8.7

pretty bad
Typical Repair Cost:
No data
Average Mileage:
26,600 miles
Total Complaints:
3 complaints

Most common solutions:

  1. not sure (3 reports)
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problem #3

Jan 162013

Terrain SLE V6

  • Automatic transmission
  • 3,675 miles

GAS MILEAGE NO WHERE NEAR AS ADVERTISED. WE'RE GETTING ABOUT 20 MPG

- Wendy B., Lawrenceville, GA, US

problem #2

Oct 112011

Terrain SLE 2.4L

  • Automatic transmission
  • 48,000 miles

Gmc has grossly overestimated the mpg on terrains. They get no where near the miles that they advertised.

The sole reason we bought a 4 cylinder terrain was for the advertised MPG . We feel cheated and will never buy a GMC again.

- mad1, Vandling, PA, US

problem #1

Mar 252013

Terrain SLT-2 4 cyl

  • Automatic transmission
  • 28,000 miles

I have had the Terrain for almost 3 months and I never even come close to getting the MPG that GMC claims the Terrain gets. The best I have ever gotten was 23.2 and that was on a road trip with all highway miles. I used to have a hybrid escape until my husband totalled it so I know how to drive a car to maximize gas mileage. I looked for areplacement for months for a SUV or crossover with good gas mileage. I finally decided on the 2012 4cyl FWD GMC Terrain because it claimed to get 32 MPG on the highway. I typically average about 18-20 MPG. I would have NEVER purchased this car if I had known that I would never come close to the estimated MPG. I will never buy a GMC again...they are dishonest. Sign me up for the class action!

- Mary A., Irvine, CA, US