GMC Terrain Complaints

212 consumer complaints on file.

#11747599July 1, 2026
SERVICE BRAKES
Driving on the Garden state parkway on Sunday night June 28, 2026 I proceed to cross over the ratitan bridge. There was traffic as I was going down the bridge at 70 miles an hour. When I applied the brakes the car would not stop. I had two 6 years old in the backseat. I applied 2 feet to the brake pedal and it was like a rock and the car would not slow down. I thought I was going to crash. I had to steer and lane change several times to avoid hitting other cars. This has something to do with the driving assist braking system. I was scared to death. If this isn’t a safety concern nothing is. This should be a recall for GMC to fix because it’s an accident waiting to happen.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11746462June 25, 2026
AIR BAGS, STEERING, WHEELS
I was driving north on [XXX] when I felt a slight pull to the right. I figured it was my lane assist even though I was in my lane. Seconds later it felt like if someone was in my passenger seat and just yanked my steering wheel to the right hitting the guardrail. My whole tire and the assembly was off but everything was still intact to the tire. The tie rods, axle, ball joints, the whole assembly. During investigation I was told by the mechanic that the stabilizer bar was a clean break. There was damage to the front end and all down the side. I was told by GM that the force of the impact was what ripped off my tire but it was not enough impact or damage to deploy the airbags. I was on crutches for my left leg, bruising and scar now from a huge abrasion to my right arm. Still having right shoulder pain. I sent all this to the attorney General and they tried to mediate but Afton from GM told Mike that he contacted me 3 times and I did not return her calls. I called her a left her multiple messages and she has not returned my calls. I only had the car for a few months with 5,000 miles on it. I put $2,500 down then had to turn around and get a used vehicle, put another $2,000 down and making the same payment due to the hit on my credit for a 2023 plain vehicle. Plus my insurance went up, missed work, medical bills, etc. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11746008June 23, 2026
ENGINE, FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP, FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP:CONTROL/DRIVE MODULE
The contact owns a 2022 GMC Terrain. The contact stated that while his wife was driving 35 MPH, the contact received an email and text from OnStar with DTC: P129F, and the message to not drive the vehicle was displayed. The check engine warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed and determined that the fuel pump power control module had failed. The vehicle was repaired, but the failure reoccurred. The contact stated that the failure was related to N252516900, a General Motors (GM) emission recall related to the Fuel Pump Power Control Module (FPCM and GM safety recall N222372310 – Inadequate Fuel Pump Flow. The local dealer was contacted, who stated that the fuel pump had failed to meet higher outputs. The manufacturer was contacted and confirmed that there was no coverage on the vehicle. The failure mileage was approximately 66,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11745975June 23, 2026
STRUCTURE:INTERIOR PANELS:CENTER CONSOLE
The contact owned a 2026 GMC Terrain. The contact stated that while her husband was driving on a perpendicular road at an undisclosed speed, entering a highway, the driver yielded; however, a truck in the median was attempting to cross the highway during oncoming traffic, and an oncoming vehicle crashed into that vehicle, causing the truck to crash into the front of the vehicle. The front air bags deployed as intended. The contact stated that an electrical fire started under the center console, and the driver’s shirt was burned by the fire. The Fire Department was on scene and removed the contact from the vehicle; however, a fire report was not filed. An off-duty sheriff witnessed the crash and assisted in removing the contact husband from the vehicle. The driver was taken to the Emergency Room for neck, arm, and wrist injuries, bruises, burns, and scratches. The contact was unsure of how the fire was extinguished. The contact mentioned that the smoke emitting was carbon monoxide-related. The vehicle was towed to an impound lot and was deemed a total loss by the insurance provider. A police report was filed. The dealer and the manufacturer were notified of the failure, and there was a pending inspection on the vehicle. The failure mileage was approximately 6,300.
