988-'98. Standard cab and extended cab body styles were offered, as was a crew cab, though the latter was actually from the previous 1981-'87 generation. Although six-cylinder and diesel V8s were offered, chances are strong that most GMC trucks from these years will have either a 5.0- or 5.7-liter V8 mated to a four-speed automatic. In keeping with tradition, one could choose either rear-wheel drive (indicated by a "C", e.g. "C1500") or four-wheel drive (indicated by a "K"). Trim levels for these C/K1500 trucks include the bare-bones Special, base SL, midlevel SLE and top-line SLT. Strengths of these trucks include powerful, durable powertrains, while weaknesses center on sketchy build quality and subpar materials within the cabin.

For more information on older GMC pickups, go to our GMC Sierra 1500 history page.

User Reviews:

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  My new GMC Sierra SLT Vortec Max Crew cb - 2007 GMC Sierra 1500
  By 1sttimetruck owner - September 7 - 4:30 am

  I just bought my truck a few days ago. I got the vortec max SLT. I was worried about such a big engine and fuel economy (6.0 liter) but when under moderate excelleration or on the highway it only uses 4 cylinders giving it better mileage than my mini-van that I traded in on it. It is very comfortable and the fit and finish of the leather and brushed aluminum trim competes with a Mercedes or BMW. The new design is way ahead of anything else I have seen on the road, when people see it they cant help but notice its size and intmidating looks. Yes I also got it because I have neer owned anything but a GM automobile, but after driving it around I know I made the right choice.

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  BUY AMERICA - 2004 GMC Sierra 1500
  By GATOR3434 - September 5 - 10:00 am

  GREAT TRUCK, 10 TIMES BETTER THAN ANY FOREIN TRUCK

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  Great Truck! - 2002 GMC Sierra 1500
  By dnlintl - August 23 - 10:00 am

  Bought the truck as a family vehicle for the wife an 2 kids. Plenty of room for every one. I would have preferred the crew cab version if they werent so dang expensive!

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  Elevation Edition - 2016 GMC Sierra 1500
  By Pak Him - August 13 - 8:35 am

  I live in Canada and the Elevation Edition just arrived for 2016. Great looking truck with the Elevation package. Tons of compliments. The engine provides just enough power for how i use the truck and the cylinder management works great. Shopped other trucks but no one else provides such a good looking truck in the same trim and price.

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  No regrets - 2007 GMC Sierra 1500
  By Don - August 8 - 2:00 am

  I was shopping for a Ford F150 and was determined to get the best. I was frustrated that I could not get factory remote start, DVD or a motor that impressed me. Just by chance I decided to check out the Denali. It had everything I wanted, NAV, DVD, Sunroof, heated steering wheel/seats and best of all a motor with more power than I ever imagined. This thing is a beast and sexy as ever. I turn more heads with this truck than I did with my Mustang Cobra. Its a combination of looks(black with chrome everywhere) and sound (the 6.2 L sounds like a 60s muscle car) Everytime I start the truck it puts a smile on my face. The black leather and stitching is perfect. Manual shift is awesome.

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  great truck - 2000 GMC Sierra 1500
  By angel 52 - July 19 - 10:00 am

  very good ride & very comfortable; this is one of the most comfortable vehicles i have ever owned & it is a truck! it is very peppy with the 4.8 V8 & gets 16 mpg in town driving.

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  Opinionated Mechanic - 2005 GMC Sierra 1500
  By Branden - July 13 - 6:06 am

  Performance is important to me. The engine pulls hard at higher RPM but lacks low end torque. I have a 3.42 rear gear ratio. If youre using the truck for trips and highway use, thats a perfect ratio. If you want to do towing or be quick between red lights I would get a 3.73 or 4.10 ratio to make up for the lack in low end power. The transmission performs Okay if youre looking for smooth shifts. I prefer a firm shift which you dont get, even in the towing mode. Towing mode just runs out each gear to a higher RPM. Which is good for towing. They advertise a locking differential. Its not a true locker like GM and Ford used in muscle cars. This unit sends power to the wheel with the most traction.

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  2003 GMC 4X4 - 2003 GMC Sierra 1500
  By Lee McClister - June 27 - 10:20 pm

  I use this truck every day for work and pleasure and it always serves me very well. I even used it to pull out a big lifted Ford from the mud.

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  05 Denali - 2005 GMC Sierra 1500
  By Mike - June 26 - 9:00 pm

  I have owned several GM trucks and one Ford - this is definitely the best Ive owned. The acceleration is very good, the truck handles well, transmission shifts are smooth, and it is very quiet and comfortable for a pickup. Pulls a 6,000# boat like a dream. My only minor complaint is a slightly mushy brake pedal feel. It seems that you have to apply more pressure than on other trucks Ive driven. Overall, a very nice truck, and with the current GM offer, a good value in my opinion.

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  3 Months and 4,500 Miles later... - 2007 GMC Sierra 1500
  By blharris77 - June 17 - 2:43 pm

  Overall Ive been very pleased with my 2007 GMC Sierra SLT Z71 4X4 5.3 liter. Drives straight and true with a very tight feel. Steering is very responsive, exhaust tone is just aggressive enough but not annoying. With the Z71 suspension the ride is a little rough but that is to be expected. A friend has the handling suspension and his rides much better (but mine looks better!) Only complaint is the transmission seems to hesitate between 1st and 2nd if youve been slowing down (as approaching a stop light) and then attempt to accelerate without coming to a complete stop first (like when the light turns green before you get there). Also noticed the brakes squeal sometimes.