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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  Awesome Truck - 2007 GMC Sierra 1500
  By drdice - November 23 - 12:16 am

  Just purchased this vehicle a few weeks ago. GM has definitely won me back as a customer. Last GM owned was a 96 Blazer. They have finally figured out how to put style into their new vehicles. The truck drives so solid and smooth and exudes quality craftsmanship throughout. I did consider buying a new Tundra but it just didnt have the same curb appeal as the Sierra. Also, the Tundras interior looked and felt very cheap and plasticky compared to the Sierra. I hope this Sierra ends up being as reliable as the Tundra likely will be.

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  3rd Sierra...Best Yet - 2007 GMC Sierra 1500
  By uh33nowit - November 22 - 10:10 am

  This is my 3rd Sierra and by far the best theyve made yet. The exterior is simple yet very appealing. The biggest improvement was on the interior. GMC really thought through the location and function in the interior. The fit and finish is much improved over previous versions and the quality of the plastic is much better. The truck rides very smooth and feels much smaller than it is (which is a good thing when driving in traffic and parking). The engine is smooth and delivers quite nicely. The Active Fuel Management so far has been seemless when going from v4 to v8 mode. Currently I have been averaging 15 - 18 mpgs. No complaints

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  Slowly falling apart - 2000 GMC Sierra 1500
  By jcat_70 - November 13 - 11:40 pm

  I owned a 2000 GMC Sierra 1500 for 4 years. Although, I must say, the engine and trans were reliable, partly because I used Mobil 1 synth. oil and never beat on it. Other things with the truck started to fall apart, i.e., the ABS system would intermittently go off at less than 5mph on dry surfaces, the fuel gauge would start and stop working, the right side mirror was flopping around in the wind, the tailgate handle (plastic) broke off when opening the tailgate one day. The brakes were terrible - including the rotors and way too much distance was needed to stop. The drivers door lock got jammed and wouldnt lock no anymore. Power window linkage broke. Radio lights quit working. too much!

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  GMCs Hot Truck is still a truck - 2002 GMC Sierra 1500
  By silky - October 29 - 9:40 am

  Wants: A vehicle to haul stuff and still be sporty. GMCs Sierra 1500 with the HT package seemed a good bet. A 4.8 liter 270 hp motor, auto trans and heavy duty suspension. After 8k miles Im disappointed. The engine lacks low end torque often shifting in first gear to pass or merge with authority. The ride is choppy on the freeway and gas mileage is poor, best 15mpg.

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  GMC (Grand Mas Chariot) - 2001 GMC Sierra 1500
  By bfrano - October 26 - 5:23 am

  Have driven on different vacations R/T East - West, North - South. Each time the grandkids were present and traveled comfortably. A good feature is that on "Antiqueing" trips, I can purchase an item and not have to worry about the cost of freighting the items. Recently, I test drove a Tahoe, Yukon, and and an Expedition because I needed a set of step sides/running boards. Afterwards, I decided to keep my GMC truck and buy the accessories.

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  Subtle, but well executed - 2014 GMC Sierra 1500
  By jmred - October 16 - 10:54 am

  Have had 3 fords (last w an ecoboost so spoiled on torque) and only now coming back to GM. Had a silvy that was rock hard in terms of durability... But rock hard plastics in the cab sucked. I came back after creaking and lackluster workmanship in the ford turned me off. Silent cab. Not quiet.. Silent! Wife is actually ok w me adding new pipes! This is a z71, All Terrain, so very nice interior and fitting of a lux car. Outside is all business. Nice, subtle change for gmc; modern look that grows on you and doesnt betray the heritage. 5.3 is much stronger than the old one and you cant feel the v4-v8 switches.

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  Good Truck - 2004 GMC Sierra 1500
  By timmarcy - October 16 - 10:00 am

  IÂ’ve wanted one of these since I was 15 and used to walk to the dealership and gawk at them. IÂ’m 25 now and can finally afford toÂ…well, umÂ…finance one. IÂ’m gad to say I havenÂ’t been disappointed. After all of GMÂ’s rebates their trucks are only slightly more reasonably priced. Good MPG for a large truck. Glad I got the 5.3. Even in an extended cab 4 adults can ride comfortably. Good off road capability. Quiet interior. Leather seats are very hardy. Only complaint is the cheap dash board. Where does GM get all this plastic??? IÂ’ve had my truck 6 months and 8000 mi with no problems. I plan on keeping her till the wheels fall off.

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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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  POOR GMC - 2001 GMC Sierra 1500
  By POOR GMC - October 12 - 7:06 am

  THE 4.8 WILL NOT TOW ANYTHING. IT HAS TROUBLE PULLING ITSELF UP SMALL HILLS IN OVERDRIVE. POOR GAS MILEAGE.

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  Oil consumption - 2007 GMC Sierra 1500
  By Shawn - October 9 - 10:46 pm

  Love the truck but Very disappointed with OIL CONSUMPTION Im burning about 2 quarts every 3000 miles. and its not like i abuse the truck Ive changed the oil every 4000 miles and use synthetic oil. I spoke with a gmc dealer today and he says they know of the problem but gmc has done nothing to respond to the problem as a former dodge and ford owner I hope GM does something to fix the problem. Or i guess I will be looking for a new truck and GMC will not be a option. truck has the 5.3 V8 and 33,000 miles on it to date