2024 GMC Yukon

I am reporting a serious safety defect and unreasonable delay in addressing it under safety recall N252494000 (L87 Engine – Loss of Propulsion). My GMC Yukon has an illuminated check engine light and is now also overheating. According to GM’s own customer service r, this can lead to knocking, unusual engine noises, hesitation, high RPMs, abnormal shifting, reduced propulsion, and sudden loss of propulsion while driving, increasing the risk of a crash. I have contacted multiple dealerships for urgent repair: Cappllino GMC Keller Chevrolet Joe Basil All three have advised me that they do not have enough technicians to get my vehicle in for repair. Each has urged me to continue driving the vehicle despite the active check engine light and recall, and all have refused to provide a loaner vehicle. I have also contacted GMC Corporate directly for intervention. Instead of providing a loaner or expediting repairs, they have only offered post-repair rental reimbursement (up to $44/day after a repair order is opened). This leaves me with no safe transportation option. I have been told I can “drop off” the vehicle, but I have no alternative way to get home or to work. GMC and its dealerships are putting my safety (and the safety of other road users) at serious risk by directing me to continue operating a recalled, overheating vehicle with an active check engine light while refusing to provide any loaner or timely repair. My vehicle has 34,700 miles and is nearing the end of its warranty coverage, which raises additional concerns about potential delay tactics. Please review: The L87 engine defect and related check engine/overheating issues in GMC Yukons. GMC’s handling of this recall, including widespread failure to provide loaners and instructions to customers to keep driving defective vehicles. I authorize the release of my contact information to GMC to assist with the investigation. Attachments I can provide: Screenshots of communications with GMC

Reported

Jul 2026

Incident date

Jul 2026

Mileage

Not provided

Outcome flags

None reported

As I was driving the automatic emergency brakes went off and stopped me so hard and fast that I feel like I got whiplash. The seatbelt yanked me backwards, smacking my head against the headrest, I have an instant headache from it and my neck and shoulder still hurt 20 minutes later. It scared me and my child half to death, my heart was pounding and I could have been rear ended. I was driving about 40mph and was in no way in any harm/needing to break (specially this hard) for anything when this happened. This is not the first time my car has unnecessarily automatically slowed down quickly but this is the first time it’s ever been this abrupt and severe. I will be taking my car to be inspected for this issue and if my neck and shoulder still hurt in the next day or two, I will also be going to the doctor about the incident.

Reported

Jul 2026

Incident date

Jul 2026

Mileage

Not provided

Outcome flags

1 injuries

This truck has the 6.2 GM engine. While driving it late at night at approximately 28mph the engine blew, leaving the truck in the lane and unable to move. This was very dangerous since there was no warning and it just died. The truck receives regular maintenance by GMC and was tested to see if it was a “bad engine” and we were instructed that it wasn’t. GM said it will take 4-8 weeks to get an engine and the value of the truck to trade in is very low due to “marketing issues” which in my opinion is their issue not mine. I am battling stage 4 cancer and just had an operation and need a car to go to the doctors. They have officially said that they don’t have a truck to loan me. This has been going on for years apparently and the government is not doing anything to rectify it for the US tax payers per my research. I need a truck and GM said that they would get back to me within 24-48 hours, we are way past that. What is the government going to do, these trucks are not safe. What if I was traveling late at night to snowmobiling and it blew, it would be a different story. Need some help

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

At 35k miles our 2024 Yukon Denali with a 6.2L engine blew on a roadway with no known warning. Extremely dangerous situation with my pregnant wife and child in the car.

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

On our way home from vacation our engine failed and stranded us. This is the second engine that has failed and the vehicle only has 30220

Reported

May 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

I would like to document it took 7 trips to set the monitors after a failed smog check. That is 21 time going from 55 miles a hour to coasting to 20 miles a hour. on a freeway. Three times per trip at 2:00 - 3:00 in the morning. Also my Catalytic Converter went out at 26,000 miles. It should last 70,000 - 100,000 miles or 10 years. Catalytic Convertor was replaced by dealer. Will i have to replace it every 26,000 miles?

