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2018 GMC Terrain
#3 Most Fuel Efficient SUVs of 2018

Used 2018 GMC Terrain

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3.9
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2018 GMC Terrain Exterior: 0
2018 GMC Terrain Exterior: 1
Exterior (35)
2018 GMC Terrain Interior: 0
Interior (45)
2018 GMC Terrain All Media: 1

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2026
2018
Fuel Economy
28 - 32 combined mpg
Horsepower
137 - 252 hp
Seating
5
Cargo Volume
63.3 cu ft
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2018 GMC Terrain Overview

2018 GMC Terrain Pricing

2018 GMC Terrain pricing starts at $13,476 for the Terrain SL Sport Utility 4D, which had a starting MSRP of $25,990 when new. The range-topping 2018 Terrain Denali Sport Utility 4D starts at $18,166 today, originally priced from $40,295.

Original MSRP
KBB Fair Purchase Price (national avg.)
SL Sport Utility 4D
$25,990
$13,476
$28,895
$13,635
$32,395
$14,268
$34,395
$15,435
$35,195
$14,198
$40,295
$18,166

The Kelley Blue Book Fair Purchase Price for any individual used vehicle can vary greatly according to mileage, condition, location, and other factors. The prices here reflect what buyers are currently paying for used 2018 GMC Terrain models in typical condition when purchasing from a dealership. These prices are updated weekly.

Terrain Consumer Sentiment

Owners give this generation GMC Terrain (2018-2024) a 3.9 out of 5 rating, which is higher than most, and 70% recommend it. These figures are based on 70 consumer reviews, like these:

What Owners are Saying About the 2018 GMC Terrain

"Terrain all the way!"

"This is our second Terrain. The first one saved my husband's life. He hit a tree headon and came out with just a broken leg. The airbags did their job. The vehicle I drove before was a Jeep Cherokee LE. I currently have a Terrain SLE. I did sacrifice some luxuries for the Terrain but the look of the black edition makes it worth it. I have had comments that we paid alot more for the vehicle than we actually did. It handles well and I would definitely buy another so far."

"SURPRISINGLY SATISFYING!"

"While I haven’t had this new Terrain very long yet, I find its size “just right” for 1 to 4 or 5 folks in city, small town and freeway driving. The Denali 2 liter turbo with AWD and traction control is great in all kinds of weather. Comfortable as can be. I LOVE THE DENALI GRILL!!! That, along with the high level of trim and outside light design and trim makes it feel like I’m driving a piece of jewelry. I don’t drive long-distance all that much since retirement, so gas mileage isn’t a big factor for me. The amazing variety of tech takes a while to learn... and the push-button gear selection takes some getting used to, but when you do, it becomes second nature... I love the “L” option allowing driver to shift to whichever of the 9 gears he needs. Great camera system for virtual 360º views, proximity warnings, driver’s seat vibrates and windshield blinks bright red to warn of cars , objects or people entering the car’s “personal” space. Overall length is a few inches shorter than the Mazda CX7 I traded in... so a bit more room in the garage. Very adequate and adaptable cargo space. Tire pressure readings on all four wheels with specific lbs/per read-outs. Nice large nav screen with good infotainment selection. Kick-open rear hatch, nice! Self-regulating high beams... heated front and rear seats with separate heating controls... I could go on and on... but bottom line for me is, the price for the Denali is high, but in the end, I thionk it is worth it, despite what some naysayers seem to think."

"combined MPG AVG CITY AND HIGHWAY BEEN 29.5 MPG"

"LIKE THE COMBINED MPG WHICH HAS BEEN 29.5 CITY AND HIGHWAY, VERSUS SUV I OWNED WAS 24.5 MPG COMBINED CITY, HIGHWAY. TERRAIN IS 5 MPG BETTER.ON MONTHLY DRIVING 1,700 MILES A MONTH THE TERRAIN FUEL FOR MONTH IS 57.6 GAL. WHILE OTHER SUV 69.6 GAL. ALMOST 12 GALLONS SAVED A MONTH THATS EQUAL TO 1 LESS TANK OF GAS USED A MONTH. FAIR AMOUNT SAVINGS PER MONTH."

