Other Fuel System Problems of GMC Terrain - part 1

My 2023 GMC Terrain has experienced two separate incidents of complete loss of motive power/engine propulsion while being driven. The vehicle suddenly loses the ability to accelerate and maintain normal propulsion, creating a serious safety risk in traffic. The first occurrence was on August 8, 2026. The vehicle was subsequently diagnosed and repaired by an authorized Chevrolet dealership with general motors involvement. After those repairs were completed and the vehicle was returned to me, the same loss-of-propulsion symptom occurred again on September 26, 2026, approximately two weeks after the vehicle was returned. The second failure occurred while I was actively driving and again resulted in the vehicle being unable to maintain normal propulsion. The vehicle required towing and is currently at an authorized GMC dealership for diagnosis. The vehicle is available for inspection. This recurring failure creates a risk to the driver, passengers, and other motorists because propulsion can suddenly be lost while the vehicle is operating on a roadway.

See all problems of the 2023 GMC Terrain 🔎.

I purchased this vehicle two weeks ago. It was my first time driving it since I bought it home from the dealer. I was on the highway driving about 55 mph in the left lane. All of a sudden the car started to slow down on its own going down to 15 mph without knowing what was happening. I tried to ease my way to the left and was almost hit by multiple vehicles. Once I got to the left lane the vehicle stopped running. I couldn’t start it. I noticed a pool of liquid on the right side of the vehicle. I also started to detect a strong smell of gasoline. I had to get towed off the road by calling 911 for assistance. The tow truck driver also confirmed that the liquid was gasoline. I had to get the car towed twice. It is now at my mechanic awaiting his inspection. I also spoke to the dealership. Unfortunately they are too far away for me to get the car there. I’m in limbo now. I am praying that the car is still under warranty. This was a very dangerous experience and it could have been worse. I did notice a recall for fuel system failure but I did not see it on my vehicles VIN number.

Fuel pump control module and or the in tank fuel pump failed and or isn’t making proper connection for car to run correctly. Safety was put at risk as car came to abrupt halt while driving. Driver was outside of vehicle at busy intersection for vehicle diagnostics and battery jump. Battery was removed and new battery installed yet problem persists. Not confirmed by dealer but code is as follows (p129f). Maintenance performed by owner;code reader used for diagnostics, new battery installed. Problem persists. Car started, drove and stumbled to then die. Check engine now displays.

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The car stalled while traveling down a road. We tried to restart and it would run for a few seconds and stall. We could not restart. There were no warning lights before the stall and after the engine would not run to get any other indicators that something was wrong. Had it towed to dealership, their diagnostic's showed it was a fuel pump driver module. Upon researching the issue, there is a recall for this problem but my VIN was not included in the recall.

See all problems of the 2022 GMC Terrain 🔎.

My car stalled and did not want to start. It had to be towed to the nearest GMC dealership. My GMC dealer diagnosed a p129f fuel-pump control-module failure and replaced fuel-pump power control module part number 13554821. I was told that even though there was a recall for 2022 GMC Terrains for this part my VIN number was not included.

Read • 9:59 pm I am formally requesting a VIN eligibility review under gm customer assistance case #xxx. Vehicle: 2022 GMC Terrain VIN: [xxx] dtc: p129f recall: n252516900 – fuel pump power control module I was advised that my VIN is “not included” in the recall. I am requesting that gm reconsider and formally document the basis for that determination. Gm’s xxx revision of n252516900-01 states that the phased launch was complete and that all vins had been placed in an open status in gm’s investigate vehicle history (ivh) system. The bulletin specifically identifies the 2022 GMC Terrain as an affected model. Additionally, gm previously issued engineering information specifically concerning 2022 GMC Terrain vehicles experiencing dtc p129f, including situations involving failure to start and/or stalling. Because my vehicle experienced p129f, I am requesting: a formal VIN eligibility review for n252516900. Confirmation of what gm’s ivh system shows for VIN [xxx]. A written explanation of why my VIN is excluded if gm determines it is not eligible. Documentation of my p129f failure under case #xxx. Review of whether my vehicle’s failure is consistent with the condition addressed by n252516900. Review of reimbursement eligibility for any qualifying repairs or expenses associated with this failure. Please do not close case #xxx until this VIN-specific review has been completed and the basis for gm’s determination has been provided. I am requesting that this matter be escalated to the appropriate gm technical/recall authority if customer assistance cannot resolve the VIN eligibility issue. Thank you. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