Crash:
Yes
Fire:
Yes
Injuries:
1
Deaths:
0
#11745857June 23, 2026
POWER TRAIN
The vehicle has experienced a recurring transmission-related defect that has required multiple repair attempts by an authorized GMC dealership. The transmission system has also exhibited fluid leakage. Despite prior repairs, the problem has continued to reoccur. Transmission and associated transmission fluid sealing components. The vehicle is currently available for inspection upon request. A transmission is a critical safety component that transfers engine power to the wheels. A transmission defect or fluid leak can result in loss of propulsion, hesitation, inability to accelerate as expected, unexpected changes in vehicle operation, or transmission failure while driving. These conditions could increase the risk of a crash, particularly when merging into traffic, crossing intersections, or traveling at highway speeds. Transmission fluid leaking onto roadways or vehicle components may also create additional safety concerns. The vehicle has been presented to an authorized GMC dealership for diagnosis and repair on multiple occasions. The dealership has acknowledged and attempted repairs related to the transmission. The vehicle has been inspected and repaired by authorized GMC service personnel. No police involvement. No independent inspection has been performed at this time. Manufacturer-authorized dealerships have documented the repairs. Symptoms included transmission-related concerns and transmission fluid leakage. The defect first appeared while the vehicle was under warranty and has continued despite repair attempts. The recurring nature of the transmission defect and fluid leak has reduced confidence in the vehicle’s ability to operate safely and reliably. The vehicle remains under warranty and has undergone multiple repair attempts without a permanent resolution.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11745461June 21, 2026
FUEL/PROPULSION SYSTEM
Won't start and stay running
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11745358June 20, 2026
SERVICE BRAKES
ABV came on. SCR alerted I needed service. On a 25 mph road I no longer could brake randomly
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11745002June 18, 2026
FUEL/PROPULSION SYSTEM
Driving to work and the vehicle suddenly turned off in the middle of the road just as I had turned the corner onto another street leaving me in a dangerous spot. There was no warning lights or anything it just shut off and would not start back up. Sister had to wait with vehicle while brother in law drove me to work. Had to have the vehicle towed to Tinney Chevrolet GMC service department and after they completed their service found out the FUEL PUMP MODULE failed. I was told GMC has open recall for 2022 GMC Terrain on this exact issue but for some reason my VIN number doesn't come from the HUB they issued the recall from? I find it suspicious my vehicle had the exact same part fail and left me in a dangerous situation with traffic coming around the corner as well as the inconvenience of family having to come take me to work and sit with my vehicle waiting for the tow truck. I had a bill from the service dept. for this repair of $671.15 and the towing company was $125.00 I would hope GMC would look into the fuel pump module issue for all 2022 GMC Terrain vehicles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11744960June 18, 2026
ENGINE, POWER TRAIN
Accelerator lag from any speed or stop. The care will take several seconds to hunt for the correct gear before shifting to accelerate. Or it will delay acceleration for several seconds while your pressing the accelerator. No SES indicator active. Mechanics can’t find issues. Other owners on forum a report the same sluggish behavior. These 1.5 turbo cars seem to need a software fix that they are not receiving. It’s like the drive by wire doesn’t register. Affects any gm vehicle with the 1.5 turbo and 9 spd auto.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11744779June 17, 2026
ENGINE, FUEL/PROPULSION SYSTEM
Since purchase, this vehicle has consistently had an issue with the fuel system. When I call GMC they state only use no ethanol fuel. I wouldn’t have bought this car if that was the case. The dealership never said that when I was buying it. We replaced the entire engine for $11,000 because of a torn radiator hose, overheating and cracked a gasket. Now, the car is refusing to drive, giving engine power reduced
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11742996June 9, 2026
FUEL/PROPULSION SYSTEM
A diagnostic test was ran on my vehicle and the only code that came back was issues with my fuel pump system. A recall for the issue is in place. However, my VIN number is not included. I took the vehicle to the closes GMC dealer and they replaced the fuel pump module. Within 2 weeks, the engine light came back on. I contacted the dealer and was instructed to keep driving the vehicle, the vehicle maybe resetting itself. I did and the engine light went off. Within 2 more weeks, the engine light came back on. I took it to the dealer and now they are telling me I need a new fuel pump. This leads me to believe the problem was not fixed and anything related to the fuel pump should have been examined and/or fixed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11741516June 2, 2026
FUEL/PROPULSION SYSTEM, ENGINE, UNKNOWN OR OTHER
I have had 2 different instances where my vehicle stops in the middle of a busy intersection or traffic and have no warning what so ever. Vehicle just shuts off and I am not able to turn back on to move out of the way. First time I got it repaired it was related to the fuel pump and now I am waiting to hear back from my mechanic to see what the issue is but so far it is an indication of the fuel pump as well. Both times I required help from law enforcement because vehicle shut off in the middle of the road and safety to myself and other drivers was an issue until tow truck arrived to move my vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11740826May 29, 2026
