• (4.8) 44 reviews
  • MSRP: $24,611–$45,503
  • Body Style: Truck
  • Combined MPG: 18-21
  • Engine: 285-hp, 4.3-liter V-6 (regular gas)
  • Drivetrain: 4x2
  • Towing Capacity: 5,600 lbs.
2015 GMC Sierra 1500

Our Take on the Latest Model 2015 GMC Sierra 1500

What We Don't Like

  • Could be more distinct from Chevrolet Silverado
  • No long-bed extended-cab model
  • No diesel-engine option

Notable Features

  • OnStar with 4G LTE and Wi-Fi hotspot capability available
  • New eight-speed automatic transmission available
  • Magnetic Ride Control for Sierra Denali models
  • New Elevation and Carbon editions
  • Forward collision warning available

2015 GMC Sierra 1500 Reviews

Vehicle Overview

The Sierra 1500 is GMC's entrant in the half-ton pickup truck segment. Competitors include the Ford F-150, Ram 1500 and Toyota Tundra. It was redesigned last year.
New for 2015
Sierras with the available 6.2-liter V-8 engine get a new eight-speed automatic transmission while the upscale Sierra Denali trim level gains GM's Magnetic Ride Control adaptive suspension system. The IntelliLink multimedia system adds text message alerts and Apple Siri Eyes Free mode.

New available features include a spray-on bedliner with a raised GMC logo and trailering mirrors with LED rear guide lights. Also available is the OnStar communication system with 4G LTE internet connectivity and a built-in Wi-Fi hotspot. A three-month/3-gigabyte data trial is included.

Elevation and Carbon editions of the Sierra are also new. The Sierra Elevation Edition features a body-colored grille surround and body-colored trim pieces, including the bumpers, for a monochrome look. Additional features include LED headlights and black 20-inch aluminum wheels. The Carbon Edition is appearance-focused as well, with carbon-fiber-style hood stripes, a black grille and body-colored exterior trim. It also has black tubular side steps and 22-inch aluminum wheels. Versions with smaller wheels are also offered.

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

Exterior Highlights

  • Three cab styles
  • Three box lengths
  • 17-inch steel wheels; 17-, 18-, 20- and 22-inch aluminum wheels available
  • Projector-beam headlights
  • Integrated rear bumper steps
  • Available adjustable tie-down hooks
  • Available assisted tailgate for easier closing, softer opening

Interior Highlights

  • 40/20/40-split front bench seat or bucket seats
  • Vinyl, cloth or leather upholstery
  • Available heated and cooled front seats
  • Controls designed for work gloves, according to GMC
  • 3.5-inch screen in instrument panel; available 4.2-inch color display
  • Cruise control
  • Air conditioning
  • Available Bluetooth connectivity
  • Available navigation system
  • Available heated steering wheel

Under the Hood

  • 285-horsepower, 4.3-liter V-6 engine
  • Available 355-hp, 5.3-liter V-8
  • Available 420-hp, 6.2-liter V-8
  • Six-speed automatic transmission; eight-speed automatic with 6.2-liter V-8
  • Rear- or four-wheel drive
  • Available automatic locking rear differential

Safety Features

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


Consumer Reviews


Average based on 44 reviews

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by Rxmpo from Warwick,NY on November 9, 2017

It is a Sierra Denali with sunroof, standard box, 6.2L 8 speed. Do I need to say more? Love...love this truck!

Read All Consumer Reviews

30 Trims Available

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Wondering which configuration is right for you?
Our 2015 GMC Sierra 1500 trim comparison will help you decide.

2015 GMC Sierra 1500 Safety Ratings

Crash-Test Reports

IIHS Ratings

Based on GMC Sierra 1500 Base

Moderate overlap front

IIHS Ratings

Based on GMC Sierra 1500 Base

G Good
A Acceptable
M Marginal
P Poor

Moderate overlap front

Left Leg/Foot
Overall Front
Right Leg/Foot
Structure/safety cage
Insurance Institute for Highway Safety (IIHS) is a nonprofit research and communications organization funded by auto insurers. IIHS rates vehicles good, acceptable, marginal or poor based on performance in high-speed front and side crash tests. IIHS also evaluates seat/head restraints for protection against neck injuries in rear impacts.

NHTSA Ratings

Based on GMC Sierra 1500 Base

Overall Front
Overall Side
Overall Rollover Rating

NHTSA Ratings

Based on GMC Sierra 1500 Base

Overall Front
Overall Side
Overall Rollover Rating
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.


There are currently 13 recalls for this car.

Safety defects and recalls are relatively common. Stay informed and know what to do ahead of time.

Safety defects and recalls explained

Service & Repair

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

Save on maintenance costs and do your own repairs.

Warranty Coverage





Roadside Assistance Coverage


Free Scheduled Maintenance


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

Learn More About Warranties

Warranties Explained


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.


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