2023 GMC Yukon XL

The contact owns a 2023 GMC Yukon. The contact stated that while driving at an undisclosed speed, the engine seized. No warning lights were illuminated. The vehicle was towed to the dealer and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was repaired. The contact was informed that the repair was covered under an unknown recall repair. The vehicle was released back to the owner; however, the failure reoccurred. The contact stated that the vehicle was idling roughly and jerking abnormally. In addition, the contact stated that the drive to the residence was not a smooth drive. The vehicle was taken back to the dealer, where a technician performed a ride-along. The contact stated that the engine seized three times during the ride along. The contact was informed that the engine needed to be replaced a second time. The contact stated that when the vehicle was released, the rear bumper was damaged. Additionally, while attempting to start the vehicle, the Forward Collision Avoidance warning light was illuminated. The vehicle remained with the dealer. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 44,000.

Reported

Jul 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

While driving about 70 mph in the express lanes, the vehicle suddenly lost power and drifted like it went into neutral. There were no warning symbols. The vehicle could not restart even while coasting. After stopping, it locked itself in park and would not shift out of park. My family and I were trapped on the express lanes for over an hour in a dangerous location. The vehicle stayed stuck in park even on the tow truck. The dealer confirmed metal in the oil filter, a blown main fuse, and knocking when starting. The recall inspection and remedy were already done, but the failure still happened. The vehicle is undriveable and the required recall repair cannot be completed because the replacement engine is on backorder with no ETA.

Reported

Jul 2026

Incident date

Jul 2026

Mileage

Not provided

Outcome flags

None reported

Engine seized after the pico test. Been 3 months waiting on an engine

Reported

Jul 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

My wife and I were traveling to Denver CO to pick up my son and grandson from the airport. The engine started to make a very exaggerated rattle. We found a dealership near our motel where we took the vehicle to and were told not to drive home that the engine needed to be replaced. We had to arrange our own transportation for both us and the vehicle 8 hrs back to our home in Rapid City, SD where our local dealership replaced the engine. The vehicle had approximately 65,000 miles when this occurred. Fortunately we were in a populated area when this occurred as there is a lot of very sparsely populated area between our home and Denver. This malfunction not only cost me a lot of money but also put my family at risk in unfamiliar areas.

Reported

Jun 2026

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

lost power going down highway and coasted to a stop on the side of the road. car was towed to a nearby gmc dealership and after inspection a new 6.2 motor is needed. I did not notice any warning signals when I lost power.

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

Engine 6.2L failed going down the highway. Very Scary

Reported

Jun 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

I was on the highway heading home with my [XXX] son in the backseat and without warning the engine shut down and luckily we were on the exit ramp and away from heavy traffic. I pulled over to the side and tried to start it again but it won’t even crank. The cabin heater stopped working too, It was -9 Degrees outside that day and we started to freeze, luckily my wife was able to get to us in 20minutes. The vehicle was towed to GM dealership and they confirmed the engine seized and will need a new engine under special coverage N252494003-03. This was after the recall was completed for this vehicle. It had only 61392KMS on it. We live in [XXX] and it gets extreme winters with below -40degree temperatures. It’s a remote area and there is no service on the highway for 200KMS when heading south to city, if this would have happened on the highway with no services and extreme weather we wouldn’t have made it out alive. We are a family of 5 with a [XXX] and a [XXX] and we bought this vehicle after knowing that the engine recall was completed and GM deemed it safe. Unfortunately that’s a lie and GM is putting peoples safety and life at risk. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

May 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

This vehicle was identified as recalled in 2025 for total engine replacement and the engine did fail in May 2025 it would stall while driving. GMC performed the engine replacement in June of 2025. The car stalled again on Friday May 1. It was taken to the dealer on May 7 and was diagnosed as needing another complete engine replacement. I was told that gmc identified a need to replace more parts after my engine was replaced but I was never informed of this. I was told my this dealership that I am the first vehicle they’ve seen that will require a second full engine replacement It is a 6.3L v8. This car stalled while I was driving with a 3yo in the vehicle.

Reported

May 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

My 2023 GMC Yukon Denali is currently at the dealership due to a manufacturer recall involving the engine. The engine issue occurred while I was driving with my children in the vehicle, which required me to pull over and have the vehicle towed to the dealership After inspection, I was told the vehicle requires a full engine replacement. The dealership has stated there is no estimated time of arrival for the replacement engine due to backorder, and that other customers have been waiting for extended periods. I am currently without my vehicle and have been provided a temporary replacement that is not comparable. The extended delay and lack of timeline are causing significant loss of use.