My 2022 GMC Terrain lost power and stalled while I was driving, creating a safety risk because I could no longer maintain speed in traffic. The incident involved a police response and a safety-related tow costing $250. On xxx, onstar recorded diagnostic trouble code p129f. Tire choice subsequently replaced the fuel pump control component, identified in my records as gm part number 13554821, at a repair cost of $493. 25. I have supporting diagnostic, repair, towing, and police documentation, along with evidence of the removed part. Gm’s later vehicle history printout showed zero open field actions for my VIN [xxx]. I am concerned that this failure may be related to the fuel pump power control module condition described in gm campaign n252516900, although I have not confirmed that connection. I request that NHTSA investigate the loss of propulsion and whether the campaign’s coverage should include my vehicle. Tire choice subsequently replaced the fuel pump control component, identified in my records as gm part number 13554821, at a repair cost of $493. 25. I have supporting diagnostic, repair, towing, and police documentation, along with evidence of the removed part. Gm’s later vehicle history printout showed zero open field actions for my VIN. I am concerned that this failure may be related to the fuel pump power control module condition described in gm campaign n252516900, although I have not confirmed that connection. I request that NHTSA investigate the loss of propulsion and whether the campaign’s coverage should include my vehicle. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Component or system failed - GMC dealership replacing fuel pump. Safety or safety of others at risk - stalled in remote area with no internet/cell service. In order to get to safety we travelled 13 miles of narrow 2 lane roads with no shoulder or escape areas. Road included 3 miles of a steep downhill grade. Has the problem been reproduced or confirmed by a dealer - yes, walser GMC [xxx] were there any warning lamps, messages or other symptoms of the problem prior to the failure - no, drove 400 miles w/2 stops, rest stop and lunch/gas. Got to our destination, shut off the car. Needed to move the vehicle to designated parking spot and at first the vehicle would not start, got it started but lurched forward, engine chugged, no acceleration and then stalled. Waited 10 minutes vehicle started with same symptoms but became drivable so we headed to safety 13 mile to nearest town, [xxx]. The area has recently been battling forest fires and in our area, although "safe", there was still high fire danger. We did not feel safe w/o a vehicle for (possible) rapid escape. The city has limited services, no rental car company, no uber/lift, closest car dealership 90 miles away. Vacation cancelled. Hired north [xxx] towing to transport vehicle and people 300 miles to walser [xxx], [xxx]. Family member drove us to our home in [xxx]. To date vehicle mileage - 30,000 miles! information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

SUV shut down when I was driving with no warning. Obd reader code p129f fuel pump power control module is bad gm has recall #n252516900 lists my year and make of my SUV but my VIN# is not included and GMC said that it will not covered because the VIN is not on the list.

The car suffered a long crank, then stalled completely while moving on a public road, which is a severe safety hazard.

Because of the intentional failure of GMC and there promise of “we are professional grade”, I almost got plowed down by a semi when the car began to quit on the highway going 60. After pulling into the next driveway, which happened to be a parker’s kitchen, and ending up on the curb spot, thanking god I wasn’t dead, I sat there for a moment wondering what just happened. As I went to restart the car, it wasn’t having any of it. 40,000 miles, not professional grade GMC, circus grade. Towed it to my home, figuring it has to be something minor and a diy fix. Bought the hyper-tough code reader delivered by walmart and it delivered professional grade results: u18a2, p1787 and p187e. I am beyond pissed. I could have died due to your intentional negligence in manufacturing. I have a car that will not start, with payments. I have searched the internet and found your “save ourselves plan” and let’s do a voluntary recall starting with 2021 on the same failed parts I am dealing with at the moment. Thanks GMC, who is the ringleader of your circus?.

While driving home from work my 2020 GMC Terrain stalled and turned off. I was on a very busy 2 lane road, crossing a intersection in a tourist area in [xxx]. This could have be come fatal very easily. I was able to get the car started and home but had to take it very slow. Next day we weren't able to get the car started nor turned on. Battery is new and still works, we also had a mechanic come to the house and run his computer telling us it was the fuel pump control module. There were no warning signs leading up to this moment. I see there has been recalls for the same issue for 2021 and 2022 models but my GMC dealership I bought my car at is telling this isn't an issue in any Terrain that they are aware of. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Vehicle was filled with a full tank of gas, went to crank the car up to go home from work it acted like it wanted to crank but seemed to be getting no gas. Diagnostic was performed and the fuel pump control module failed. I thank god it did not start because if it did and I just so happen to pull out into traffic and the car just die in the middle of the road I don't think it would of been pretty. Frankly I think it would of be a very dangerous situation. My vehicle was not part of the recall but somehow my vehicle was still affected hopefully gm would look into the 2020 Terrains with the 2. 0 engine. Maybe I will be reimbursed.

Won't start and stay running.

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.

See all problems of the 2024 GMC Terrain 🔎.

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.

My car has started stalling and dying when I slow down, take off or when idling. No power when accelerated, and the smell of exhaust comes into my car. I was making a turn from a red light and my car spit, sputtered, and died right in the middle of the busy intersection. I was almost hit from the rear and another car had to go into on coming traffic to avoid t boning me. I took it to 2 different places to get a diagnosis reading and both places said it was a catalyst problem, and I was told that there was a recall about that because of engine oil clogging it up. My car has been using more oil than usual here lately and im guessing thats why. Now, im afraid to drive anywhere because I don't feel like it safe and the fact that my car doesn't run good enough to drive. I was told by more than 1 person that knows mechanics, that its a issue with the catalyst and that it had a recall on it but I never received one. This is a very concerning safety issue, and one that needs immediate attention before someone gets badly hurt (or worse) because of a bad car part . My car is literally just a lawn ornament now until I can get this issue resolved. I need my car to make a living and support my family. Please, get the recall letters out and get this fixed before someone loses a life.

