GMC Terrain Complaints

212 consumer complaints on file.

#11730114April 9, 2026
POWER TRAIN
The contact owns a 2023 GMC Terrain. The contact was informed by his wife that while attempting to accelerate from being stationary, the vehicle was shaking abnormally and hesitated before accelerating. There were no warning lights illuminated. The vehicle was taken to the dealer to be diagnosed but the cause of failure was not yet determined. The vehicle was not repaired. The manufacturer was informed of the failure. The manufacturer opened a case for the failure. The failure mileage was approximately 13,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729391April 6, 2026
ENGINE, STRUCTURE:BODY, UNKNOWN OR OTHER
Took dealer 3/26 for Sam issue Engine Power reduced after already cause me hit curb. Got it out 4/1/26 Now 4/5/26 it happened again same codes after they claimed they fixed it. Also keep having Emergency services come on a caused my dashboard out. My issues is car keeps stalling losing power. Same codes as week ago after dealer fix. Also 4 time took for noises in my car from passenger side. They keep telling me they can’t replicate it, but you can clearly see where the door is not lined up. This has been going on for over 30,000 miles for that. Like some of these issues have been going on since the 36,000 but now I’m having issues where I’m losing power like this is insane all before 60,000 miles which I’m about to hit. It’s gonna end up getting me killed on the interstate. My vin also says it’s fwd it’s awd AT4 . Called dealer said only to update software clearly not the issue. My doors are off and they have refused to fix those for over 30,000 miles now. It won’t let me attach any pics for some reason I’ve tried since yesterday
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729297April 5, 2026
ELECTRICAL SYSTEM, POWER TRAIN
Took dealer 3/26 for Sam issue Engine Power reduced after already cause me hit curb. Got it out 4/1/26 Now 4/5/26 it happened again same codes after they claimed they fixed it. Also keep having Emergency services come on a caused my dashboard out. My issues is car keeps stalling losing power. Same codes as week ago after dealer fix. Also 4 time took for noises in my car from passenger side. They keep telling me they can’t replicate it, but you can clearly see where the door is not lined up. This has been going on for over 30,000 miles for that. Like some of these issues have been going on since the 36,000 but now I’m having issues where I’m losing power like this is insane all before 60,000 miles which I’m about to hit. It’s gonna end up getting me killed on the interstate.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11728525April 1, 2026
SUSPENSION, STEERING, SERVICE BRAKES
My SUV pulls hard to the right when braking at speeds above 50 mph and much more on the interstates at 65 mph and above. I first experienced this after three weeks of ownership on a drive up I-95 on a trip to NC. It has happened numerous times while traveling on the interstates and has almost caused loss of control when having to brake hard when cut off by another driver or traffic suddenly coming to a stop. The vehicle has been to the service department numerous times....at first they suspected a braking issue and have had both calipers replaced, all brake lines replaced, lower control arms replaced and the right side strut replaced. None of these repairs have solved the problem. The factory service rep who took over the situation tested 3 other GMC 2025 Terrain suvs and all had the same problem. He reported the issue on a safety report to GM in Michigan and the response from GM was that it is a normal condition for the Terrain models. I have never owned, driven, or ridden in another vehicle in over 50 years of driving which performed like this, this is not a normal condition in my opinion.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11727250March 26, 2026
FUEL SYSTEM, GASOLINE
The contact's husband owns a 2022 GMC Terrain. The contact stated that while driving at 20 MPH, the vehicle shut off with the message "Press Brake Pedal to Start" displayed on the instrument panel. The contact attempted to restart the vehicle several times and added fuel to the fuel tank jug; however, the vehicle failed to restart. Due to the failure, the vehicle was towed to an independent mechanic who diagnosed the vehicle with a defective fuel pump module. Upon investigation, the contact discovered NHTSA Campaign Number: 23V013000 (Fuel System, Gasoline); however, the VIN was not included in the recall. Neither the manufacturer nor the dealer was notified of the failure. The vehicle was not repaired. The failure mileage was approximately 60,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11727062March 25, 2026