Overall 2018 GMC Terrain Quality

User sentiment suggests the overall quality of the 2018 GMC Terrain is above average for its class. Owners rated the 2018 GMC Terrain quality a 3.9 out of 5.

2018 GMC Terrain Reliability

The 2018 GMC Terrain receives an average consumer rating of 3.9 overall and a 4 for reliability, which means owners consider its reliability to be above average.

Favorite 2018 Terrain Features

According to drivers of the 2018 Terrain, here are some of its best features:

  • Style
  • Luxurious, zippy, “feels good”
  • 252 hp turbo engine
  • Fun to drive, great performance, looks great.
  • Stable, good gas mileage, lots of room.

2018 GMC Terrain MPG by Trim

2018 Terrain SL Sport Utility 4D - city 26 MPG - hwy 30 MPG

2018 Terrain SLE Sport Utility 4D - city 26 MPG - hwy 30 MPG

2018 Terrain SLT Diesel Sport Utility 4D - city 28 MPG - hwy 39 MPG

2018 Terrain SLT Sport Utility 4D - city 26 MPG - hwy 30 MPG

2018 Terrain SLE Diesel Sport Utility 4D - city 28 MPG - hwy 38 MPG

2018 Terrain Safety

2018 GMC Terrain Safety Features

  • Child Door Locks
  • Child Seat Anchors
  • Driver Airbag
  • Passenger Airbag
  • Stability Control
  • Traction Control
  • Emergency & Security Services
  • Front Head Curtain Airbag
  • Front Side Airbag
  • Parental Control System
  • Rear Head Curtain Airbag
  • Rear View Camera
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2018 GMC Terrain
KBB.com Consumer Reviews

3.9
Consumer Rating
Based on 70 Consumer Reviews
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70%Recommend this vehicle
5
50%
5
50%
4
20%
4
20%
3
10%
3
10%
2
9%
2
9%
1
11%
1
11%
Value
3.9
Performance
3.9
Quality
3.9
Comfort
4.1
Reliability
4.0
Styling
4.3

Trending Topics in KBB.com Consumer Reviews

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2018 GMC Terrain Styles

Style
Price
Combined Fuel Economy
Horsepower
Seating
Cargo Capacity
Engine
Towing Capacity
Curb Weight
Drivetrain
SL Sport Utility 4D
$13,476
28 MPG
170 @ 5600 RPM
5
63.3 cu ft
4-Cyl, 1.5 Liter
1500 lbs
3449 lbs
FWD
SLT Sport Utility 4D
$14,268
28 MPG
170 @ 5600 RPM
5
63.3 cu ft
4-Cyl, 1.5 Liter
1500 lbs
3487 lbs
FWD
SLE Sport Utility 4D
$13,635
28 MPG
170 @ 5600 RPM
5
63.3 cu ft
4-Cyl, 1.5 Liter
1500 lbs
3449 lbs
FWD
SLT Diesel Sport Utility 4D
$14,198
32 MPG
137 @ 3750 RPM
5
63.3 cu ft
4-Cyl, Turbo Dsl, 1.6L
1500 lbs
3658 lbs
FWD
SLE Diesel Sport Utility 4D
$15,435
32 MPG
137 @ 3750 RPM
5
63.3 cu ft
4-Cyl, Turbo Diesel, 1.6 Liter
1500 lbs
3815 lbs
AWD
Denali Sport Utility 4D
$18,166
N/A
252 @ 5500 RPM
5
63.3 cu ft
4-Cyl, Turbo, 2.0 Liter
3500 lbs
3801 lbs
AWD
See Full Specs for All 2018 GMC Terrain Styles
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Specifications

Dimensions, Weights & Capacities

Curb Weight
3449 lbs.
Fuel Capacity
14.9 gallons
Front Head Room
40.0 inches
Front Leg Room
40.9 inches
Max Seating Capacity
5
Minimum Ground Clearance
6.9 inches
Overall Length
182.3 inches
Front Shoulder Room
57.2 inches
Towing Capacity, Maximum
1500 lbs.
Trunk or Cargo Capacity
63.3 cu.ft.
Turning Diameter
37.4 feet
Wheel Base
107.3 inches
Gross Vehicle Weight Rating (GVWR)
4464 lbs.
Payload Capacity
1146 lbs.

