Last post on Aug 10, 2013 at 6:04 AM
You are in the GMC Terrain
What is this discussion about?
GMC, Fuel Efficiency (MPG), SUV
#35 of 75 Poor MPG on 2012 terrain.
May 20, 2013 (12:45 pm)
Looks like I am joining a group of unhappy Terrain owners. For the record, we like our Terrain, my only complaint, to date, is highway MPG. I purchased my 2012 Terrain SLT 4 banger in October 2012. Since purchasing, we (my bride & I) have driven 10600 miles and filled the tank up 31 times. I have detailed records of actual miles/total gals/MPG on each tank of gas. (No, I am not anal, I spent 35 years in field sales and habitually kept detailed records for tax purposes.)
My average, to date, is 23.37 mpg with an absolute best MPG of 25.97 mpg (RT) and an absolute worst at 21.24 mpg.
My dealer has been supportive; my issue is with GMC customer service. They have taken a "nothing we can (will) do", "tough crap" attitude. The regional guy (jerk) went so far as to say the published MPG numbers were from EPA and not GMC suggested mileage (yet they are posted in all GMC advertising) and even suggesting that nothing was wrong with the Terrain, maybe our driving habits were the real problem or we were not buying quality gas. This got my dander up, since we only use gas from three major companies, I have purchased 15 GM vehicles since 1963 and currently own a 2000 Buick Regal V6 with over 221,000 miles which still gets 27-28 highway mpg. This is the 1st GM vehicle which did not meet my expectations and this jerk says nothing is wrong, its my fault...
I just want to share my information and learn if anyone has been able to get past the low level "rejecters" to get someone with authority, or at least, a genuine empathy with our problems. I have details; I just want someone to care enough to look at my information. So far they have been too busy saying "we understand your frustration" but not taking any time to look at my data or offer any suggestions for a resolution to the problem. xljake
May 20, 2013 (1:18 pm)
I tried to like the Terrain but I got to take a two day test drive (I know the dealer) and I could not get anywhere near the mileage estimate. I took it back after the test drive and bought another Acadia. The dealer told me the the small 4 cylinder engine, even though rated for 87 octane, just won't get the mileage on that gas. Then add in the fact that it is almost impossible to buy gas in my area with out 10% ethanol (ethanol kills gas mileage) and you are in a lose lose situation.
I have been watching this forum for a year and I have a friend who own a Terrain and one who owns an Equinox. No way, no how, does anyone get anything close to the mileage promised.
Other than that, is seems like a nice vehicle.
Don't buy if for the gas mileage.
#37 of 75 How EPA Got These High Numbers
May 20, 2013 (2:47 pm)
Checked the EPA site (See earlier postings for links) and read the test parameters and results for mileage. Turns out the average HWY speed they used is 48 MPH. With a Max of 60 MPH. So if you care to drive that slow you to can get these numbers. This looks like serious manipulation of data. Perhaps an investigation into why they would allow such slow speeds to achieve the HWY numbers is in order. Last time I looked, the national speed limit was 65 on the HWY. The numbers should at least reflect that as the average speed on the test. The questions is why do other vehicles achieve their HWY numbers at realistic HWY speeds?
#38 of 75 Re: Poor MPG on 2012 terrain. [xljake]
May 20, 2013 (3:00 pm)
You must bring it out to Pennsylvania. We had a comsumption test done at Star GMC, Quakertown, PA - and guess what they said? It does 38.8 mpg! Not bad - I just want to know where all the gas is going - !!!
Of course the "authorities" of GM believed this and said "case closed."
We too can only get low 20's. On highway, 2200 miles - no city driving - we got 27.5....far from 32!
This is a bad deal - and GMC could care less; after all, we helped bail them out of bankrupcy - so they are now happy as can be.
#39 of 75 Re: Never Again Will I Buy A GMC After The Terrain [bwall2]
May 21, 2013 (12:17 pm)
im not trying to start anything here but from all 38 posts before me there are multiple promoting the prius and last i checked this is a terrain forum. If you hate the terrain or GM for that matter start a new thread where people want to read that. Also like sarah explained multiple times how the EPA does the testing, im hoping that it can finally be grasped but for those here we go again, GM does NOT do the testing they have ZERO control over how an outside independent organization does their job.
#40 of 75 Re: Never Again Will I Buy A GMC After The Terrain [thetwofour]
May 23, 2013 (3:43 pm)
"... Also like sarah explained multiple times how the EPA does the testing, im hoping that it can finally be grasped but for those here we go again, GM does NOT do the testing they have ZERO control over how an outside independent organization does their job. "
OK, you made me look back at the posts. I did not find a quote from Sarah that says that GM does not do testing. The EPA does very little testing; almost all of it is done by the manufacturer according to EPA testing requirements. They then submit the results to the EPA. I can find no Internet source that says GM outsources their EPA testing.
I think you mean that GM has no control over how EPA testing is done, but that is different than saying they don't conduct the testing.
I'm interested in the topic. Do you have a link?
#42 of 75 Unhappy Terrain Owners
May 27, 2013 (11:16 am)
It seems that with all the UNhappy Terrain owners on here that we could "spread the word" about it via social networking and to our GMC dealers AND GMC itself, and if we complain loudly enough then maybe we'd be heard and get something done. How did the other class action suit about low mpg get going?
We've ALWAYS had GMC vehicles in our family and the Terrain is the ONLY one we've had issue with. We have 3 Terrains and they are ALL UNDERperforming in mpg!!!
#43 of 75 Re: Unhappy Terrain Owners [aray5]
May 27, 2013 (1:43 pm)
Yes - that sounds like a great idea. We have always had GM products - and a Toyota hybrid Camry that gets what the sticker says. 97,000 miles and it just runs and runs.
I am so tired of the 22-25 mpg - never will get close to 32 mpg.
#44 of 75 Bad bad MPG!
May 28, 2013 (3:28 pm)
My original post was removed because I posted GMC's toll free phone number. My mpg is still only 23.8; my son's is still only 25; my daughter's is 24.7; and my co-workers' are still less than 27mpg. I still think that we ALL need to call GMC and our local GMC dealer(s) and report our dissatisfaction and our very similar reasons! Since I can't post GMC's phone number, you will have to go to the GMC site and click on the "Contact Us" tab. I STILL think that if the mpg numbers are posted on the sticker, then GMC is "tricking" their customers by falsely advertising something the vehicle will never be (get) and is therefore responsible.
I did get a call today from a GMC trouble shooter specialist, however, I didn't get to the phone in time and when I returned the call to GMC she was busy and she didn't try to call me back...