2008 GMC Sierra 1500 Extended Cab Review | Edmunds.com

2008 GMC Sierra 1500 Extended Cab

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GMC Sierra 1500 Features and Specs

Features & Specs

  • Engine 5.3 L V 8-cylinder
  • Drivetrain Four Wheel Drive
  • Transmission 4-speed Automatic
  • Horse Power 315 hp @ 5200 rpm
  • Fuel Economy 14/19 mpg
  • Bluetooth No
  • Navigation No
  • Heated Seats Yes

Review of the 2008 GMC Sierra 1500

  • Powerful, comfortable and offered in a wide array of body styles and configurations, the 2008 GMC Sierra is a prime choice for a full-size pickup.

  • Safety
  • Pros

    Refined and very quiet ride, pleasing fit and finish inside, seats are comfortable for long drives, comprehensive list of safety equipment.

  • Cons

    Larger turning circle than most rivals, mediocre interior storage and cupholders.

  • What's New for 2008

    Coming off a redesign last year, the 2008 GMC Sierra 1500 has only minor changes this year. Satellite radio is now standard equipment and an integrated trailer brake controller is optional. GMC says it will also be offering 22-inch wheels (as a dealer accessory) and a flashier version of the Z71 Off-Road package called the Sierra All Terrain.

What Others Are Saying

Customer Reviews

  Average Consumer Rating (28 total reviews)


Worst truck i have ever

by on
Vehicle: 2008 GMC Sierra 1500 SL 4dr Extended Cab 6.5 ft. SB (4.8L 8cyl 4A)

Truck has 34000 miles on it. Main turn signal switch went out, Door lock switch out, Airbag sensor out, Master window switch out ($400) for a switch! Truck now will not engage the starter, so it's in the shop again. Do not buy any GMC or Chevy truck! Going back to Dodge.




Amazing truck

by on
Vehicle: 2008 GMC Sierra 1500 SLE2 4dr Extended Cab 6.5 ft. SB (5.3L 8cyl 4A)

I had been searching for a truck for a while and finally settled on this one. Picked up a used 2008 with 32000 miles and ive had it for over a month and absolutely love it. It rides sooooo smooth like a caddy and gas mileage is pretty good. Highway at 65mph is 23mpg. Toyota can't touch that. I have the 5.3. Haven't had it long enough to say how the reliability is, but i know from experience these 'Chevys' are so tough. I have the HD tow package and rear locking diff and it pulls my 20' Cobia like its not even back there... Interior is nice and tight. No rattles, no quirkiness. No engine rattle or cam bump. Sounds As if the motor is not even running. Truck is just pure quality!




Simply the best

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Vehicle: 2008 GMC Sierra 1500 Work Truck 4dr Extended Cab 6.5 ft. SB (4.3L 6cyl 4A)

gmc has a winner, hands down best all around truck made ! dodge has many issues, nissans are cheap,toyota overpriced and fords are big and bulky ! know people that own these trucks and they all say i never complain about any problems ! i am a gmc guy for life know ! test drive one and it will sale itself !




Gmc all the way !

by on
Vehicle: 2008 GMC Sierra 1500 SLT 4dr Extended Cab 4WD 6.5 ft. SB (5.3L 8cyl 4A)

I traded my 2001 GMC 1/2 ton 2WD with 195K miles (it still was strong as heck)for this truck and love it. I have always had good luck and good service from GM trucks. I bought this one with only 25K miles on it. The 8cyl to 4cyl fuel management was a little awkward at first but it is systematic now. On the open interstate at 75mph I have averaged 18mpg+. I was surprised. I have towed a 27ft camper with it with ease. The seating is comfortable even on long drives. Two thumbs up !




Worth every penny!!

by on
Vehicle: 2008 GMC Sierra 1500 Work Truck 4dr Extended Cab 6.5 ft. SB (4.3L 6cyl 4A)

First truck i have ever owned and it's everything i expected. Have owned 4wd suv's in the past and this truck has out performed them in winter by far. I take the truck for every family function and vacations , even over my wife's car.




Gmc should change there initials...

by on
Vehicle: 2008 GMC Sierra 1500 SL 4dr Extended Cab 6.5 ft. SB (4.8L 8cyl 4A)

To JUNK!!!! Too many problems with check engine light coming on constantly. For some reason, the gas cap constantly comes loose. GM should provide better stock tires. Had a flat from a piece of limestone gravel. Dealer told me I should drive on better roads! (It's a truck, isn't it?) Should have stayed with Ford. Big mistake to buy this truck. Dealer isn't interested in helping very often. It takes multiple visits to fix one problem. Maybe if the service manager got off his lazy [violative content deleted] of his chair, it could be fixed. Last GM product EVER!



Full 2008 GMC Sierra 1500 Review

What's New for 2008

Coming off a redesign last year, the 2008 GMC Sierra 1500 has only minor changes this year. Satellite radio is now standard equipment and an integrated trailer brake controller is optional. GMC says it will also be offering 22-inch wheels (as a dealer accessory) and a flashier version of the Z71 Off-Road package called the Sierra All Terrain.

Introduction

Recently, General Motors trucks were known for providing excellent utility but disappointing levels of passenger comfort and interior quality. That generalization was laid to rest last year, however, when the GMC Sierra, as well as its more common twin, the Chevrolet Silverado, received a major redesign.

As a result, the 2008 GMC Sierra 1500 is now one of the best choices for a full-size half-ton pickup. The full redesign addressed nearly all of the previous Sierra's faults. Highlights included updated styling, an improved interior with higher-quality materials and tighter build quality, a more rugged frame and redesigned steering and suspension components for better handling response and ride comfort. GMC also added new safety features like stability control and side curtain airbags.

