I bought my 2011 awd 4 cyl. Terrain in july, 2011. I traded my gmc acadia in on this vehicle. I down sized to get better gas mileage. It stated that it should get 20 city & 30 hwy. I have never came close. I took it to the dealer and they said it is running fine. Mpg at 22. I don't know what we all have to do to get gm to do something about this but something needs to be done.they have pretty much lied to all of us and anyone that is thinking about buying one. We need to get the word out about this vehicle. Don't buy it for the gas mileage because it don't get what it states!!!!!!!!!!!!!!! I think gm should do something about this or reimburse us for the difference that we would get with the correct gas mileage. Maybe this will get a recall on these vehicles.
2011 GMC Terrain fuel system complaints
Page 3 of 3: complaints 41 to 48 of 48, newest first, as owners wrote them.
The gas fill tube tends to allow the gas nozzle to pop out when filling. Have never seen this on other vehicles. I have to hold the nozzle to make sure it does not pop out.
We purchased the gmc terrain with the 4 cylinder engine for the gas mileage of 32 mpg, after getting only 26 mpg we called gmc and took the terrain in for service. Also filed complaint with gmc. Was told their was nothing they could do. The engine makes noises and runs rough and stalls at times mostly in the mornings. After service now we get only 25 mpg.
I have a 2.5 month old 2011 gmc terrain. At 4984 miles it is in the shop for stalling, for a horrible rattle upon start up, and for it jerking between first and second gear. When I took it in this morning it had stalled six times within the past 2 days. It stalls after start-up in forward and reverse and it stalled three times while in idle in a fast food drive-thru. There is also the rattling which happens on cold and warm starts, whether the A/C or eco mode are on. It sounds like metal rattling and like it is harming the engine. The least of my worries, is the fact that between 25-35 miles an hour the transmission shifts very hard and kicks myself and passengers forward. Apparently there is a tech bulletin that has been out for the rattle for several months. Why not fix them before they sell them? Also, there is a recall #11195 for "rough idle, poor driveability" that doesn't show up on the federal safety agency site or anywhere else but the gmc dealer's computer. Additionally, despite the claims, I have never gotten better than 21 mpg while driving this car including an all highway trip from michigan to indiana. I think it is false advertising and the fuel economy in eco or not is not what they claim when the y sold the vehicle to me.
This vehicle boggs down when giving it gas and will often cut off after stopping for no reason. There is a noise when you start the vehicle (like a clicking noise). The vehicle do not get the 32 mpg as what is stated, I get about 20 mpg highway. The gas needle does not work properly. I will fill up and still show 1/4 short. The leather seats are buckling and dealer says its normal but know others with leather seats & not happening to them. Recently took in for "service engine" light and malfunction light. This is new car & none of these issues should be happening this soon. I feel like it's a "lemon" and dealer is no help and these problems will compound as car gets older and warranty is over I will be out of luck. Unhappy customer.
Vehicle is not delivering the epa fuel economy performance rated. The gmc terrian fwd 4cyl is rated 22 city, 32 hwy, and 26 overall. I drive 30% of my miles in the city and 70% hwy. My vehicle has 5000 miles and I am experiencing 17 city, 22 hwy, and 20 overall. All well below the expected range. I am a very conservative driver, no jack rabbitt starts at stop lights, use cruise control. I have complained twice to gmc and was told it takes apx 5000 miles to "break in" the vehicle. I now have 5000 miles and am now being told to use high octane fuel. Fuel performance is so poor I suspect a gas leak or some faulty component that may be potentially dangerous due to the excess consumption of fuel well beyond the controlled epa estimates.
3 problems with my 2011 gmc terrain awd, 2.4 liter 1. Poor gas mileage - averaging 18.8 miles for a vehicle rated 20 city, 29 hwy. I drive 42 miles daily, 4 city, 38 hwy. Dealer checked, no codes and states "operating as per deigned intent" 2. Jerky transmission shifts and severe hesitation on startup and slow speeds in eco mode. Dealer checked, no codes and states "operating as per deigned intent" 3. Engine "knock" on startup that last from 3 to 10 seconds, normally on "cold" startup. Dealer checked and could not duplicate complaint, checked cam phaser screens per service bulletin and states no debris is present. Dealer states no codes are present and nothing they can do. Oil and oil filter were changed at my request. Engine knock and poor gas mileage still exist, transmission issue seems to have changed to normal and slightly hard shifting now after dealer visit.
My 2011 gmc terrain has a 2.4l 4 cylinder front wheel drive. It is rated at 32 mpg highway. Since day 1 I have not even gotten close to this. I drive 100 miles a day and maybe 5 miles of it is considered city driving. I am getting 20 to 22 mpg. I contacted gmc and they had me take it in to be checked out. The dealership hooked it up to there computer and said that everything is the way it should be. They then told gmc that it is winter now and fuel mileage will drop due to cold weather. I agree with that but not 10 miles to the gallon. Maybe 2 or 3 at the most. I cant get them to do anything about it, I am tired of having to pay out extra money for gas when this vehicle is not performing to its expectations.
VIN decoder
See the problems and recalls for an exact car
Buying a used 2011 GMC Terrain?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history