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2008 GMC Yukon XL 2500 SUV - Overview

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$40,335 – $43,985 MSRP

$36,907 – $40,246 Invoice

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Power Circle Ratings

Overall Quality 3.0

Overall Performance and Design 3.0

Overall Dependability 5.0

Ratings data for all body styles and trim levels within a particular model family are aggregated when calculating the model's overall Power Circle Rating.
2008 GMC Yukon XL 2500 SUV

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Overview

What Changed for 2008:

  • Addition of hybrid model (not available on Denali models)

  • Head curtain side-impact air bags standard on all models

  • Stability control standard on Yukon XL 2500 models

  • 6-speed automatic transmission on Yukon XL 2500 models

  • 17-inch wheels available on Yukon XL 2500 models

  • Two new exterior colors: Stealth Gray Metallic and Sonoma Red Metallic

  • Yukon Denali and Yukon XL Denali 2WD models late availability

  • Denali new exterior colors: Red Jewel Tintcoat and Dark Slate Metallic
Overview
Redesigned in 2007, the GMC Yukon, along with its sister vehicle the Chevrolet Tahoe, will show only minor changes for the 2008 model year, with one exception: GMC is adding a hybrid model to its lineup. GMC claims the two-mode hybrid propulsion system is the first of its kind in a sport utility vehicle (SUV), and should result in a 25-percent increase in fuel economy overall, with a 40-percent increase in city mpg. GMC says the Yukon has been a popular choice with buyers because of the wide range of seating and cargo configurations, as well as several engine choices, four different transmissions, and strong towing numbers.

Model Lineup
GMC's Yukon offerings list for 2008 includes the Yukon, Yukon XL, Yukon Denali, or XL Denali, as well as the new-for-2008 Yukon Hybrid. Drivetrain choices include 2- or 4-wheel drive (2WD or 4WD) for Yukon and Yukon XL models, while the Denali models are available in all-wheel drive for now, with 2WD models coming later in the year. Both Yukon and Yukon XLs come in SLE 3SA or 3SB or SLT 4SA or 4SB trim levels. The Yukon Hybrid is only offered as a short-wheelbase model, so it has no XL designation, and is available in only one trim level.

The entry Yukon SLE 3SA features front and rear climate controls including dual-zone for the driver and front-seat passenger. Seating is standard for 8 passengers, with a 40/20/40 split-bench seat up front, a 60/40 split second-row bench, and a 2-passenger third-row 50/50 split-bench seat. Additional items on the SLE 3SB include rear audio controls, front bucket seats, and foglamps. The SLT 4SA provides an upgraded audio system, remote vehicle start, and 17-inch bright alloy Sport wheels. The top-of-the-line SLT 4SB adds power heated side-view mirrors, power-adjustable pedals, and rear park assist.

The Yukon Hybrid comes with standard leather front bucket and leather second-row seats, a navigation radio with rearview camera, XM satellite radio, remote start, rear park assist, 18-inch alloy wheels, and a premium Bose audio system. The first- and second-row seats are unique to the Hybrid model both for weight savings and under-floor battery packaging.

Powertrain
GMC offers a variety of engines for the Yukon lineup. The 4.8-liter V-8 engine is standard on the base 1500 Yukon 2WD model, and produces 295 hp and 305 lb.-ft. of torque. An all-aluminum 5.3-liter V-8 engine is standard on all models except the base Yukon 2WD. This engine generates 310 hp and 335 lb.-ft. of torque. A 5.3-liter V-8 engine with an iron block comes in a Flex Fuel version that runs on E85, which is comprised of 85 percent ethanol. The iron-block V-8 engine produces 320 hp and 340 lb.-ft. of torque. A Vortec 6.0-liter V-8 engine is available on Yukon XL and produces 320 hp and 360 lb.-ft. of torque. The Yukon Denali and Denali XL come with a 6.2-liter V-8 engine good for 380 hp and 417 lb.-ft. of torque. All engines except for the 6.0- and 6.2-liter powerplants are matched to a 4-speed automatic transmission. The big engines are matched to a 6-speed automatic transmission.

EPA fuel economy figures are an estimated 15 mpg city/20 mpg highway for the 4.8-liter engine, 16 mpg city/22 mpg highway on the 5.3-liter engine (16 mpg city/21 mpg highway with Flex Fuel), and 14 mpg city/18 mpg highway on the 6.0-liter engine. The 6.2-liter engine gets 13 mpg city/19 mpg highway. The Yukon Hybrid won't be on sale until the end of 2007, and GMC will release fuel economy numbers upon that vehicle's availability.

Safety
The Yukon comes fully equipped with dual-stage front air bags; side curtain air bags (standard on SLT, available on SLE); tire-pressure monitor; and available rear park assist (standard on SLT 4SB). Stability control is standard on all models as well. OnStar, GM's hands-free, in-vehicle communications assistance program, offers standard features like RideAssist that will call a cab if you're incapable of driving; stolen vehicle loan assistance; vehicle diagnostics; advanced crash notification; and automatic notification of air bag deployment to send for help immediately. All Yukons also offer a locking rear differential to help handle tough off-road situations and keep the vehicle from getting stuck in ruts or deep snow or sand. The Yukon Hybrid has its own set of safety features that relate to precautions with the battery pack, to protect occupants as well as rescue workers in the event of an impact.

Technology
The new GMC Hybrid model employs a two-mode system with two 60-kilowatt motors in addition to the Vortec V-8 engine. The first mode uses electric power only, engine power only, or a combination of both at low speeds and under light loads. The engine shuts off when the vehicle is at a complete stop, and electric power is used mostly during stop-and-go traffic to help improve fuel economy. At highway speeds, full V-8 engine power is used, such as when passing, trailer towing, or climbing grades. A 300-volt battery pack is located under the second-row seats to recharge the electric motors, and the regenerative braking system precludes the need to plug in the vehicle to recharge it overnight, the manufacturer claims.

Available Trims for the 2008 GMC Yukon XL 2500 SUV

  Transmission MSRP Engine City/Hwy MPG
SLE w/3SA 6 speed automatic $40,335 352-hp / 6.0L 8-cyl 0/0
Commercial Fleet (Fleet or Gov Only) 6 speed automatic $40,335 352-hp / 6.0L 8-cyl 0/0
SLT 6 speed automatic $41,140 352-hp / 6.0L 8-cyl 0/0

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