Reported

May 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

My engine ticks, and during the winter, I noticed white smoke coming from exhaust pipes in cold and warm weather. I believe there may be an issue with my engine. My vehicle is not on the list provided, and I’m concerned that the dealership responsible for my oil change package will not identify the problem, possibly because newly hired mechanics may lack the experience to make an accurate diagnosis. I’m afraid my vehicle will be overlooked intentionally.

Reported

May 2026

Incident date

Oct 2025

Mileage

Not provided

Outcome flags

None reported

For the third time, my vehicle died on me while I was driving; 2 of those times were on the highway going highway speeds. The last (3rd) time, I was towing my travel trailer/RV on the highway. In all incidents, the engine stopped propelling the vehicle. I could see and hear the engine revving but I failed to accelerate. After various warnings on the dash, I was able to pull safely off the road and then the engine just stopped, and nothing else worked. It failed to restart. This could have been a potentially dangerous situation because had I not been able to safely pull over, I would have been rear-ended. My vehicle was not part of the L87 recall for the 6.2L GM engines but the symptoms sound the same as those that were. The recall probably should have been expanded beyond the dates that GM originally included.

Reported

May 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

Engine suffered catastrophic failure without warning while traveling highway speeds after being cleared during recall check and suggested oil viscosity change. Most recent dealer performed service on 4/3/26 showed no mechanical issues and engine failed 2 weeks later on 4/17/26.

Reported

May 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2024 GMC Yukon. The contact stated that while the vehicle was stopped at a red traffic light, the accelerator pedal was depressed and the vehicle stalled. The message "Conditions not Available to Change Gear" was displayed. The vehicle was restarted and driven to the residence. The contact stated that several days later, while pulling into a parking lot, the vehicle unexpectedly stalled. The vehicle was restarted and was then towed to the dealer; however, the failure could not be duplicated. The manufacturer was notified of the failure. The failure mileage was approximately 24,000.

Reported

Apr 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

From the time i got my 2024 yukon denali i have had problems with the electrical systems not working, it was in the shop for 2 months upon delivery to me when it was brand new, and since then i have had issues with the engine racing, the start button not working, or cutting off and on , on its own, recently the motor cuts on but never turns over. It has been in the shop again for over a week now and they replaced the engine control module and it is still doing the same thing. The dealership is now telling me its a wiring issue causing it. It has been something the entire time I have owned it. I paid 90k for a vehicle that has major issues. I am looking into the Lemon law in my state of NC, and filing a complaint with GMC to see if I can get a replacement vehicle or traded.

Reported

Apr 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

Vehicle shut-off while driving on the expressway, around 70-75mph. Upon vehicle turning off, I had no option but to "coast" off to the left side, which thankfully, freed me from traffic for the most part. If anyone who have been a foot over, they would've hit me. I have had numerous electrical issues with this vehicle and have taken it to the dealership but they have been "unable" to duplicate the issue. Vehicle was immediately taken to the dealership (and they still have as of this incident report submission). They told me last night that they will keep it again today and test drive it again to see if they can get it to do anything but if it doesn't show anything new, they have nothing to diagnose and will give me my car back. After requesting a copy of repair orders and a list of the history codes in my car, I am beside myself that anyone thinks giving me this vehicle back to drive is ok. See the history code report in documents uploaded. These are MAJOR safety failures in a large vehicle.

Reported

Mar 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

We were driving on the highway when the service lights came on along with the check engine light started flashing. The truck sounded like it hesitated a little, but the lights turned off and it drove his normal. We exited the freeway as we were close to home came home, parked it turned it off and turned it back on to test it, and it hesitated to turn on so we took it straight to the dealership where they repeated the issue. We left it there. They did not call me so I went up to the dealership the following day to check on this and I had not heard from them they told me why they were on the test drive that the engine had locked up. My vehicle was a part of the initial recall. They told me that it passed the inspection and they changed the oil to the new oil that was required and now at 12,000 miles my engine has failed

Reported

Mar 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

The SUV has 46,000 miles on it. Recently, the check engine light illuminated, prompting me to take it to the dealership for servicing. The diagnostic codes retrieved were U0285 and U1345. I was informed that the aero shutter required replacement. There was no physical damage; it merely ceased functioning. The dealership confirmed the active check engine light and conducted a diagnosis. While my safety was not immediately compromised, I felt extremely frustrated upon learning that GM would not cover the repair under warranty, despite this being a recognized issue that GM has yet to address. This situation is simply unacceptable and warrants further investigation and resolution.