Reported

Apr 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

on 2/28/26 i experienced complete engine failure on my 23 Yukon. I was going 70mph on the highway when the engine kicked and and kicked into neutral. the car spent 6 weeks in the dealer to have the engine replaced. i picked up the car on Wednesday, 4/15. On 4/16, i was once again driving, as normal when it suddenly turned off and kicked into neutral. 1 day after I picked up the vehicle it is once again being towed back to the dealer for the same symptoms it had when the entire engine had to be replaced. Both times, there is no warning. The car dings and a message comes up saying "restart vehicle". On 2/28, the car would not restart. On 4/16, the car did restart but only temporarily This is a major safety problem. The first occurrence I was going 70mph on the highway when i lost power. The second occurrence, I was driving 20mph on my neighborhood street and suddenly lost all power.

Reported

Apr 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2023 GMC Yukon XL. The contact stated that while driving on several occasions at various speeds, the vehicle experienced unexpected gear shifting. The check engine warning light illuminated and then disappeared when the vehicle was restarted. The vehicle was not diagnosed or repaired. The contact used a handheld diagnostic machine and retrieved DTC: P0747. The manufacturer was notified of the failure. The failure mileage was 67,000.

Reported

Apr 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

I own a 2023 GMC Yukon Denali. In Nov. 2023, at about 4,000 miles, the vehicle suffered a complete engine and electrical failure at highway speed while I was traveling with my husband and three small children. It suddenly lost all power in the fast lane, including acceleration and engine function. Steering became extremely heavy, consistent with loss of power steering assist, and the electronics shut down. We had to guide the vehicle across traffic while coasting downhill to the shoulder beyond a guardrail. Traffic had to avoid us, creating a serious safety hazard. The vehicle would not restart. The vehicle was towed and required a complete engine replacement under warranty. After that replacement, additional issues followed. There was an HVAC/defrost concern. In June 2025, the vehicle again became inoperable without warning while parked at a store. It would not start despite repeated attempts, including by a dealership representative. A diagnostic scan produced over a page of error codes, but the dealership could not identify a cause and stated the vehicle was safe. In Dec. 2025, the vehicle engine was inspected under a recall and I was told there were no issues. In Feb. 2026, the vehicle lost heat and was found to have no coolant despite regular maintenance and recent inspection. In Mar. 2026, at about 37,700 miles, the vehicle developed a loud clunking noise while driving. I stopped driving and returned it to the dealership, where I was told the engine had failed again and required another full replacement. The vehicle has now had two engine failures and three engines installed in less than three years. There were no warning lights or prior indications before these failures. I no longer believe this vehicle is safe or reliable for transporting my family.

Reported

Apr 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

The panoramic sunroof on my 2023 GMC Yukon Denali Ultimate XL spontaneously exploded while driving westbound on I-20 on March 13. There was no impact from road debris, no vehicles ahead, no overpass, and no external cause. The failure sounded like an explosion or gunshot. Tempered glass shattered with the sunroof in the closed position, showering the interior with glass fragments. Five occupants were in the vehicle at the time. No injuries occurred, but the sudden explosive noise and shower of glass created an extreme distraction and safety hazard while operating the vehicle at highway speed. The incident could easily have caused a loss of vehicle control on the interstate. The component that failed is the factory-installed panoramic power sunroof glass, standard equipment on the Denali Ultimate trim. The vehicle was taken to Lugoff Chevrolet for inspection. The dealer confirmed the glass failure and submitted a request to GM for warranty or goodwill coverage. GM offered to cover only 10% of the repair cost, characterizing the failure as an out-of-warranty wear issue despite the spontaneous nature of the defect. There were no warning signs, cracks, chips, warning lamps, or any indication of a problem prior to the failure. The sunroof was closed at the time. The vehicle has been dealer-maintained with no modifications to the sunroof or roof structure. This is a known industry-wide defect. NHTSA has previously investigated spontaneous sunroof shattering and documented over 4,000 complaints. GM has acknowledged awareness of this issue in other GM vehicles and previously issued corrective actions for sunroof glass on the Buick Regal and Chevrolet Cruze. Other GMC Yukon owners have filed NHTSA complaints describing identical failures. The failed sunroof glass and vehicle are available for inspection upon request.

Reported

Mar 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

The onstar module of my 2023 GMC Yukon has failed. This is a wide spread issue with recent model GMC's. There are thousands of reports of the same thing happenings. When an onstar module fails, the vehicle loses its safety features. No lane departure, no collision detection or pre-collision braking, no critical system checks. Even the gas and mileage components stop working correctly.

