GMC Sierra 2500HD

Name: 2008 GMC Sierra 2500HD
Brand: GMC

EPA MPG: NA

Owner Reported MPG:

EPA MPG: NA

Owner Reported MPG:

RECALL ALERT: There are 3 recalls on this vehicle. Learn More.

There are 3 recalls on this vehicle. Learn More.

RECALL ALERT: There are 3 recalls on this vehicle. Learn More.

There are 3 recalls on this vehicle. Learn More.

First Take

Like the Chevrolet Silverado, the heavy-duty version of the Sierra has a stiff ride and lacks the selectable 4WD system and stability control. The 2500 and 3500 HD models are offered in two- and four-wheel drive as well as the dual rear-wheel setup known as a ¿dually.' Three bed configurations are available: a six-foot, six-inch standard; eight-foot long; and the Dually. The standard engine is a 353-hp, 6.0-liter V8, and a 365-hp, 6.6-liter turbodiesel that delivers 660 foot-pounds of torque is also available. It can haul up to 2,200 pounds of payload and tow a heavy trailer, and it returned 13 mpg overall in our tests. The engine is punchy and not too noisy, and the Allison-sourced six-speed automatic transmission is smooth.

Reliability Details

Owner Satisfaction Details

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2008 Pickup trucks Reliability

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GMC Sierra 2500HD

vs. Similar Cars

Chevrolet Silvera...

Chevrolet Silverado 1500

Chevrolet Silvera...

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Crash Tests

IIHS Front Moderate Overlap

IIHS Front Small Overlap, Driver

IIHS Side Crash

NHTSA Overall Crash

NHTSA Overall Frontal-Crash

NHTSA Overall Side-Crash

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Crash Tests

IIHS Front Moderate Overlap

IIHS Front Small Overlap, Driver

IIHS Side Crash

NHTSA Overall Crash

NHTSA Overall Frontal-Crash

NHTSA Overall Side-Crash

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GMC vs. Other New Car Brands

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Owner Reports

Owner Satisfaction Owner Satisfaction

2000

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2007

2008

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2020

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2024

Driving Experience

Comfort

Value

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GMC vs. Other New Car Brands

See How All Brands Stack up

GMC vs. Other New Car Brands

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Crash Tests

IIHS Front Moderate Overlap

IIHS Front Small Overlap, Driver

IIHS Side Crash

NHTSA Overall Crash

NHTSA Overall Frontal-Crash

NHTSA Overall Side-Crash

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2008 Full-sized pickup trucks Ratings

2008 GMC Sierra 2500HD

$ NA

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2008 Chevrolet Avalanche

$6,700 - $7,525

EPA MPG 17 mpg

Road test

Reliability

Owner Satisfaction

2008 Chevrolet Silverado 1500

$6,250 - $10,775

EPA MPG 18 mpg

Road test

Reliability

Owner Satisfaction

2008 Chevrolet Silverado 2500HD

$ NA

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2008 Chevrolet Silverado 3500HD

$ NA

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2008 Dodge Ram 1500

$3,500 - $9,250

EPA MPG 16 mpg

Road test

Reliability

Owner Satisfaction

2008 Dodge Ram 2500

$5,000 - $15,025

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2008 Dodge Ram 3500

$7,425 - $17,850

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2008 Ford F-150

$5,650 - $11,500

EPA MPG 16 mpg

Road test

Reliability

Owner Satisfaction

2008 Ford F-250

$6,100 - $12,850

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2008 Ford F-350

$6,350 - $14,025

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2008 GMC Sierra 1500

$5,400 - $11,850

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2008 GMC Sierra 3500HD

$ NA

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2008 Lincoln Mark LT

$8,650 - $10,000

EPA MPG NA

Road test

Reliability

Owner Satisfaction

2008 Nissan Titan

$4,525 - $7,875

EPA MPG 16 mpg

Road test

Reliability

Owner Satisfaction

2008 Toyota Tundra

$7,975 - $12,825

EPA MPG 16 mpg

Road test

Reliability

Owner Satisfaction

See All Full-sized pickup trucks Ratings

Features & Specs

extended cab

regular cab

crew cab

2 front, 3 rear

4WD, Rear

6-liter V8 (353 hp)
6.6-liter V8 turbodiesel (365 hp)

6-speed automatic

In most cases, automotive warranties are based on the vehicle identification number (VIN), and the warranty will be valid regardless of ownership. The dealership can tell you exactly how much warranty is left.

Read more about extended warranties

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Model History

2020-Present

Current Generation

The redesigned, next-generation Sierra HD's exterior is more visually distinguished from the Sierra 1500. Aside from its roof, which is shared with the light-duty Sierra, all other visible elements are unique to the work-focused HD truck. The standard engine is a 401-hp, 6.6-liter V8 with a six-speed transmission. A 445-hp, 6.6-liter turbodiesel V8 engine with a 10-speed transmission is also available. The new truck is 10 inches longer than the previous one, which translates to more legroom. GM claims that the new HD, when properly equipped, can tow up to 35,500 pounds. Available safety features include forward collision warning, automatic emergency braking, lane departure warning, blind spot warning, and rear cross traffic warning.

2015-2019

2015 Redesign Year

These trucks are much stiffer and ride less comfortably than the standard Silverado 1500 (1/2 ton). They are designed for hard work and a 3/4 ton capacity. The ride is bouncy but the available engines include a relatively refined, Isuzu-developed 6.6-liter turbodiesel V8 and a huge 8.1-liter, 340-hp V8. The 2007 redesign brought a new 6.0-liter V8 in addition to the older 6.6-liter V8 turbodiesel. The latter engine is very powerful but returned just 13 mpg overall. The six-speed Allison transmission is very smooth.

2011-2014

2011 Redesign Year

2007-2010

2007 Redesign Year

2000-2006

2000 Redesign Year