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

This report documents two separate safety incidents involving the same vehicle that occurred on different dates. Approximately one month prior to the most recent incident, while driving my young children to school, the vehicle experienced a sudden and severe loss of braking effectiveness while in motion. I was unable to stop normally at stop signs and had to roll through and roll to a stop. I was required to press the brake pedal fully to the floor to slow the vehicle, and even then braking response was significantly reduced and not functioning as designed. The engine remained running and the vehicle could still accelerate. After stopping and restarting the vehicle, braking function temporarily returned. On a later date, while again transporting my children, the vehicle experienced a complete loss of power while driving. The vehicle abruptly shut down while in motion. I was unable to accelerate and experienced loss of power assisted braking. The vehicle only came to a stop after coasting. Following this shutdown, a burning or melted plastic odor was present. The vehicle was later towed and inspected by a dealership. The battery was replaced; however, this did not resolve the issue. After the battery replacement, the vehicle later hesitated to start again. The exact cause of these failures remains unknown. These incidents occurred without warning and represent serious safety critical failures involving braking and propulsion systems. Both incidents placed my children, myself, and other motorists at risk. Had either event occurred on a highway or heavily trafficked roadway, there would have been little to no ability to safely slow or stop the vehicle, creating a significant risk of collision or serious injury. Due to these events, I no longer feel safe operating this vehicle and have stopped driving it. The vehicle remains available for inspection.

Reported

Jan 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

Vehicle can be completely off and windshield wipers are still going. So you have to pop the hood and pull fuse out. If you want to use them ( it starts raining, dirty windshield) you have to stop pop the hood and put fuse in. Has been in shop almost weekly repaired every part they could possible switch and still not repaired.

Reported

Jan 2026

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

While parked, my [XXX] daughter was in the third-row bench seat. The seat belt became wrapped around her body/neck area. The seat belt entered its 'Automatic Locking Retractor' (ALR) mode and continued to tighten as she moved, pinning her against the seat. The locking mechanism would not release, and the belt became so tight she was unable to breathe. We attempted to manually release the buckle and create slack, but the retractor remained locked and continued to tighten. After several minutes of unsuccessful attempts to free her, we had to use a cutting tool to sever the seat belt to save her life as she couldnt breath, she has brusing where the seat bealt was tighten. The vehicle was stationary in a parking lot at the time. The car has not being inspected , there was not warning. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Jan 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

I have a 2024 GMC Denali that had an engine service appointment in September 2025 for the engine recall where they did an oil change & put in performance grade oil & scoped my engine. Rochester Serra GMC said they sent all the engine pictures to GM and my engine was okay according to them. After that appointment in November my engine light went on and my Denali was leaking oil in my driveway. We took the truck back to Serra GMC Rochester and they replaced the oil filter that they said was defective & an oil change was done after my husband requested that just filling up the oil was not okay. They also told us the engine light didn’t show up on their computer system and it must have cleared out, so nothing was done for that. Today 1/25/26 now about a month later my engine light is back on and has remained on with multiple starts. This is not acceptable and needs to be investigated and I want this escalated. I do not feel comfortable driving my truck with this engine light on with a known engine propulsion recall that has no actual cure. The oil replacement and cap change has done nothing and engine light remains on. I just don’t want to hear the same thing that the computer must have cleared the error code. My engine light is on for a reason and I’m asking for a thorough diagnostic test to be done by a certified technician and a get a valid explanation of why my engine light keeps going on & not just changing my oil or waiting for something catastrophic to happen to me or my family. GM is putting me and my family at risk by saying that my truck’s engine is fine when clearly the engine light keeps repeatedly going on for 3 months in a row now since November 17, 2025.

Reported

Jan 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

Vehicle 4WD performs poorly with car fishtailing at very low speeds 30 MPH in a straight lane. Very scary . Feels unsafe to drive . Brand new tires were installed prior to that. So not a tire issue.