Reported

Mar 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

The vehicle has the L87 GM engine. It lost complete power and the engine seized up and would not start again. Fortunately I was able to roll into a neighborhood and get off the main road with no issues. The dealer has confirmed the seized engine and a replacement engine has been ordered with no ETA. There was no prior warning of the failure, besides a shuddering, like I was running out of gas, and then a lose of complete power.

Reported

Mar 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2023 GMC Yukon XL. The contact stated that the vehicle was losing oil, and the engine was running rough. There was an abnormal burning odor after driving the vehicle. The vehicle received an oil change; however, two weeks later, the oil warning light illuminated. The vehicle was towed to the local dealer, where it was determined the oil level was approximately 2 quarts low, and another oil change was performed. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 70,000.

Reported

Mar 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

2023 Yukon XL Denali passed the pico scope changed to 0W40 and 3 months later stopped working in the middle of driving just completely shut down. Engine started to smoke had it towed to dealership and they removed my oil filter and found crankshaft bearings in the filter. Needs a new engine now. Bought it brand new only has 45,000 miles on it currently.

Reported

Mar 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

2023 GMC Yukon XL 6.2L V8 experienced progressive engine defects starting in first year. At 7,445 mi (Jan 2023), first dealer visit for engine issues. At 10,315 mi (Apr 2023), Cyl 2 fuel injector failed (internally open), vehicle TOWED to dealer, replaced under warranty. At 14,982 mi (Aug 2023), identical Cyl 7 injector failure (internally open), replaced under warranty. Two identical failures on different cylinders within 15,000 mi indicates systemic defect. By 30,409 mi (Aug 2024), dealer performed engine decarbonization due to carbon buildup from fuel injection issues. Dealer recommended additional decarbs at 38,077 mi and 42,577 mi. At 56,028 mi (Mar 2026), engine suffered catastrophic failure: piston ring failure causing excessive oil consumption and engine destruction, requiring full engine replacement. This matches GM's known 5.3L/6.2L V8 piston ring defect (subject of $150M class action settlement). Defective injectors caused incomplete combustion, carbon buildup on piston rings, ring tension loss, and catastrophic engine failure. Vehicle also has unfixed suspension defect (camber bolt/alignment). Vehicle visited dealer 8+ times. Engine failure poses serious safety risk from sudden power loss at highway speeds. Vehicle available for inspection.

Reported

Mar 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

High pressure fuel pump housing failed and filled the cabin with fumes. Rendered the the Yukon unsafe to drive with fuel flooding the engine compartment. Took the dealer 57 days to repair the car. No warning lights, only indication was the fumes in the cabin.

Reported

Mar 2026

Incident date

Dec 2025

Mileage

Not provided

Outcome flags

None reported

Transfercase was casuing the Yukon to serge when in auto mode. No codes warning lights were presented. The dealer did not find any codes but when the transfer case was removed the oil was drained to which metal shavings were found in the oil. After getting the Yukon back the transmission began to exibit the same type of issues. Currently the Yukon is back in the shop.

Reported

Mar 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

1.The driver side mirror tilts up or down every time the vehicle is started requiring readjustment before driving. My wife was almost hit by oncoming traffic when she did not remember to readjust the mirror before merging with traffic. 2. The driver seat bolster inflates every time the vehicle is started. The vehicle cannot be driven without deflating the bolster. These have been reported to the dealer 3 months ago with no resolution from them or GMC.

Reported

Mar 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

Complete engine failure on highway at speeds of 70. The vehicle was inspected per the recall on this engine and it passed inspection prior to purchasing. The vehicle now needs a complete engine replaced per local GMC dealer.

Reported

Mar 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

Drove vehicle to town and back, 20 mile round trip. When entering my property, the Engine stalled while pulling into driveway. Upon cranking, was very hard to start. When taking the next trip after engine stall, vehicle died in motion at 60mph approaching a traffic intersection with no warning, leaving very little time to navigate to the shoulder and off the roadway. Engine will not crank over, suspect Engine has failed again, currently at dealer awaiting diagnostics. No lights, warnings, noises or indications of Engine failure were observed during the drive cycle.

Reported

Mar 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

driving 70mph on highway when engine suddenly failed. engine turned off and kicked into neutral. had to pull over on busy highway in a powerless car and have car towed. it is now getting a full engine replacement at 42k miles.

Reported

Mar 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

My vehicle was one of the vehicles that was subject to the engine failure recall by GM. I took it to the dealership for the “repair“ where I was told the oil was changed to a different weight. Last night, I was driving down the road and all of a sudden my car just stopped. It still had power, but the engine had stopped. I tried to restart was unable to.