Exterior

Alloy Wheels
Available
HID Headlights
Available
Number of Doors
4 doors
Privacy Glass
Available

Fuel Economy

City
26 mpg
Highway
30 mpg
Combined
28 mpg

Mechanical

Drivetrain
FWD
Transmission Type
Automatic
9 speed
Available
Recommended Fuel
Premium
Hill Descent Control
Available

Performance

Horsepower
170 @ 5600 RPM
Torque
203 @ 2500 rpm
Engine
4-Cyl, 1.5 Liter

Warranty

Basic
3 years / 36000 miles
Powertrain
5 years / 60000 miles
Corrosion
6 years / 100000 miles

Entertainment

  • Bluetooth Streaming Audio

Interior

  • Leather-Wrapped Steering Wheel
  • Power Windows
  • 12V Power Outlet
  • Power Outlet
  • Steering Wheel Controls

Seating

  • Folding Rear Seat
  • Cloth Seats

Security

  • Alarm System

Technology

  • Bluetooth Wireless Technology
  • Cruise Control
  • Hands Free Phone
  • Navigation System
  • Remote Keyless Entry
  • Internet Access
  • Push-Button Engine Start
  • Smartphone Interface
  • Touch Screen Monitor
  • USB Port

2018 GMC Terrain Safety

2018 GMC Terrain Safety Technology

  • Child Door Locks
  • Child Seat Anchors
  • Driver Airbag
  • Passenger Airbag
  • Stability Control
  • Traction Control
  • Emergency & Security Services
  • Front Head Curtain Airbag
  • Front Side Airbag
  • Parental Control System
  • Rear Head Curtain Airbag
  • Rear View Camera
5.0

Crash Test Rating

Provided by the National Highway Traffic Safety Administration
Frontal Crash
5.0
Side Barrier
5.0
Rollover Rating
4.0
Side Crash
5.0

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See Details
Price
$13,476
$13,931
$14,079
$11,471
KBB.com Rating
N/A
N/A
4.6
4.3
Consumer Rating
3.9
4.1
4.1
4.5
Fuel Economy
City 26/Hwy 30/Comb 28 MPG
City 31/Hwy 34/Comb 33 MPG
City 28/Hwy 34/Comb 31 MPG
City 29/Hwy 34/Comb 31 MPG
Fuel Type
Gas
N/A
N/A
N/A
Safety Rating
5.0
4.0
5.0
5.0
Seating Capacity5555
Basic Warranty
3 years or 36000 miles
3 years or 36000 miles
3 years or 36000 miles
3 years or 36000 miles
Horsepower
170 @ 5600 RPM
176 @ 6000 RPM
141 @ 6500 RPM
146 @ 6000 RPM
Engine
4-Cyl, 1.5 Liter
4-Cyl, Hybrid, 2.0 Liter
4-Cyl, i-VTEC, 1.8 Liter
4-Cyl, SKYACTIV-G, 2.0 Liter
Drivetrain
FWD
AWD
2WD
FWD

2018 GMC Terrain Rankings

More GMC Terrain News & Information

Luxury Compact SUV
2025 GMC Terrain Sees $1,300 Price Bump

The redesigned GMC Terrain sees a price bump of $1,300 for 2025.

Sean Tucker January 07, 2025
Compact SUV Crossover
2025 GMC Terrain Debuts With New Tech, Style

GMC lifted the curtain on the 2025 Terrain today, giving its smallest SUV a much-needed update to stay competitive in…

Matt Degen August 12, 2024

FAQs

How reliable is the 2018 GMC Terrain?

Kelley Blue Book users rate the 2018 GMC Terrain reliability 5 out of 5 stars, which is far above average for a vehicle of its class.

Is 2018 a good year for a GMC Terrain?

Owners of the vehicle give it 3.9 out of 5 stars. To find out if the 2018 Terrain is the right car for you, check out the pros and cons, trims, specs and options at Kelley Blue Book.

Is the GMC Terrain 2018 a good SUV?

Owners of the vehicle give it 3.9 out of 5 stars. To find out if the 2018 Terrain is the right car for you, check out the pros and cons, trims, specs and options at Kelley Blue Book.

What is the MPG for a 2018 GMC Terrain?

The 2018 GMC Terrain gets 26 mpg in the city and 30 mpg on the highway.

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