Reported

Jan 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

Driving down the inter state lost power and RPM raised, oil light came on and said to shut off. We checked the oil it was fine. Got back on the road then a knocking started and the vehicle shut off. I tried to start again and it wouldn’tand hour or so later it started and was knocking bad, I turned it back off. called tow truck driver to have it towed to the dealership.

Reported

Jan 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

I want to report the dealership, Hill GMC, in Newtown Square PA and the salesman, Vince Pace, that special ordered this vehicle for me in December of 2023 knowing full well that these cars had an engine problem. It was deceitful and cunning. I purchased a GMC 2024 Yukon Denali for $102,000 I am a senior citizen and I was taken full advantage of in this fraudulent sale.

Reported

Jan 2026

Incident date

Dec 2024

Mileage

Not provided

Outcome flags

None reported

See attached document for complaint.

Reported

Jan 2026

Incident date

Dec 2025

Mileage

Not provided

Outcome flags

None reported

November 12, 2025 - Turned on car and immediately noticed multiple system failure notices and very slow ability to brake. Immediately took to dealership - said battery needed to be re-charged. December 9, 2025 - turned on car and once again immediately noticed multiple system failures and very slow ability to brake. Failures were "Brake System Failure, 43 MPH Top Speed, Forward Collision System Unavailable, Service Brake Pad Monitor, Service ESC, Service Traction Control, Service Sterring Column Lock" Immediately took to dealership. Over the last 25 days in service all the dealership has told me is that their master technicians have looked it over and do not know the root cause. They are waiting for a new technician from GM. They also have another Yukon at the dealership with the same safety symptoms. No issues with the car prior to these two instances of failures. Car should not be driven.

Reported

Jan 2026

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

I bought my truck on 10/29/25 on 12/04/25 haven’t even maid my first payment on the truck yet and my wife was on her way to work at 4 am when the engine shut off on its own and went in to neutral. She tried starting the truck again and it wouldn’t so she had to leave the truck abandoned in the middle of the road and walk to work in the cold and dark. We ended up getting the truck towed home a few hours later when there was a tow truck available. I work out of town so on 12/07/24 when I got back in town I started the truck up and everything seemed normal so I took it for a spin and right as I was getting on the highway it lost propulsion, engine shut off, and truck shifted on its own to neutral. I was almost rear ended by the truck behind me luckily I was able to get the truck out of the way in time. I had to sit and wait for 3 hours until a tow truck was able to tow the truck. This was on a Sunday so I could not get it dropped off at the dealership due to them being closed until the next day! Finally I got it towed to the dealer (all tow’s paid out of pocket as well)… 3 days later the dealer calls me back to let me know I’m getting a new engine not sure how long it will take, but they will get me a rental mean while and that’s all.

Reported

Dec 2025

Incident date

Dec 2025

Mileage

Not provided

Outcome flags

None reported

Start transmission was replaced by dealer at 75 miles. 2nd transmission was replaced at 175 miles transmission was humming and slipped at around 30 to35 mph this was around April of 2024 August 1 2025 while driving at 45 dash board lit up went flashing and suv slowed dramatically down to 30 mph Got to dealership and they kept the vehicle for about a week and returned it with it being supposedly fixed. About mid October while driving at 60 mph it shut down again almost causing a wreck went to 30 miles per hour again. Hurt my wife’s neck when it reduced speed so quickly. Took back to dealership and I told them this car is dangerous this was with about 20 k miles Been in shop was told it is scanning with 22 repair codes we have not had the car for 5 weeks and are trying to work with gm and dealer to get us out of it. But as of this report no progress. On interstate in city traffic this car will hurt or kill many people. I’m refusing to let my family or myself drive it. There is no warning when it will flash lights in dash and reduce speed. Also the front crash sensors went out and are currently not working we have all service records and paperwork that has been done including maintenance records We were given vehicle back with no warnings. I went to Nita’s and ran vin and it still shows issues. We are still making payments but driving a loaner car. The car is dangerous. I advised the dealer the first time it happened. I didn’t want it back. My wife went and got it and it sis it the second time and now she agrees it is dangerous contacted GM and they want to fix it but dealer implies they can’t ?..