FUEL/PROPULSION SYSTEM
Fuel pump module failure, there’s a recall on this part for this year model but not my vin #
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11726875March 24, 2026
UNKNOWN OR OTHER
Car was off and parked and randomly caught on fire. Completely totaling the car
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11726445March 23, 2026
POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER
The contact owns a 2024 GMC Terrain. The contact became aware of a fluid leak underneath the vehicle. There was no warning light illuminated. The vehicle was driven to a local dealer, where it was diagnosed with a leaking torque converter seal, allowing transmission fluid to leak onto the ground. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 3,787.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11726152March 22, 2026
FUEL/PROPULSION SYSTEM, POWER TRAIN, ELECTRICAL SYSTEM
Out of nowhere and driving this morning, my engine reduced power came on. Then I started losing power in the car then it died on me once out of nowhere. I managed to make it home an hour and a half later, but that could’ve got me killed stopped by AutoZone since dealerships closed today and it tells me that it’s code P228C, P0089 fuel pump. And then last night my emergency service calling came on which one I looked it up so something to do with OnStar and could be a module so I’m not sure what that is. And then you add on the fact all the sudden in the last 24 hours, my screen keeps going in and out are not working last week. My volume wasn’t working. I love this car, but it seems to have a lot of issues all of a sudden and I’m fixing to be at 60,000 miles which is a big problem considering warranty will be expired. I’ve already had issues with squeaking and squealing from the windows that they claim they can’t find nothing and I’ve had to listen to it for almost 60,000 miles. I had to get this car because my other car blew up on me and I can’t afford another new car. I’ll be taking it to the dealership first thing in the morning and I hope to God that something can be fixed cause we’re in one car Family.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11726130March 22, 2026
FUEL/PROPULSION SYSTEM
With no warning signs, vehicle abruptly stalled while driving. I attempted to restart multiple times. Finally restarted and drove another 100ft and stalled again now with a check engine light. Made it to local shop and code P129F was found for fuel pump module. I see there is a recall on this but not for my particular vin. Recommend expanding recalls.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11725669March 19, 2026
UNKNOWN OR OTHER
Purchased NEW 2026 GMC Terrain Elevation, and it came with NO User Manual. I was told by the dealership (Al Serra GMC in Grand Blanc Michigan that i could either purchase one for $50.00+ dollars, PLUS TAX & $25.00 SHIPPING, or d/l it via the infotainment system in the car, WHICH DID NOT WORK! Talk about [XXX] A VIETNAM VET!!! We are both [XXX] old & need a manual, so bought a reproduction of the original via eBay for $50.00. At least GM could reimburse the cost of the manual… INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11724745March 16, 2026
ENGINE, ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
Vehicle went into reduce engine power mode and check engine light came on. Vehicle has just over 60,000 miles. Code is telling me I need a new turbo and being quoted $1,500-$3,000. I have read so many people having the same issue with needing a new turbo just after 60,000 miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11724576March 16, 2026
ENGINE
The contact owns a 2021 GMC Terrain. The contact stated that while driving at various speeds, the vehicle hesitated while depressing the accelerator pedal, with a misfire coming from the engine. During the failure, the message "Engine Power Reduced" was displayed on the instrument panel. The vehicle was taken to a local dealer, and the contact was provided an estimate for a diagnostic test. The contact declined. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11724409March 15, 2026
STEERING, SUSPENSION, WHEELS
Vehicle “wobble” under moderate acceleration and in corners, can be felt in the seats and steering wheel.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723520March 11, 2026
ENGINE, FUEL/PROPULSION SYSTEM, POWER TRAIN