ENGINE, FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS
The contact owns a 2023 GMC Terrain. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated and the engine stalled. The contact attempted to drive the vehicle to the shoulder of the road, the engine seized. The contact stated while attempting to start the vehicle, the vehicle failed to start. The contact The vehicle was towed to an independent mechanic where it was diagnosed with a failed fuel pump. The contact was informed that the fuel pump needed to be replaced. The failure reoccurred. The vehicle was towed back to the independent mechanic where it was diagnosed with a failed fuel injector. The contact was informed that the fuel injector needed to be replaced. The vehicle was repaired. The failure reoccurred. The vehicle was taken back to the dealer where it was diagnosed with a failed Number 3 fuel injector. The contact was informed that the fuel injector needed to be replaced. The parts were ordered, and the vehicle was being repaired. The dealer was made aware of the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 45,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11740102May 26, 2026
VEHICLE SPEED CONTROL, FUEL/PROPULSION SYSTEM
I was driving the vehicle on the highway the cruise control was on. All of a sudden I got a warning on vehicle info panel that stated vehicle power is reduced. The vehicle decelerated on its own and I could not accelerate past 55. The check engine light came on. I pulled off the road and turned the vehicle off. After about 10 minutes, I started the car back up and proceeded down the highway at normal speed. The check engine light remained on. I stopped at a Chevrolet dealer service center in Ft Stockton, TX, to have the vehicle looked at. They could find no error codes and could not duplicate the problem. I was sent on my way. This has happened multiple times while driving on roads in my area. Mostly while on the highway.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739556May 22, 2026
ELECTRICAL SYSTEM
I am filing a safety complaint regarding my 2022 GMC Terrain after experiencing a sudden infotainment system failure that also disabled my backup camera functionality. The infotainment screen in my vehicle suddenly went completely black without warning and without any physical damage to the vehicle. The screen failure caused the backup camera to stop functioning as well, creating a significant safety concern while reversing and parking. The vehicle currently has approximately 50,000 miles. When I contacted the GMC dealership regarding the issue, I was informed that this is a common problem with GMC Terrains. However, because my factory warranty expired only weeks before the failure occurred, GMC declined to provide any financial assistance or goodwill repair coverage despite acknowledging the issue is commonly seen. This defect directly impacts federally required rear visibility safety equipment and creates unnecessary risk to drivers, passengers, pedestrians, and surrounding vehicles. Backup cameras are an essential safety feature, and the sudden failure of the infotainment system removes access to that safety function entirely. I believe this may be a widespread defect involving the infotainment and electrical systems in the 2022 GMC Terrain and request that NHTSA investigate this issue further for potential recall or manufacturer accountability.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738493May 18, 2026
FUEL/PROPULSION SYSTEM, UNKNOWN OR OTHER
Vehicle stalled while driving and would not restart. Strong gasoline smell present and on ground. Third occurrence. Vehicle stalled while driving at on busy road (safety issue both times). Strong raw gas smell. Would not crank afterward. Dash powered normally with check engine light. Happened previously around 27k miles in September 2025. Occurred again May 9, 2026. Occurred again today l, May 18, 2026. Vehicles is being towed to dealership again for the 3rd time
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738316May 16, 2026
UNKNOWN OR OTHER
The sun/moon roof randomly imploded while driving. It popped and felt the force of the implosion.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11737870May 14, 2026
FUEL/PROPULSION SYSTEM
I was driving down the hwy and all of a sudden the car went into reduced power mode and the dealership is saying it’s a high pressure fuel pump which is not covered under the standard warranty My vehicle only has 46000 miles Fennigan GMC Rosenberg tx
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11737569May 13, 2026
POWER TRAIN
The contact owns a 2022 GMC Terrain. The contact stated that while driving 45 MPH, the vehicle began to shake independently. No warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that the front drive axel needed to be replaced. The contact was relating the failure to Technical Service Bulletin: 20-NA-227 (wobble or vibration during hard acceleration); however, the VIN was not included in the bulletin. The manufacturer was notified of the failure, and they informed the contact there was no recall for the failure. The failure mileage was 64,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11737313May 12, 2026
ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL, UNKNOWN OR OTHER
OnStar module not working
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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