Reported

Nov 2025

Incident date

Oct 2025

Mileage

Not provided

Outcome flags

1 injuries

Oil consumption, vehicle is using 1 quart minimum every 2000 miles, has been through 3 service cycles in 17303 miles due to this issue. Has had recall test done by Morehart GMC in Durango, CO as well as oil consumption test completed by same dealership. The first time this occurred the vehicle was taken to Hi Country GMC in Farmington, New Mexico, USA, where the service manager blamed the issue on driving.

Reported

Nov 2025

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

The forward collision automatic breaking sensor has already failed with only 15,000 miles. As well as the backup camera - it has already been replaced once

Reported

Nov 2025

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2024 GMC Yukon. The contact stated that while driving at an undisclosed speed, there was an abnormal burning odor entering the vehicle from the engine compartment. There was no warning light illuminated. Upon inspection, the contact observed that the vehicle was burning oil. The dealer was contacted, but the vehicle was not diagnosed or repaired. The contact expressed concerns that the issue might be related to carbon monoxide entering the engine compartment and cabin, which could pose a serious safety hazard. The manufacturer was made aware of the failure. The approximate failure mileage was 28,750.

Reported

Nov 2025

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

On 15 Aug 2025, I was driving this vehicle on Rte 151 in raccoon township with my 2 children when the vehicle suddenly and unexpectedly experienced a “loss of propulsion” with a corresponding uncommanded shift to “neutral”. Attempts to shift the car back into drive were met with a “parameters not safe” caution. I was fortunate enough that the vehicle behind me was able to slow and an accident was avoided. The thought that this could have happened with my family on the highway, during adverse conditions, or any other scenario is frightening to say the least. Other owners of affected models weren’t as fortunate.

Reported

Oct 2025

Incident date

Aug 2025

Mileage

Not provided

Outcome flags

None reported

While driving on the interstate, I felt the engine "slip". Immediately afterwards, I heard a load knocking noise from under the hood, the check engine light came on, and the vehicle lost power. I was able to pull off the interstate. Called a towing company and got the vehicle towed to a GMC dealer. The dealership diagnosed the vehicle and noted a critical issue with the engine and transmission. Dealership recommends engine replacement. Vehicle is less than a year old with 15,400 miles on the odometer. This particular vehicle is not impacted by the GMC recall on their engine, however is has the same engine failure.

Reported

Oct 2025

Incident date

Sep 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2024 GMC Yukon. The contact stated that while driving at a slow speed in the driveway, the vehicle inadvertently lost motive power but immediately restarted. After restarting the vehicle, the vehicle briefly returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The VIN was included, but parts were not yet available. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 26,000.

Reported

Sep 2025

Incident date

Sep 2025

Mileage

Not provided

Outcome flags

None reported

I am the owner of a 2024 GMC Yukon (VIN: [XXX] ), purchased from Hatchett Buick GMC on [XXX]. This vehicle was purchased at a high price with the expectation that it would provide reliability and keep my family safe. Unfortunately, that is clearly not happening. The Yukon continues to suffer from severe power loss that neither the dealership nor GM technicians have been able to diagnose or repair. In addition, this vehicle is subject to an unresolved engine recall, further undermining safety and confidence in the vehicle. Multiple times while driving I have had total power loss with no warning or indicators of this happening through lights or warnings on the vehicle. This is separate from the engine recall issues I am currently experiencing as well. While driving the Yukon will lose all electrical power. The vehicle is still currently at the dealership trying to be diagnosed. It has been 2 weeks. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Sep 2025

Incident date

Aug 2025

Mileage

Not provided

Outcome flags

None reported

Rear doors opening while driving without notice. Child almost fell out of the car on main road. 2nd incident is less than 6 months. Same car

Reported

Sep 2025

Incident date

Sep 2025

Mileage

Not provided

Outcome flags

None reported

I have had several time that going down the highway at around 70 MPH with the cruise control on. Know other cars or trucks around me, my car loses power, put on the brakes. If I press on the gas petal, the car will accelerate. Never a warning, scares the heck out of you. Fortunately when this happens I have never had a car or truck behind me. If there would be a car or truck behind me, this could cause a collision for sure. No warning lights comes on. I've told the GMC dealer twice about this. Twice I was told to make another service appointment to bring my Yukon back. I was told that no service tech was available to look at this at this time.

