• (4.7) 18 reviews
  • Inventory Prices: $31,922–$64,342
  • Body Style: Truck
  • Combined MPG: N/A
  • Engine: 360-hp, 6.0-liter V-8 (regular gas)
  • Drivetrain: 4x2
  • Towing Capacity: 13,000 lbs.
2015 GMC Sierra 2500

Our Take on the Latest Model 2015 GMC Sierra 2500

What We Don't Like

  • Manual transmission not offered

Notable Features

  • 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

2015 GMC Sierra 2500 Reviews

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

(4.7)

Average based on 18 reviews

Write a Review

Beautiful Truck

by Todd from Umatilla, Fl on October 25, 2017

This Denali is top notch - a real head turning vehicle. The vehicle is extremely user friendly - comfort is not a problem and the vehicle has plenty of room. I am looking forward to checking how the T... Read Full Review

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30 Trims Available

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Wondering which configuration is right for you?
Our 2015 GMC Sierra 2500 trim comparison will help you decide.

2015 GMC Sierra 2500 Safety Ratings

Crash-Test Reports

NHTSA Ratings

Based on GMC Sierra 2500 Base

Overall
Overall Front
Overall Side
Overall Rollover Rating

NHTSA Ratings

Based on GMC Sierra 2500 Base

Overall
Overall Front
Overall Side
Overall Rollover Rating
Driver's
Passenger's
Side Barrier
Side Barrier Rating Driver
Side Barrier Rating Passenger Rear Seat
Side Pole
Side Pole Barrier combined (Front)
Side Pole Barrier combined (Rear)
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.

Service & Repair

Estimated Service & Repair cost: $2,200 per year.

Save on maintenance costs and do your own repairs.

Warranty Coverage

Bumper-to-Bumper

36mo/36,000mi

Powertrain

60mo/100,000mi

Roadside Assistance Coverage

60mo/100,000mi

Free Scheduled Maintenance

24mo/24,000mi

What you should get in your warranty can be confusing. Make sure you are informed.

Learn More About Warranties

Warranties Explained

Bumper-to-Bumper

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.

Powertrain

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.

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).

Free Scheduled Maintenance

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.

Other Years