Reported

Mar 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

Rear wheel lock up It took two Dealership is going through it's diagnosis but says it needs new valve body upgrade. Been sitting in the shop for 2 months

Reported

Mar 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

1 injuries

i had taken care of the recall items in regards to the failing 6.2L engine. I was driving on the highway (going ~70mph) when all of a sudden the car kicked into neutral and the engine shut off. I was able to pull over, but the engine would not turn on. Electronics worked, but I think i had a total engine failure at 42k miles.

Reported

Mar 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

ON 2/22/2026 WE WERE DRIVING BACK FROM WEST, TEXAS ON FM 2311 WE WERE TRAVELING AT ABOUT 60 MPH POSTED SPEED LIMIT WHILE WE WERE ENTERING TH ECONSTURCTION ZONE THE VEHICLE SAID START THE CAR WE WERE DRIVING IN THEN I NOTICED WE LOST PROPULSION AND STEERING AND BRAKES WERE VERY DIFFICULT TO HANDLE MY WIFE AND 10 YEAR CHILD WERE IN THE VEHICLE WITH ME. THIS ROAD HAD NO SHOULDERS AND A VERY STEEP DEEP EMBANKMENT ON BOTH SIDES OF THE ROAD. VERY DANGEROUS SITUATION. WE WERE TRAPPED BETWEEN TWO HILLS WITH NO WAY TO STAY SAFE OR GET THE VEHICLE TO A SAFE SPOT TO KEEP TRAFFIC FROM HITTING US OR THE CAR WE HAD TO GO STAND DOWN THE BOTTOM OF THE EMBANKMENT TO TRY AND STAY SAFE AS BEST AS WE COULD. THE LEROY TEXAS VOLUENTEER FIRE DEPARTMENT CAME UP ON US AND WAS ABLE TO BLOCK TRAFFIC UNTIL THE CAR WAS TOWED TO OUR HOME THEN TO FREEDOM CHEVROLET IN FAITFIELD TEXAS ON2/23/2026 ON 2/23/2026 WE MADE A CLAIM WITH GM CLAIM#89328131 AND HAVE BEEN IGNORED BY THEM TOLD THEM A ENGONE REPLACEMENT DOES NOT FIX THE SAFTEY ISSUE PERMANTLY SO I AM REPSPECTFULLY REJECTING THE REPAIR TOLD DEALER NOT TO FIX. WE HAD A RECALL DONE ON 11/17/2025 FOR THIS ISSUE AND IT FAILED US WE COULD HAVE BEEN KILLED OR SEROIOUSLY INJURED. THIS IS A MASSIVE SAFTEY ISSUE WE EVEN ASKED GM FOR A BUY BACK OR A SWAP AND WE CALLED TODAY ON 2/27/2026 AND GM TOLD US JOHN WHOEVER THAT IS WOULD CALL US BACK NEVER CALLED US. GM EVEN ACTED LIKE THEY COULD NOT FIND THE CLAIM NUMBER WHEN I HAVE AN EMAIL ABOUT IT. i AM NOW VERY WORRIED THAT GM WILL TRY TO ERASE ALL THE DATA FROM THE VEHICLE RECORDING DEVICE AKA BLACK BOX. GM MUST BE HELD ACCOUNTABLE I OWN 3 GM VEHICLES WORTH A TOTAL OF ALMOST 300K ALL HAVE A MAJOR SAFTEY RECALL .

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

Engine issue crankshaft problem

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

my engine was part of L87 engine GMC Yukon Xl 2023 recall, they checked the car at 41,000Miles in aug-sept 2025, then they suggested different oil to be used, they changed the oil and thats it, 5000 miles later my engine died on the high way, it shut off and car seized and shut off on the highway and did not move. I towed it to the GMC dealership, they confirmed the engine is seized, but they have been very secretive, they did not tell me whats wrong, they been some what ignoring me, I dont have a car its been few days, no one reached out to tell me whats happening, no offer to give me a loaner, when I kept bugging me they said we're opening the enigne to send the broken part inside to the GMC headquarters, I asked to know what's the issue what's happening but I'm worried they will do another short cut, I need your help on what to do next

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

Transmission surging. Transmission stays in one gear.

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

Onstar connectivity module failed after dealer updates. The onstar module controls super cruise hands free driving. Module can fail during use causing accident. Vehicle did not display any warning on display screen. Vehicle is available for inspection. GMC dealer confirmed onstar module failure and is waiting on part delivery for replacement. Several searches in online forums confirm this is an issue for thousands of GMC vehicles.