Reported

Sep 2025

Incident date

Dec 2024

Mileage

Not provided

Outcome flags

None reported

I HAVE HAD PROBLEMS WITH THE NAVIGATION SYSTEM WHERE THE SCREEN GOES BLANK. THE RADIO IS NOT RESPONDING AND SCREEN IS BLACK. WHEN TURNING ON THE SIGNAL LIGHT YOU CAN'T HEAR IT. THE SPEED LIMIT IN MY TOWN IS 25 AND AFTER AN UPDATE FROM THE DEALERSHIP IT NOW SAYS 55. I GET AN ALERT SAYING FRONTAL CRASH NOT AVAILABLE ATLEAST ONCE A MONTH. THERE ARE TIMES WHEN WE ARE DRIVING AND WE GET THE RED ALERT AS TO DETECTING AN OBJECT AND THERE IS NOTHING THERE. PARKING ASSITS DOES NOT WORK ALL THE TIME.

Reported

Sep 2025

Incident date

Aug 2025

Mileage

Not provided

Outcome flags

None reported

While super cruise was engaged the car changed lanes automatically without any action on my part. The problem is I had set the automatic lane change feature to only activate when the turn signal was switched. While examining the vehicle settings I discovered that the feature was set to automatic not turn signal activated. What cause the software to change this setting? The service tech could not find any problem but guessed that when the software is updated it goes to a default setting. This is wrong. Setting should not change. The setting also changed on opening the tail gate with my foot. This setting was turned off.

Reported

Aug 2025

Incident date

Aug 2025

Mileage

Not provided

Outcome flags

None reported

I am the owner of a 2024 GMC Yukon Denali/AT4-T1, currently subject to GM Program #N252494000 for the L87 Engine Loss of Propulsion engine defect that can cause sudden engine failure, loss of power, and safety hazards. My vehicle has approximately 18,000 miles and is my primary mode of transportation. GM has informed me that I cannot request an immediate inspection and that they are randomly selecting affected vehicles for inspection without a clear timetable. This means I must continue driving a vehicle with a known safety defect that could fail at any moment — creating an unreasonable risk for myself, my passengers, and others on the road. My dealership has confirmed they cannot perform the inspection until GM activates my VIN in their system. No estimated timeframe has been provided. Given the severity of the defect and the potential for catastrophic failure without warning, I respectfully request that NHTSA investigate GM’s phased approach to inspections and determine whether this practice is consistent with the safety obligations under 49 U.S.C. Chapter 301 and related regulations. I also request guidance on how I can have my vehicle inspected immediately to mitigate risk. Thank you for your attention to this matter.

Reported

Aug 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2024 GMC Yukon. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted. The manufacturer was made aware of the issue. The manufacturer was unable to provide any information on when parts would be available. The contact had not experienced a failure.

Reported

Aug 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2024 GMC Yukon. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the contact called two dealers, and was advised that the vehicle could not be repaired under the recall. The contact called several times and was advised that the dealers could not service the vehicle yet. The contact had not experienced a failure. The manufacturer was informed of the failure and advised the contact that the vehicle could be taken to any dealer for the recall repair. The contact had not yet called a dealer to schedule an appointment. The vehicle was not yet repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.

Reported

Aug 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

I had just backed the truck out of a parking space (while turning) and shifted the transmission into 'Drive' with my foot pressing the brake pedal (not the gas pedal). When I took my foot off the brake pedal in order to transfer it to the gas pedal the vehicle suddenly accelerated forward without my foot ever pressing the gas pedal. The vehicle traveled forward about 20 feet before I was able to stop it by pressing the brake pedal. I am a retired General Motors Safety engineer and I know I was not pressing the gas (accelerator) pedal when this sudden acceleration event occurred. I believe this type of event occurred one other time while I was driving this vehicle. However, I am not as clear about the circumstances surrounding this previous event.

