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2015 GMC Sierra 2500

$28,768 — $61,216 USED
Truck
2-6 Seats
Key specs of the base trim
 — 
Compare 4 trims

Overview

Is this the car for you?

The Good

  • Overall range of power, looks, utility and comfort
  • Standard trailer-sway control
  • Refined interior

The Bad

  • Manual transmission not offered
2015 GMC Sierra 2500 exterior side view

What to Know

about the 2015 GMC Sierra 2500
  • Redesigned for 2015
  • OnStar with 4G LTE and Wi-Fi hot-spot capability available
  • Bi-fuel version can run on gasoline or CNG
  • Gas or diesel V-8 also offered
  • Luxurious Denali model available

Our Take

from the Cars.com expert editorial team

Vehicle Overview

Sharing much of the same underpinnings with the Chevrolet Silverado heavy-duty pickup truck, the GMC Sierra HD provides truck buyers with a bit more style and luxury — especially in Denali trim. Competitors include the Ford F-Series Super Duty and Ram 2500 and 3500.
New for 2015
The Sierra 2500HD and 3500HD have been redesigned and have new styling inside and out.

Below is a list of highlighted features and not an exhaustive list. Features are standard unless otherwise noted.

Exterior Highlights

  • Regular-cab, double-cab and crew-cab body styles
  • Standard or long bed
  • Available dual rear wheels (3500HD)
  • Available All Terrain Package
  • 17-inch wheels; 18- or 20-inch wheels available
  • Available heated and power-adjustable camper-style side mirrors
  • Available power sunroof

Interior Highlights

  • Seats up to six people in certain versions
  • Vinyl, cloth or leather upholstery
  • Front bench or bucket seats
  • Available Bluetooth connectivity
  • Available navigation system
  • Available power-adjustable pedals
  • Available power-sliding rear window
  • Available OnStar with 4G LTE and Wi-Fi hot spot
  • Available backseat entertainment system with 9.2-inch screen

Under the Hood

  • 360-horsepower, 6.0-liter gas V-8 engine makes 380 pounds-feet of torque (301 hp and 333 pounds-feet of torque when running on CNG in properly equipped trucks)
  • Available 397-hp, turbo-diesel 6.6-liter V-8 makes 765 pounds-feet of torque
  • Both engines work with a six-speed automatic transmission
  • Turbo-diesel has an exhau...
Vehicle Overview

Sharing much of the same underpinnings with the Chevrolet Silverado heavy-duty pickup truck, the GMC Sierra HD provides truck buyers with a bit more style and luxury — especially in Denali trim. Competitors include the Ford F-Series Super Duty and Ram 2500 and 3500.
New for 2015
The Sierra 2500HD and 3500HD have been redesigned and have new styling inside and out.

Below is a list of highlighted features and not an exhaustive list. Features are standard unless otherwise noted.

Exterior Highlights

  • Regular-cab, double-cab and crew-cab body styles
  • Standard or long bed
  • Available dual rear wheels (3500HD)
  • Available All Terrain Package
  • 17-inch wheels; 18- or 20-inch wheels available
  • Available heated and power-adjustable camper-style side mirrors
  • Available power sunroof

Interior Highlights

  • Seats up to six people in certain versions
  • Vinyl, cloth or leather upholstery
  • Front bench or bucket seats
  • Available Bluetooth connectivity
  • Available navigation system
  • Available power-adjustable pedals
  • Available power-sliding rear window
  • Available OnStar with 4G LTE and Wi-Fi hot spot
  • Available backseat entertainment system with 9.2-inch screen

Under the Hood

  • 360-horsepower, 6.0-liter gas V-8 engine makes 380 pounds-feet of torque (301 hp and 333 pounds-feet of torque when running on CNG in properly equipped trucks)
  • Available 397-hp, turbo-diesel 6.6-liter V-8 makes 765 pounds-feet of torque
  • Both engines work with a six-speed automatic transmission
  • Turbo-diesel has an exhaust-brake system that provides greater control on downhill grades and reduced brake-pad wear
  • Rear- or four-wheel drive

Safety Features

  • Required in every new car: front airbags, antilock brakes and an electronic stability system
  • Trailer-sway control and hill start assist
  • Available backup camera
  • Available front and rear parking sensors
  • Available lane departure warning
  • Available forward collision warning

