2015 GMC Sierra 3500

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$33,256–$62,936 Inventory Prices
(5.0) 8 reviews
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Key Specs
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Overview
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Key Specs

of the 2015 GMC Sierra 3500. Base trim shown.

  • Body Type:
    Truck
  • Engine:
    360-hp, 6.0-liter V-8 (regular gas)
  • Drivetrain:
    4x2
  • Towing Capacity:
    13,000 lbs.
  • View more specs

Our Take

From the Cars.com Vehicle Test Team

The Good

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

The Bad

  • Manual transmission not offered

Notable Features of the 2015 GMC Sierra 3500

  • 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 3500 Overview

By Cars.com Editors
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

2015 Sierra 3500 Video

We knew putting together a one-ton comparison test wasn't going to be easy, but we knew it was time to get the big boys of the pickup truck world back together to see who sits at the top of the heap.

Latest 2015 Sierra 3500 Stories

Consumer Reviews

Exterior Styling
(5.0)
Performance
(5.0)
Interior Design
(5.0)
Comfort
(5.0)
Reliability
(5.0)
Value For The Money
(4.8)

What Drivers Are Saying

(5.0)

Most reliable truck

by Abumalack from Tigard on October 31, 2017

Best truck ever, will buy another one if I can afford it. Gmc 3500 hd with long bed . Everything a man need Read full review

(5.0)

really nice well-built truck

by Butch from Little Rock, Arkansas on September 18, 2017

great styling, easy to use controls, trailer hitch already installed, good tires, no dents, and the paint showed no damage. Read full review

Safety & Recalls

Recalls

The 2015 GMC Sierra 3500 currently has 5 recalls

Crash and Rollover Test Ratings

The 2015 GMC Sierra 3500 has not been tested.

Manufacturer Warranty

  • Bumper-to-Bumper

    36 months / 36,000 miles

  • Powertrain

    60 months / 100,000 miles

  • Roadside Assistance

    60 months / 100,000 miles

CPO Program & Warranty

Certified Pre-Owned by GMC

Program Benefits

Two Factory-Backed Warranties, CPO Scheduled Maintenance Program, Vehicle Inspection & Reconditioning, 3-Day/150-Mile Vehicle Exchange Program, 24/7 Roadside Assistance and Courtesy Transportation, OnStar & SiriusXM Satellite Radio Trial Offers, and a Carfax Vehicle History Report

  • Limited Warranty

    Two Factory-Backed Warranties

    6-Year/100,000-Mile, Powertrain Limited Warranty and a 12- Month/12,000-Miles, Bumper-to-Bumper Limited Warranty, both with $0 deductible
  • Eligibility

    Under 5 years / 75,000 miles

    Vehicles receive a 172-Point Vehicle Inspection and Reconditioning.

    See inspection details.

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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 3500 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