Reported

Feb 2026

Incident date

Dec 2025

Mileage

Not provided

Outcome flags

None reported

I was on the interstate and when I was passing a vehicle in the middle lane the engine lost power, shifted to N. I tried going back to drive it would not shift. Stopped the suv and tried restarting it. When I pushed on the brake and tried to start it the whole vehicle would loose power to all my screens. I had this vehicle towed in back in September 2025 due to not cranking over when starting. They did the recall for the engine at that time. The engine light would randomly turn on but would go back off within the same day.

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

2023 Yukon Denali XL 6.2l: GM oil change recall performed (October 2025) and GMC dealership noted no issues. Prior to recall oil change, at aprox 5k miles interval (45K total miles), check engine oil light on dash and was over 1 quart low. Next oil change at aprox 50K miles, no check engine light came on, but certified mechanic drained and measure oil level, 1.5 quarts low. Engine often sounds odd at cold start, ticking sound. Now an oil change is $100 more, due to special oil, but not compensated for extra cost. Brake calibers failed. February 2026, engine light on, then off, then hood latch dash light warning now on and off. Huge safety concerns with the 2023 GMC Yukon 6.2L.

Reported

Feb 2026

Incident date

Oct 2025

Mileage

Not provided

Outcome flags

None reported

POST-RECALL 25V274 ( & EA25007, EA25001) EXHAUST INTRUSION WITH CARBON MONOXIDE POISONING HAZARD Following the complete engine replacement under GM recall N252494000, my vehicle has developed a severe and persistent exhaust intrusion that allows toxic exhaust fumes, including carbon monoxide (CO), to enter the passenger cabin. CO levels have measured a peak of 83 PPM and consistent reading between 20-37 over multiple tests. PATTERN OF POST-RECALL EXHAUST SYSTEM FAILURES Vehicle has been in for service 6 times, over 100 days, as part of the engine replacement plus (metal found in the oil pan). Since recall, the vehicle has had an exhaust smell and noise rattle issue with the following exhaust system components deemed failed and been replaced: 1. Radiator cap (leaking onto exhaust) 2. Exhaust muffler (replaced TWICE - June 2025 and August 2025) 3. Exhaust clamps (leaking) 4. Left exhaust manifold (warped) Critical Finding: Despite replacement of virtually the entire exhaust system, the defect persists. This suggests a fundamental design or installation defect related to the engine replacement procedure, NOT isolated component failures. Documented Carbon Monoxide Levels: Between January 30 and February 3, 2026, I conducted 15+ tests using a professional-grade Klein Tools ET180 Carbon Monoxide Meter. Results: • Peak reading: 83 PPM • Multiple readings: 40-72 PPM sustained for 6+ minutes directly at my [XXX] daughter's car seat position • Testing method: Vehicle started via remote start, CO meter placed in cabin, readings recorded over 10-15 minute periods Health Impacts to Family: • Wife and [XXX] daughter consistently experience dizziness, headaches, and nausea when riding in vehicle • Daughter now refuses to ride in vehicle because it makes her feel sick • Symptoms consistent with carbon monoxide poisoning Independent service station verification on January 30th confirmed "vehicle is dangerous to operate with children inside and needs immediate service." INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Feb 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

6 injuries

On 12/22/2025 I took my 2023 GMC Yukon in for the L87 recall. After receiving information that my vehicle passed the recall they told me that the oil would be change to from OW-20 to OW-40 and that my oil changes would go up in price (double the price) due to the oil being a high performance oil. On 01/05/26 exactly two weeks and 616 miles later our engine and lights completely stopped working while driving it on the road!!! The vehicle would not start or switch into neutral so we could get the vehicle off the road due to blocking traffic! The vehicle was towed the GMC dealership and had to have a new engine replacement. We were out of our vehicle for 31 days. Now our vehicle rear view camera guidelines have stopped working and now have to put that under warranty claim.

Reported

Feb 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

On two separate occasions, while driving at approximately 60 mph on New York parkways, my vehicle unexpectedly shifted into neutral and lost power without warning. During the first incident, a message appeared instructing me to “press start to continue.” I was able to restart the vehicle and drive home. Two days later, the same failure occurred again under similar conditions. This time, after pulling over and pressing the start button, the vehicle shut off completely and became totally inoperable. The vehicle had no power and would not restart. At the time of this second incident: - I had my [XXX] child in the vehicle - The outside temperature was approximately 20 degrees - Recent snow made it difficult to pull fully off the parkway - Police assistance was required to ensure our safety - We waited nearly two hours for a tow truck due to the hazardous roadside conditions This situation was frightening, dangerous, and completely unacceptable in a modern vehicle with approximately 24,000 miles. When GMC evaluated the vehicle the following day, I was informed that it requires a full engine replacement. A catastrophic engine failure at this mileage — combined with repeated, sudden loss of power at highway speeds — represents a serious safety defect that substantially impairs the use, value, and safety of the vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

