2010 GMC Terrain MPG and Fuel Cost

The 2010 GMC Terrain is rated 20 to 26 mpg combined across 4 EPA-tested gas versions; the best is the 2.4L 4-cyl · FWD · 6-speed automatic.

EPA fuel economy

2010 GMC Terrain · 4 EPA-tested versions

Best EPA rating

26MPG combined

22 city 32 highway

$2,600 a year to fuel

2.4L 4-cyl · FWD · 6-speed automatic

Best version costs $1,000 more in fuel over 5 years vs the average new vehicle (EPA)

Fuel cost: 15,000 miles a year at EPA's $4.47 a gallon (regular gas).

Data: US EPA, fueleconomy.govUpdated Sep 30, 2026

At EPA's price assumptions, fuel costs $2,600 to $3,350 a year.

About a typical Terrain year

The 2010 drew 34 owner complaints in its first three years, against 34 for a typical Terrain year.

No Terrain year stands out enough to avoid; best years: 2016, 2017, and 2021. Based on owner complaints, not adjusted for sales.

Every Terrain year ranked The 2010 Terrain's recalls and problems

Every 2010 Terrain version

EPA's ratings for each version it tested. Fuel cost is EPA's estimate for 15,000 miles a year at its current prices.

Version	Combined	City / Hwy	Fuel / year
2.4L 4-cyl · FWD · 6-speed automatic Best EPA listing: Terrain FWD	26 mpg	22 / 32	$2,600
2.4L 4-cyl · AWD · 6-speed automatic EPA listing: Terrain AWD	23 mpg	20 / 29	$2,900
3.0L 6-cyl · AWD · 6-speed automatic EPA listing: Terrain AWD	20 mpg	17 / 24	$3,350
3.0L 6-cyl · FWD · 6-speed automatic EPA listing: Terrain FWD	20 mpg	17 / 25	$3,350

Fuel cost at your prices

EPA's annual cost uses 15,000 miles a year, 55% city driving and its current prices: $4.47 a gallon for regular gas. Change the numbers to match your driving.

Version	Per year	Per month	5 years
2.4L 4-cyl · FWD · 6-speed automatic	$2,579	$215	$12,894
2.4L 4-cyl · AWD · 6-speed automatic	$2,915	$243	$14,576
3.0L 6-cyl · AWD · 6-speed automatic	$3,353	$279	$16,763
3.0L 6-cyl · FWD · 6-speed automatic	$3,352	$279	$16,762

At the default settings the results match EPA's annual cost before EPA rounds it to the nearest $50.

GMC Terrain MPG by model year

The best-rated version in each model year; the highlighted year is this page. Gas: 25 to 28 mpg (every year from 2010 to 2026); highest in 2018. Diesel: 32 mpg (2018 to 2019).

Best gas version
Best diesel version

2010: gas 26 mpg · diesel not offered

Show as a table

GMC Terrain best combined mpg by model year
Model year	Best gas version	Best diesel version
2010	26	–
2011	26	–
2012	26	–
2013	26	–
2014	26	–
2015	26	–
2016	26	–
2017	25	–
2018	28	32
2019	28	32
2020	27	–
2021	27	–
2022	27	–
2023	26	–
2024	26	–
2025	27	–
2026	27	–

Every Terrain year's ratings in one table

How the 2010 Terrain compares

2010 compact SUVs covered on this site, ranked by their best combined rating. Fuel cost is for each model's cheapest version to run, at EPA's prices.

2010 model	Best combined	Best gas	Fuel / year
Ford Escape Best: hybrid	32 mpg	24 mpg	$2,100
Hyundai Tucson Best: gas	26 mpg	26 mpg	$2,600
Chevrolet Equinox Best: gas	26 mpg	26 mpg	$2,600
GMC Terrain This page Best: gas	26 mpg	26 mpg	$2,600
Jeep Compass Best: gas	25 mpg	25 mpg	$2,700
Toyota RAV4 Best: gas	24 mpg	24 mpg	$2,800
Honda CR-V Best: gas	24 mpg	24 mpg	$2,800
Nissan Rogue Best: gas	24 mpg	24 mpg	$2,800
Subaru Outback Best: gas	24 mpg	24 mpg	$2,800
Subaru Forester Best: gas	22 mpg	22 mpg	$3,050
Kia Sportage Best: gas	22 mpg	22 mpg	$3,050
Volkswagen Tiguan Best: gas	21 mpg	21 mpg	$3,900

2010 Terrain recalls and complaints

NHTSA lists 3 safety recalls and 290 owner complaints for the 2010 Terrain.

Owners most often describe the check engine light (41 complaints, 14%), then timing chain or belt problems (37).

See the 2010 Terrain recalls and problems

Questions

Does AWD lower the 2010 GMC Terrain's gas mileage?

Sometimes. On versions that differ only in drive, the gap ranges from 0 to 3 mpg combined: the 2.4L 4-cyl gets 26 mpg combined with front-wheel drive and 23 with AWD.

Does the 2010 GMC Terrain need premium gas?

No. EPA lists every 2010 GMC Terrain version on regular gasoline.

Sources and method

US EPA and Department of Energy fuel economy data (fueleconomy.gov), file dated Sep 29, 2026.
EPA fuel price assumptions: regular $4.47, midgrade $5.07, premium $5.48, diesel $6.38 a gallon; electricity $0.15 per kWh.
Recall and complaint counts: NHTSA recall file dated Oct 2, 2026 and complaint file dated Oct 2, 2026.

Ratings are EPA estimates. Real-world mileage depends on how, where and in what weather you drive. How we build these pages. Spotted an error? Tell us.