Consumer Reviews

What drivers are saying

4.7
27 reviews — Read All reviews
Exterior Styling
(4.9)
Performance
(4.7)
Interior Design
(4.8)
Comfort
(4.9)
Reliability
(4.7)
Value For The Money
(4.4)

Read reviews that mention:

(4.0)

Buy the diesel version if you can afford it

by Kb on August 9, 2018

Everything is great as far as comfort, style and reliability. However with any gas heavy duty there?s just no power and the mpg isn?t to brag about. Read full review

(4.0)

Not bad at all

by Jdog from Overland park on May 3, 2018

Most trucks are overpriced bad. They are still nice to drive take for a spin even if you don’t buy them. I’m more parcel to the Tundra or the Titan though Read full review

Safety

Recalls and crash tests

Recalls

The 2015 GMC Sierra 2500 currently has 0 recalls


Crash and Rollover Test Ratings

Based on 2015 GMC Sierra 2500 Base

NHTSA rates vehicles using a star rating system from 1-5 stars, with 5 being the highest.

Overall
3 Star
Overall Front
2 Star
Overall Side
5 Star
Driver's
2 Star
Passenger's
2 Star
Side Barrier
5 Star
Side Barrier Rating Driver
5 Star
Side Pole
5 Star
Side Pole Barrier combined (Front)
5 Star
National Highway Traffic Safety Administration (NHTSA) is part of the U.S. Department of Transportation. NHTSA provides vehicle safety information such as front- and side-crash ratings and rollover ratings. Vehicles are rated using a star rating system from 1-5 stars, with 5 being the highest.

Warranty

New car and certified pre-owned programs by GMC

New Car Program Benefits

  • Bumper-to-Bumper

    36 months / 36,000 miles

  • Powertrain

    60 months / 100,000 miles

  • Roadside Assistance

    60 months / 100,000 miles

Certified Pre-Owned Program Benefits

  • Maximum Age/Mileage

    5 model years or newer/up to 75,000 miles

  • Basic Warranty Terms

    12 months/12,000 miles bumper-to-bumper original warranty, then may continue to 6 years/100,000 miles limited (depending on variables)

  • Powertrain

    6 years/100,000 miles

  • Dealer Certification Required

    172-point inspection

  • Roadside Assistance

    Yes

  • View All CPO Program Details

Latest 2015 Sierra 2500 Stories

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Cars.com Car Seat Check

Certified child passenger safety technicians conduct hands-on tests of a car’s Latch system and check the vehicle’s ability to accommodate different types of car seats. The Sierra 2500 received the following grades on a scale of A-F.*
* This score may not apply to all trims, especially for vehicles with multiple body styles that affect the space and design of the seating.

Warranty FAQs

What is a Bumper-to-Bumper warranty?

Often called a basic warranty or new-vehicle warranty, a bumper-to-bumper policy covers components like air conditioning, audio systems, vehicle sensors, fuel systems and major electrical components. Most policies exclude regular maintenance like fluid top offs and oil changes, but a few brands have separate free-maintenance provisions, and those that do offer them is slowly rising. Bumper-to-bumper warranties typically expire faster than powertrain warranties.

What is a Powertrain warranty?

Don't be misled a 10-year or 100,000-mile powertrain warranty doesn't promise a decade of free repairs for your car. It typically covers just the engine and transmission, along with any other moving parts that lead to the wheels, like the driveshaft and constant velocity joints. Some automakers also bundle seat belts and airbags into their powertrain warranties. With a few exceptions, powertrain warranties don't cover regular maintenance like engine tuneups and tire rotations.

What is included in Roadside Assistance?

Some automakers include roadside assistance with their bumper-to-bumper or powertrain warranties, while others have separate policies. These programs cover anything from flat-tire changes and locksmith services to jump-starts and towing. Few reimburse incidental costs like motel rooms (if you have to wait for repairs).

What other services could be included in a warranty?

Some automakers include free scheduled maintenance for items such as oil changes, air filters and tire rotations. Some include consumables including brake pads and windshield wipers; others do not. They are typically for the first couple of years of ownership of a new car.

What does CPO mean?

A certified pre-owned or CPO car has been inspected to meet minimum quality standards and typically includes some type of warranty. While dealers and third parties certify cars, the gold standard is an automaker-certified vehicle that provides a factory-backed warranty, often extending the original coverage. Vehicles must be in excellent condition and have low miles and wear to be certified, which is why off-lease vehicles feed many CPO programs.

See also the latest CPO incentives by automaker