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2015 GMC Terrain

Research, photos, specs, and expertise

GMC Terrain highlights

Customer reviews

3.8 out of 5

RepairPal reliability rating

4.5 out of 5


  • Spacious backseat that slides and reclines for added comfort
  • Available V6 engine makes this crossover faster than even modern competitors
  • Interior stays quiet at highway speeds
  • Supple suspension soaks up impacts on rough roads
  • Some advanced driver aids available


  • Four-cylinder engine feels sluggish
  • Less cargo space than many rivals
  • Touchscreen is hard to reach

Mileage (EPA estimate)

22 city, 32 highway, 26 combined

Pricing for current inventory

(no current inventory)


Comfortable interior and upscale Denali are key 2015 GMC Terrain strengths

The 2015 GMC Terrain received an available 4G LTE Wi-Fi hotspot, the only noteworthy change for this compact SUV, whose comfortable interior, smooth ride and powerful V6 engine remain strengths to this day. Wi-Fi hotspots require a data plan to activate and may also require a compatible device. See the owner's manual or manufacturer website for more information.

If fuel economy is a priority the standard 2.4-liter four-cylinder gets the job done, but the available 3.6-liter V6 engine, which is powerful enough to outpace even modern compact SUVs, is hard to resist. The rear seats stand out in the quiet and comfortable interior thanks to the 8-inches they can move forward and backward. The dozens of infotainment and climate control buttons on the dash make the Terrain look dated, but might be preferable if you don’t like touchscreens.

It’s not realistic to expect modern tech like smartphone integration on a vehicle from 2015, but SLE-2 and higher trims feel a bit more modern thanks to Bluetooth® streaming audio in addition to the standard USB audio input. Available driver assist tech includes forward-collision warning and lane-departure alert, with blind-spot monitoring and rear cross-traffic alert exclusive to the Denali trim.

All GMC Terrain years

New for 2015

  • The Terrain is available in a new trim called the SL.
  • Terrain trims have been upgraded with Power Hatch/Deck Lid and Tow Hitch as standard equipment this year.
  • Running Boards features are now available as options on select trims.
  • The SLT trim now comes with Sunroof(s), Memory Seat(s), Parking Sensors, and Lane Departure Warning as standard equipment.

Explore GMC Terrain details

Denali 2WD 4D Sport Utility

Standard Features

  • ABS Brakes
  • Air Conditioning
  • Alloy Wheels
  • AM/FM Stereo
  • Automatic Transmission
  • Auxiliary Audio Input
  • Blind Spot Monitor
  • Bluetooth Technology
  • CD Audio
  • Cruise Control
  • Front Seat Heaters
  • Lane Departure Warning
  • Leather Seats
  • Memory Seat(s)
  • Overhead Airbags
  • Parking Sensors
  • Pioneer Sound System
  • Power Hatch/Deck Lid
  • Power Locks
  • Power Mirrors
  • Power Seat(s)
  • Power Windows
  • Rear Defroster
  • Rear View Camera
  • Remote Start
  • Satellite Radio Ready
  • Side Airbags
  • Sunroof(s)
  • Traction Control

Optional Features

  • Automatic Transmission
  • Bluetooth Technology
  • CD Audio
  • DVD Video System
  • Flex Fuel Vehicle
  • Full Roof Rack
  • Navigation System
  • Tow Hitch

Drive type


Engine size




Torque (ft-lbs)


Engine type


Fuel capacity




Overall length






Leg room

F 41.2"/R 39.9"

Head room

F 39.8"/R 39.2"

Front tires


Rear tires


Seating capacity


Max towing capacity

150/1500 lbs.



5 reasons to buy the 2015 GMC Terrain

What We Like

V6 Power: The powerful V6 engine available in the 2015 GMC Terrain manages to outpace even newer compact SUVs, thanks to its 301 horsepower. It can also tow up to 3,500 pounds when properly equipped, which is quite good for this class.

Of course fuel economy trails more modern SUVs, but if you need extra oomph, the Terrain has you covered.

Rear Seat Flexibility: The sliding rear seat remains a strength of the GMC Terrain to this day. When the sliding seat is in its rearmost position, it actually has more rear seat room than its successor (2018-present). Slide it all the way forward, and cargo space is a bit better than newer Terrains, too.

Interior Comfort: The GMC Terrain’s comfortable and quiet interior remains unperturbed by rough surfaces, gliding over them seamlessly. The Terrain Denali is even smoother, befitting its luxury-level status.

What Needs Improvement

Interior Controls: First introduced for the 2010 model year, by 2015 the Terrain was getting on in years, as evidenced by its confusing climate control and infotainment interface. The small touchscreen is a long reach from the driver, and the dozens of physical buttons below it look and feel alike, making them hard to use without taking your eyes off the road. You can look at contemporary rivals for better solutions.

Ratings & reliability

Customer ratings

RepairPal reliability rating


RepairPal gave the GMC Terrain an overall reliability rating of 4.5 out of 5 stars, which RepairPal describes as Excellent. This rating ranks GMC Terrain 9th out of 27 among Compact SUVs.

View RepairPal's full rating of the GMC Terrain

2015 GMC Terrain trims

More about the 2015 GMC Terrain

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