See all problems of the 2012 GMC Terrain 🔎.

Gas leaking from the hood. High pressure fuel pump.

See all problems of the 2018 GMC Terrain 🔎.

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.

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.

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.

Car reduced speed and the smell of gas filled the car. Car shut off. Check engine light came on with reduced speed. This is the second time this has happened. Gas leaked onto ground from car. Car stalls immediately while driving and does not allow you to press the gas to keep moving. Almost hit from behind on main street.

After vehicle acting like it isnt getting power and trying to die, I pulled into a gas station and turned it off. When I went to restart it, the vehicle kept turning over and over automatically not wanting to start and the engine light came on. I let it sit for about 5 minutes and tried again. It did same thing. I tried a 3rd time pushing the gas pedal and it finally started. I made it home 2 miles away. Turned the car off and tried starting it again with same issues.

Oil consumption, causing high pressure furl pump to clog. It also causes catalytic converter to clog. No warning of oil loss. Causing stalling out while driving. Caused the engine to seize. New engine replaced and still same problem s.

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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.

Fuel pump module failure, there’s a recall on this part for this year model but not my VIN #.

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.

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.

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.

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.

On febuary 14 2026 I was driving on the feeder of the freeway with speeds of 50 mph my car suddenly down shifted in the middle of driving started shaking real bad stalled wouldn’t start wouldn’t go in gear at all would just die and say engine power reduced. This is after it had just been at the dealership and they said all I needed was an update. It had to be towed and the dealership said it was my high pressure fuel pump had failed. They replaced it and gave me the car back. I staled the next morning going to work on the freeway going 70 mph same exact thing happened except this time I could smell gas so strongly. I had to sit on the side of the highway until it was picked up due to gas smell and fear of fire. They say a bolt broke off of the high pressure fuel pump they just installed.

I had a message flash that said the power to the engine was reduce. Next message said check stabilink ( or something similar). . It said drive with caution. I live 2 mins from my job I drove home and pulled in the driveway I then felt the car act like it wanted to shake. This was on 2-10-26 I contacted onstar asked them to run a diagnostic. The codes that came back p0016 p0089 p228d are very well known codes with many people with the same vehicle/engine that have had to replace the engine. The engines have known issues had I known that maybe I could have replaced a part or two or three or four to have a stable vehicle now my vehicle is currently at GMC dealer since Tuesday morning actually had it towed there Monday night. I called Wednesday evening they still wasn't sure the "issue". Thursday I wait until about 1pm spoke with john he said well we are pretty sure you need a new engine the mechanic is checking a few more things the car has no pressure. About a hr later I get a email and a call saying the timing chain skipped and something about the pistons and the valves and I need a new engine . John called me and said well. Ill tell you what we will offer you a brand new engine for the same price as a rebuild plus you get 3yrs 300 thousand warranty for 10,944. Give or take a few dollars. We'll first I paid like 15,500 for the car that I just litetally paid off like Jan 12026. I really feel like had GMC made buyers aware that the vehicle has defective parts/engines buyers could replace parts or GMC should be held accountable. I started googling the engine and found out that there is a class action lawsuit and a recall on " certain" 2017 Terrains depending on the VIN. Same issues my car is having but its saying my car has no recall.

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The engine light came on while driving, saying “engine power reduced”. It barely accelerates, rpms go over 5, it chugs when driving. Taken to an independent service center.

See all problems of the 2021 GMC Terrain 🔎.

Turbo boost went out in my vehicle and 3 others with the same engine, different makes/models. Vehicles were serviced at grayling car care 4430 m-72, grayling, mi 49738 (989) 348-3200. Significant power loss, sluggish acceleration, poor fuel economy, and often strange noises (whining, grinding), accompanied by blue smoke from burning oil and a lit check engine light, with the severe risk of catastrophic engine damage from broken parts entering the engine if driven, requiring prompt replacement. It's generally unsafe to drive with a bad turbo, as metal fragments can destroy the engine.

On January 16, 2026 our 2024 GMC Terrain denali experienced complete loss of power. The car was unmovable from the road, unable to shift into neutral, and unable to release the braking system in addition to the emergency brake. There were no warnings or indications prior to the vehicle's failure at 30,000 miles. The failure happened on a somewhat busy road with no ability to move the car out of the line of higher speed traffic. The cause was ultimately determined to be a fuel pump failure. The part was replaced under the 60,000 mile warranty, however, the issue relating got the fuel pump is known by GMC and has previously been litigated under a class-action suit. Therefore the "resolved" fuel pump issue remains a pressing and potentially dangerous and expensive issue.