I am reporting a catastrophic engine failure involving my 2023 GMC Yukon XL Denali, which was subject to a GM-issued recall related to engine failure. On January 10, 2026, at approximately 1:00 a.m., while traveling at highway speed (approximately 65+ mph) on a multi-lane highway, the engine suddenly failed without warning, resulting in a complete loss of power. I was forced to make immediate evasive maneuvers to reach the shoulder while avoiding semi-trucks and other vehicles. The sudden loss of power created an extremely dangerous situation for myself, my passengers, and surrounding traffic. After the engine failure, the vehicle could not be placed into neutral, preventing it from being moved out of traffic if it had stopped in an active lane. This design issue significantly increased the risk of a collision. I was stranded on the roadside for several hours in cold conditions awaiting a tow. The failure was later confirmed by an authorized GMC dealer, who diagnosed the engine as failed and replaced the entire engine assembly. The vehicle and replaced components should be available for inspection through the dealership. The manufacturer had previously issued a recall for this vehicle related to engine failure, and I had requested a buyback prior to this incident due to safety concerns. That request was denied unless the vehicle experienced a failure. There were no warning lamps, messages, or symptoms prior to the failure. The only warning message appeared after the engine failed, indicating an engine overheating or “engine hot” condition, which occurred after power was already lost. This incident represents a serious safety defect that resulted in loss of propulsion at highway speed with no advance warning.

Reported

Feb 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

Following a catastrophic engine failure in my 2023 GMC Yukon XL Denali, I discovered that the vehicle could not be shifted into neutral once the engine failed. This prevented the vehicle from being moved out of traffic if it had stopped in an active lane. The inability to place the vehicle into neutral after a loss-of-power event creates a serious safety hazard, particularly on high-speed roadways. In the event of a failure occurring in traffic, occupants may be left stranded in a travel lane with no ability to push or reposition the vehicle, significantly increasing the risk of a rear-end or multi-vehicle collision. This condition occurred immediately following the engine failure and was not accompanied by any prior warning or instructions to allow safe vehicle repositioning. I am unaware of any manual or mechanical override that would allow the vehicle to be shifted into neutral under these conditions. This design behavior represents a safety defect because it compounds the danger of a propulsion loss by preventing drivers from removing the vehicle from harm’s way.

Reported

Feb 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

Vehicle was taken to dealership and test was run. Service manager notified me it passed and told us about change of oil. Then recently engine stopped on us twice on the interstate with no power. We finally got it to the dealer and while they were test driving it lost power and they had to have it towed. Now we have been told we are needing a new engine and have not been given any time line. We have also read that many time the solution even on the new engine is not fixing all issues. We just want a safe vehicle returned to us.

Reported

Feb 2026

Incident date

Dec 2025

Mileage

Not provided

Outcome flags

None reported

Catastrophic brake system failure. When leaving my home in Baltimore County, MD, at approx. 10:00am on February 3rd, my vehicle started up normally. As I descended down a hill in our neighborhood the brake system failed and the vehicle would not stop. By standing on the brake pedal I slowed enough to put the vehicle in park as I entered an intersection with the main road. I have since learned this is the 3rd GMC Yukon (years 2023-2024) that has had the same brake failure in 24 hours in our community.

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

On January 19, 2026, Recall 25V274 was performed on my vehicle, and this was not disclosed to me when I picked up the vehicle from the dealership, Courtesy Buick GMC in Louisville, KY. I only found out when I got home and read through all the service notes. I contacted the dealer on January 19 after I got home, asking for explanation and have not heard back. The Recall Remedy failed. Since the service, symptoms of hesitation, lack of propulsion and low MPG persisted. As of Feb 1, the vehicle has suffered a transmission failure and is unsafe. The dealer told me verbally everything was fine, and in the service notes from Jan 19, they noted vehicle as 'Operating as Designed and Within Spec' despite performing safety recall work."