I WAS DRIVING THE CAR ON 12-22-25 I LOST POWER MY CAR DIED ON I94. BATTERY DIED THE DEARLSHIP COULDNT GET THE CODE. GOT THE CAR BACK ON 12-26-25. ENGINE LIGHT CAME ON CARRIE GMC REPLACED BATTERY . CAR BACK ON 12-29-25.. ENGINE LIGHT BACK ON 12-31-25 CAR BACK ON 1-8-26 REPLACLED CATALYTIC CONVEERTED AND OXY SENSOR. 2-20-26 DRIVING ON 1-94 LOST ENGINE POWER CAR BACK ON 2-25 FEUL PUMP AND FEUL LINE. DROVE 300 MILES ENGINE LIGHT BACK ON. BACK TO CURRIE GMC ON 2-26-26 UNTILL 3-2-26 REPLACRED HEATED OXYGEN SENSOR . 3-6-26 REPLACED CATELYTIC CONVERTER AND OXYGER SENSOR FOR THE SECOND TIME.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723116March 9, 2026
ENGINE, FUEL/PROPULSION SYSTEM, UNKNOWN OR OTHER
While driving several times smelt gas and car cut out engine came on and car stopped mid driving multiple times. Says they replaced fuel pump reset car etc
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722117March 4, 2026
POWER TRAIN
I bought my car in July of 2025 and since then my car keeps derating and reducing engine power while driving down the road at 70 miles an hour. It cuts out and decreases power. I took my car to the shop twice to have them tell it needed an update. I drove away and then the car does it again. Since December my car has down this decreased power, derated notice more than 30 times!! It is a safety risk for me and my family because you never know when it will happen on the interstate and when you will lose power. I have almost been rearended 3 times due to this issue and no one can seem to fix the issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722113March 4, 2026
ENGINE, FUEL/PROPULSION SYSTEM
1st Failure. August 28, 2025. Vehicle stalled out while driving with NO warning. Check engine light stayed on. Could not drive. Car towed to dealership. Scanned codes found: p0089, p00c6 and p228c. Cause: Internal failure. Bulletin pertaining to this issue performed. Program of ecm per bulletin. 2nd Failure. February 19, 2026 Vehicle stalled out a 2nd time while driving with NO warning. Check engine light stayed on. Could not drive. Towed in a 2nd time. Scanned codes found: p0089, p00c6, p228c and p2c1f. Cause: internal Fault. Fuel pump power control module replacement. Fuel pump replacement. 3rd Failure. March 4th, 2026. Vehicle stalled out a 3rd time while driving with NO warning. Check engine light stayed on. Could not drive. Towed in again to dealership. Currently sitting at dealership waiting on repairs a 3rd time for the same thing. Wife is 76 years old and is terrified to drive this car. What if this stalls out on the freeway in traffic. Car is unsafe to drive.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722070March 4, 2026
FUEL/PROPULSION SYSTEM, ENGINE
Check engine light is coming on, indicating reduced engine power. Took vehicle to GMC dealer and they advised that the repair shop was getting assistance from the GMC Tech line to update a module to correct the issues. I was informed today that the high pressure fuel pump will have to be replaced, along with a hose or pipe to correct the issue. The vehicle has 57k miles on it. Upon researching the issue, I found that this has been a persistent issue with this model vehicle, dating back to 2020. It appears that it has not been resolved and the vehicles could stall or stop at any time. There is currently a class action lawsuit pending on this issue. Please help, this is dangerous
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722011March 4, 2026
UNKNOWN OR OTHER
Very soon after purchase vehicle developed a front end shake and continued to get worse. This happens when pulling out or in stop and go traffic this varies from in intensity and sometimes it can be quite violent shaking the whole vehicle. The car has been to a GM dealership for this problem 3 times now. The first time 9/8/2025 replaced rear axle, the second time 10/20/25 both front axles were replaced. The 3rd time GM engineer Paul Koerner said they are aware of this problem but there is no repair until it is further investigated this was 12/10/25. As of this time there is still no repair but a bulletin has come out document #7036661. This states the customer should continue to drive vehicle I now have 7600 miles on it and it continues to shake every time I pull out. There seems to be no repair in sight and I’m concerned something will finally fail maybe causing a serious situation and about the unknown damage this is causing to the vehicle. I have written a letter to GM corporate about my concerns and asked for vehicle replacement to no avail. I have all the repair orders and documents and would be glad to give them to you as I have tried to upload them and it seems to work but won’t let me continue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

← Back to GMC Terrain