Reported

Aug 2025

Incident date

Aug 2025

Mileage

Not provided

Outcome flags

None reported

NHTSA Complaint: Campaign 25V274 Vehicle: 2024 GMC Yukon (VIN: [XXX], 33,293 miles) GM Case [XXX] Recall: N252494000 (NHTSA 25V274), issued April 24, 2025; related bulletins N252494001, N252494002, N252494003 Defect: Manufacturing defects in the 6.2L V8 (L87) engine’s connecting rod and/or crankshaft, risking engine failure and crashes. GM acknowledges 12 potentially related alleged crashes and 12 alleged injuries in the U.S. Issue: My vehicle has been at Royal Buick GMC, Inc. (355 Rte 23 N, Sussex, NJ 07461) since April 10, 2025 (106 days as of July 25, 2025). The recall remedy (inspection for DTC P0016, oil change to 0W-40 if passed, or engine replacement per N252494002 if failed) is unavailable, with no engine repairs performed per invoice RO# [XXX] (dated July 22, 2025, check-in April 10, 2025, 9:30 PM, ready July 22, 2025, 9:48 AM). The invoice shows only a multi-point inspection ($50.00, Customer Pay), next appointment ($50.00), and courtesy transportation (no charge). A condition report dated July 24, 2025, notes “4 issues” from a visual inspection, recommending a complete dealership check, indicating unresolved safety concerns. The dealership provided a lesser-value loaner, inadequate for a premium SUV. The vehicle was purchased on [XXX], for $87,821.64 (per Acceptance_Declination Sheet_[XXX}), entitling me to a safe vehicle under warranty. On July 23, 2025, at 3:30 PM EDT, Tom McGillis texted, “Hello, Your vehicle is in the shop and should be done first thing tomorrow. I have it schedule for a wash tomorrow. I will follow up mid-afternoon on its status. ty!” No recall repairs mentioned. Maggie stated they were waiting for the “new car shine to dry,” confirmed no solution, and said engine replacement queries were “above her paygrade.” I instructed her I will not accept an unsafe vehicle. On July 24, 2025, at 8:45 AM EDT, Andrew Wilson confirmed no remedy, stated rear differential repairs are complete (not reflected in invoice), and INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Jul 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2024 GMC Yukon. The contact was notified of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was made aware of the issue and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

Reported

Jul 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2024 GMC Yukon. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that occasionally while driving at various speeds, the vehicle temporary lost automotive power. No warning light was illuminated. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 18,163. VIN tool confirms parts not available.

Reported

Jul 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

NHTSA Complaint: Campaign 25V274 Vehicle: 2024 GMC Yukon (VIN: [XXX] , 33,294 miles) GM Case #[XXX] Recall: N252494000 (NHTSA 25V274), issued April 24, 2025; related bulletins N252494001 (dealer inventory), N252494002 (engine replacement) Defect: Manufacturing defects in the 6.2L V8 (L87) engine’s connecting rod and/or crankshaft, risking engine failure and crashes. Issue: My vehicle has been at Royal Buick GMC, Inc. (355 Rte 23 N, Sussex, NJ 07461) since April 10, 2025 (104 days as of July 23, 2025). The recall remedy (inspection for DTC P0016, oil change to 0W-40 if passed, or engine replacement per N252494002 if failed) is unavailable, with no repairs performed per invoice RO# [XXX} (July 22, 2025). The dealership provided a lesser-value loaner, inadequate for a premium SUV. On July 23, 2025, at 5:03 PM EDT, the dealership texted, “Your vehicle is in the shop and should be done first thing tomorrow. I have it schedule for a wash tomorrow. I will follow up mid-afternoon on its status. ty!” Maggie stated they were waiting for the “new car shine to dry.” When asked if the engine was replaced, Maggie said it was “above her paygrade” and confirmed no solution exists, with no timeline for remedy availability. I instructed her I will not accept an unsafe vehicle and to relay this to the service manager. NHTSA.gov [XXX] ) confirms the recall is unrepaired, remedy not available. Communications with GM: July 15, 2025, 3:00 PM EDT: GM Customer Support Supervisor Rochelle confirmed no parts or resolution timeline. July 15, 2025, 3:30 PM EDT: SMS to Tom McGillis, service advisor, requesting update. No actionable GM response. July 23, 2025, 1:32 PM EDT: GM representative Cynthia stated GM had not heard from the dealership and escalated Case [XXX] to internal corporate resolution. No parts or timeline provided. Complaint: GM’s 104-day delay in providing a recall remedy (N252494000/N252494002), inadequate loaner, INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Jul 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2024 GMC Yukon. The contact stated while starting the vehicle, there was a loud knocking sound coming from the engine compartment. There was no warning light illuminated. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The vehicle was taken to the dealer but was not diagnosed or repaired. The dealer informed the contact that authorization was needed from the manufacturer to complete the inspection of the vehicle. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure and a case was opened. The approximate failure mileage was 21,116. VIN tool confirms parts not available.