Reported

Feb 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

We had the L87 engine recall completed at 14,318 miles on Nov 20, 2025 on our 2023 Yukon XL Denali with the 6.2L engine. Engine passed all tests by dealer and we were sent on our way with 0W-40 and a new oil cap. Fast forward to Jan 21, 2026.... My wife pulled the vehicle out of driveway and noticed a deep pitched, knocking sound. She slowly started to drive down the street a bit and then the vehicle shut off and displayed a warning message on the dash (this was on a cold engine, not due to the absurd auto start/stop feature). She was able to restart and get vehicle back to the garage. We had just rolled 15,000 miles on the odometer the day before. Immediately called our dealer and had an appointment set for the next day. We were able to drive vehicle to dealer with knocking and reduced power during the drive. Dealer confirmed next day that an excessive amount of metal was found in oil and on oil filter element then supplied us with video evidence. A complete teardown has been ordered but no cause has yet been identified as of Jan 29, 2026. Service tech stated as we walked back into the dealer that "you are getting a new engine based on the amount of metal found in the oil sample". I asked about timeline for engine replacement and was told that we are looking at a month if not longer until we will get the vehicle back. We know that we are VERY fortunate to not have had the engine shutdown happen on a highway as my wife would have most certainly panicked in the situation possibly leading to a catastrophic event.

Reported

Jan 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

The vehicle was running perfectly fine. We pulled into a service station to fill up the gas tank, and suddenly it wouldn’t start at all. We had no choice but to have it towed to McKenzie GMC in Milton, Florida. After several days of waiting, we were told we now “need another engine.” Yes—another engine. This is completely unacceptable. This same vehicle already had its engine replaced in 2025 under recall 25V274000. It passed the PICO test, and the oil was changed to the updated 0W‑40 viscosity exactly as required. There is absolutely no reason a vehicle with a recently replaced, recall‑compliant engine should be failing like this. Something is seriously wrong with this vehicle, and it needs to be addressed immediately. [XXX] 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

There have been several issues for which I had to take my vehicle to the dealer. I did the engine oil recall. Then 4 months later my engine was destroyed. I’ve had several issues with oil leaks. I had an issue with my running boards a few times. And I’ve had an ongoing issue that the dealer hasn’t been able to fix - a water leak (I believe stemming from the moonroof), water gets into my vehicle, on my floorboard, and behind the dash. I’ve called to record these incidents with the dealer and taken it in several times, but they are never able to duplicate it, but they have witnessed the water leakage after the incidents (which happens during heavy downpours, and isn’t all the time because my vehicle is in the garage when I’m not at work).

Reported

Jan 2026

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

My family and I received a recall notice from GM. We took the vehicle in promptly and had it "repaired" by an authorized dealer. They replaced the oil cap and placed a sticker in our owner's manual. This Christmas, instead of going to Angel Fire, New Mexico, like we do every year to visit family, we stayed home in the Rio Grande Valley. On December 28, 2025, my family decided to go holiday shopping. With kids home from college, and others off from school, I packed my wife and kids (there are six of us) into our 2023 Yukon XL to go shopping. I was driving down a busy 3 lane road with a 55 mph speed limit. By the Grace of God, I had just turned from the center lane to the right (outer) lane when our Yukon lost ALL POWER and the display read something like "Press Start/Ignition." I was utterly confused because I didn't understand what was happening. The accelerator would not work. My college daughter who was in the back asked "Dad, why did you put it in neutral?" I had not, in fact, put the vehicle in neutral. Scared with the passing traffic and sudden slowing of our Yukon, I had not realized that the vehicle had put me in neutral somehow. I tried to shift or click into the drive, but the vehicle would not respond. At some point my wife started yelling "Memo, GET OVER, GET OVER!!" I was able to coast just into the entrance of a gas station. We waited for a towing company to pick us up. Since the episode, we have now learned about this happening to other people. I can't believe that GM is letting this happen to people. We brought our vehicle in as instructed! We trusted that their "test" showed that our engine was fine. We trusted their alleged fix. I'm still in disbelief that the event occurred. I'm a grown man, and I was frightened when this occurred. I'm thankful to the Lord that one of my kids had not been driving the vehicle, or that we had been on our yearly trip to Angel Fire. Please, please, do your best to ensure that this stops happening to families.