This latest GMC Sierra is now very suitable for a wide array of truck buyers, from the general consumer to the contractor. It boasts a wide variety of body styles and configurations, an available 403-horsepower V8, a comfortable ride, decent handling and steering and enough comfort and entertainment features to rival a luxury sedan.

Compared to the Chevy Silverado, the 2008 GMC Sierra is a little more upscale in terms of styling -- particularly on the Denali trim -- but overall, the differences are minor. Both are highly recommended for half-ton-truck shoppers. Alternately, if one doesn't find GM's trucks to his or her liking, the Nissan Titan and Toyota Tundra are two other highly recommended models to check out.

Body Styles, Trim Levels, and Options

The 2008 GMC Sierra 1500 is a half-ton full-size pickup. There are three body styles available: standard cab, extended cab and crew cab. Standard cabs can be had with either a standard bed (6-foot, 6-inch) or long bed (8-foot). Extended cabs can have a short (5-foot, 8-inch), standard or long bed. In the interest of maneuverability, crew cabs come only with the short bed.

Regular cabs can be had in base Work or nicely equipped SLE trims, while the extended and crew cabs are also available in the plush SLT trim. There's also an SL trim and a top-of-the-line Denali trim for crew cabs only. The Work trim comes with the basics, including air-conditioning (extended and crew cab versions), a trip computer, OnStar, vinyl seating, a 40/20/40-split front bench seat, a CD/MP3 player with an auxiliary audio jack, satellite radio and a tilt steering wheel. The SLE trim actually consists of two subsets, SLE1 and SLE2. The SLE1 (and the largely similar SL) build on the Work trim with cruise control, cloth seating (with adjustable driver lumbar support), full power accessories, keyless entry, an auto-dimming rearview mirror and a leather-wrapped steering wheel.

Opting for the SLE2 nets you alloy wheels, dual-zone automatic climate control (in extended and crew cabs), front bucket seats and steering-wheel-mounted audio controls. The premium SLT has all of the previous equipment, plus rain-sensing wipers (with heated washer fluid), a Bose audio system with six-disc CD changer, leather seating, remote engine start, an exclusive dash design with wood/metallic accents, 12-way power, heated front seats and rear audio controls. Sierra Denali models trump the SLT with a unique powertrain, on-road-biased suspension tuning, special wheels, exterior styling enhancements, a heated steering wheel and a turn-by-turn navigation feature for OnStar.

Depending on the Sierra ordered, notable available options include a variety of towing packages, the Z71 Off-Road Package (skid plates, off-road suspension and locking rear differential), the All-Terrain Package (similar to the Z71 but with special interior and exterior enhancements), 20- and 22-inch wheels, upgraded audio systems, a navigation system, a rear-seat DVD entertainment system, heated power-folding outside mirrors, a sunroof, a power-sliding rear window, a cargo management system and rear park assist. There is also an optional "EZ Lift" tailgate that requires only about half the effort (compared to the standard tailgate) to open and close.

Powertrains and Performance

There are five different engines available for the Sierra 1500. Work trucks have a 4.3-liter V6 (195 hp, 260 pound-feet of torque) as standard. This can be upgraded to a 4.8-liter V8 (295 hp, 305 lb-ft) or a 5.3-liter V8 (315 hp, 338 lb-ft). The SLE trims will have one of the two V8s as standard, while the SLT has the 5.3-liter engine as standard. Optional on select models is a 6.0-liter V8 that makes 367 hp and 375 lb-ft. It typically comes as part of the Max Trailering Package. With that package, the Sierra can tow up to 10,500 pounds. Unique to the Denali is a 6.2-liter V8 cranking out 403 hp and 417 lb-ft of torque.

A four-speed automatic transmission with a tow/haul mode is standard on all Sierra pickups with the exception of the Denali, which has a six-speed automatic. Buyers have a choice of two-wheel drive, four-wheel drive or, in the case of the Denali, all-wheel drive. The Work and LS trims with 4WD have a traditional floor-mounted selector for the transfer case. All other 4WD trims have Autotrac, which features an automatic setting that shifts into 4WD when wheel slippage is detected. Though fuel economy for the workhorse 5.3-liter V8 4WD is hardly impressive (the 2008 EPA estimate is 14 mpg city/19 mpg highway), it ranks as the most efficient V8 available in a mainstream full-size truck.

Safety

Antilock brakes (front disc, rear drum) are standard, with an all-disc setup available via the Max Trailering Package or the Denali trim. A stability control system with roll-mitigating technology is standard on crew cabs and optional on extended cabs. Side curtain airbags and adjustable pedals are optional on most models. In government crash tests, the Sierra earned a top five-star rating for protection of front occupants in head-on collisions.

Interior Design and Special Features

Tight build quality, an attractive dash design and comfortable front seating combine with sound ergonomics to make the Sierra's interior enjoyable on long road trips. The rear seat in crew cab models is also quite comfortable, and the seat cushions can be folded upwards for a nearly flat load floor. Interior storage is adequate, but some might take issue with the cupholders (too small) or the organization of the center console box.

Driving Impressions

Though not top of the class in terms of steering and hampered by a slightly larger turning circle than most other trucks, the 2008 GMC Sierra is still a very comfortable and easy truck to drive. On long trips, the supple suspension and quiet cabin come into play to make the truck a pleasing companion. Acceleration is certainly acceptable with either the 4.8- or 5.3-liter V8. The optional 6.0-liter V8 can get the truck to 60 mph in 7.9 seconds, while the Sierra Denali is quicker still.

Talk About The 2008 Sierra 1500

Gas Mileage

EPA-Rated MPG

  • 14
  • cty
/
  • 19
  • highway
Calculate Yearly Fuel Costs