Reported

Jul 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2024 GMC Yukon. The contact stated that while at a stop light the vehicle stopped and failed to move forward. The contact restarted the vehicle. There were no warning lights illuminated. The contact was concerned about driving the vehicle with her young children inside. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 11,000. VIN tool confirms parts not available.

Reported

Jul 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

While driving back home on the interstate the vehicle suddenly started making a loud clicking noise and came to a stop, luckily I was not hit. I was able to turn it back on drive it slowly with very little power to a safe spot.

Reported

Jul 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

I am filing a complaint regarding a potential safety defect in my 2024 GMC Yukon Denali (approx. 25,000 miles), which has been in the dealership’s service department for about 30 days due to a faulty valve body in the transmission system. There is currently no estimated date for repair completion due to a lack of available parts. This is the second time the vehicle has been in the shop for the same unresolved issue. Earlier in 2025, I brought the car in due to driveability concerns and error messages appearing on the dash, but the dealership dismissed it and claimed I had “turned the vehicle on wrong,” despite it having a push-button start. The problem persisted until June 2025, when they finally diagnosed the valve body failure. This issue directly affects drivability and vehicle safety, particularly during acceleration and gear shifting. I am concerned that General Motors is aware of widespread valve body and transmission failures in these vehicles, yet continues to produce and sell new units while failing to ensure parts are available to support timely repairs. It is unacceptable that a major safety-related transmission issue can sideline a relatively new vehicle for over a month with no resolution in sight. GM’s lack of urgency in addressing this defect suggests a disregard for consumer safety and reliability. I respectfully request that the NHTSA investigate this issue as a potential pattern of safety defects in GM’s full-size SUV transmission systems.

Reported

Jul 2025

Incident date

Jun 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2024 GMC Yukon. The contact received notification of NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

Reported

Jul 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2024 GMC Yukon. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

Reported

Jul 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

General Motors, LLC (GM) is recalling certain 2023 Chevrolet Silverado 1500, GMC Sierra 1500, 2023-2024 Chevrolet Tahoe, Suburban, GMC Yukon, Yukon XL, Cadillac Escalade, and Escalade ESV vehicles. The electronic brake control module software may fail to display a warning light when a loss of brake fluid occurs. As such, these vehicles fail to comply with the requirements of Federal Vehicle Safety Standard number 135, "Light Vehicle Brake Systems."

Risk: Without a warning light, the vehicle may be driven with low brake fluid, which can reduce braking performance and increase the risk of a crash.

Remedy: The Electronic Brake Control Module (eBCM) software will be updated through an over-the-air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed October 25, 2024. Owners can contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N242447990.

General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.

Risk: Engine failure increases the risk of a crash.

Remedy: Dealers will inspect the engine, and as necessary, repair or replace the engine. For vehicles that pass inspection, dealers will add higher viscosity oil, install 6 oil fill cap, replace the oil filter, and update the owner's manual. Repairs will be performed free of charge. Owner notification letters were mailed June 18, 2025. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N252494000.

General Motors, LLC (GM) is recalling certain 2021 Cadillac Escalade, 2021, 2023-2024 Chevrolet Tahoe, and 2022 and 2024 GMC Yukon vehicles equipped with a 6-cylinder diesel engine. The original fuel tank may have been replaced with an incorrect fuel tank, which can allow fuel to leak in a rollover crash.

Risk: A fuel leak in the presence of an ignition source increases the risk of a vehicle fire.

Remedy: Dealers will inspect for the correct fuel tank and replace it, if necessary, free of charge. Owner notification letters were mailed November 5, 2025. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N252512770. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on September 18, 2025.