Reported

Jan 2026

Incident date

Dec 2025

Mileage

Not provided

Outcome flags

None reported

Good afternoon, My 2023 GMC Yukon XL AT4 with the 6.2L L87 engine (approx. 61,000 miles) suffered a sudden and complete engine failure at highway speed while I was driving between Canton, OH, and Columbus, OH, on the expressway, returning to my home in Cincinnati. There was no warning before the engine lost all power and propulsion. I was traveling in the left lane of the interstate in moderately heavy traffic. When the engine shut down, I only had steering and braking available to me. In addition to losing all propulsion, I also lost all electronics, and there was no shoulder. The complete dashboard shut down. The only reason there was not a collision was that the traffic around me could see what was happening and slowed down themselves. I coasted on through the onramp and found a shoulder where I had three lanes of traffic on my left and two lanes on my right. Less than two months before this incident, the vehicle had been inspected and serviced by an authorized GM dealer, and no engine issues were identified. I was given no indication that the engine was at elevated risk of failure. After the breakdown, GM and the dealer determined that the failure falls under GM Safety Recall N252494002 / NHTSA Campaign 25V274000, which involves internal engine defects in the 6.2L L87 that can cause a loss of propulsion in certain GM trucks and full‑size SUVs widely used as family vehicles. GM is replacing the engine, extending the warranty, and providing a loaner, but this does not change the fact that my family was exposed to a serious safety risk, nor does it address the possibility that other owners may experience sudden loss of propulsion even after their engines “pass” dealer inspection. I am submitting this complaint so NHTSA is aware that a recalled 6.2L L87 engine, inspected shortly beforehand, still failed without warning at highway speed in a primary family‑hauler vehicle, creating a dangerous situation. Regards, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Jan 2026

Incident date

Dec 2025

Mileage

Not provided

Outcome flags

None reported

The engine experienced a catastrophic mechanical failure after the vehicle had been inspected by the manufacturer and certified as compliant with an engine recall. The failure occurred after the recall remedy/inspection was completed. The engine lost functionality while the vehicle was in use, resulting in loss of propulsion and the vehicle becoming disabled, requiring towing. The engine is currently available for inspection and is awaiting major powertrain repair at an authorized dealership. The sudden engine failure created a safety risk due to unexpected loss of power while driving. No collision occurred. The issue has been confirmed by an authorized dealership. The vehicle had previously been inspected by the manufacturer as part of the recall process prior to the failure. Prior to the failure, there were no known warning lamps or messages indicating an imminent catastrophic failure. The failure occurred after the vehicle had passed the recall inspection. This appears to be a post-recall remedy failure. I am concerned that the recall inspection did not adequately prevent the known defect, as the engine failed after being certified as compliant.

Reported

Jan 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

I am writing to formally file a complaint regarding a serious and ongoing issue with my vehicle that has placed my safety at risk and resulted in significant inconvenience and financial burden due to General Motors’ failure to honor my warranty in a timely manner. While driving on the highway, my vehicle suddenly began losing power and displayed flashing warning messages indicating that it would not shift into gear or out of gear and that power could be lost. This created an extremely dangerous driving situation and posed a serious safety risk to me and other motorists. I brought the vehicle in for warranty service, but General Motors was unable to honor the warranty repair in a timely manner. As a result, I was without my vehicle for several months while it sat undrivable on the dealership lot. Once the vehicle was finally repaired and returned to me, the exact same transmission-related incident occurred again. Once again, I was left without the vehicle for an additional period of days. This repeat failure has severely shaken my confidence in the reliability and safety of the vehicle. When I picked up the vehicle after the subsequent repair, I was informed by a General Motors technician that the brakes and rotors were most likely pitted and damaged and would need repair or replacement because the vehicle had been sitting undrivable for such an extended period of time. I was explicitly told this damage was expected due to the prolonged inactivity caused by the unresolved warranty issue. It is critical to stress that the vehicle only sat undrivable for such a long period of time as a direct result of General Motors’ inability to honor the warranty in a timely manner. Despite this, I am now being told that the brake and rotor damage is considered a “maintenance issue,” even though a General Motors technician directly advised me that this damage would occur as a consequence of the vehicle sitting for months due to warranty delay

Reported

Dec 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

Engine oil level drops significantly well before the oil change interval. Vehicle consumes excessive oil without warning lights or leaks. Risk of engine damage or failure if oil level is not closely monitored. Condition discovered during normal use.

Reported

Dec 2025

Incident date

Jun 2024

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 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The daytime running lights (DRLs) may not deactivate when the headlights are on. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

Risk: DRLs that do not deactivate as intended may result in a glare, reducing visibility, and increasing the risk of a crash.

Remedy: The body control module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed January 23, 2023. Owners may contact GMC customer service at 1-888-988-7267, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N222386380. This recall expands previous recall number 22V-827.

General Motors, LLC (GM) is recalling certain 2023 Cadillac Escalade, Escalade ESV, Chevrolet Suburban, Chevrolet Tahoe, GMC Yukon, and Yukon XL vehicles. The rear suspension outer control arm bolts may not have been properly heat-treated, which can cause the bolts to break.

Risk: A broken suspension bolt can result in misalignment of the rear wheel, increasing the risk of a crash.

Remedy: Dealers will replace both rear suspension outer control arm bolts, free of charge. Owner notification letters were mailed November 14, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; and GMC customer service at 1-800-462-8782. GM's number for this recall is N232415910.

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.