Table 1 shows one common other fuel system related problems of the 2023 GMC Yukon.
| Problem Category | Number of Problems |
|---|---|
| Other Fuel System problems |
I was traveling with my family on the ohio turnpike. We were traveling west in our 2023 GMC Yukon denali when we lost all propulsion and the engine seized. There was no warning lights or other symptoms prior to this incident on may 3, 2026. In fact, I had the vehicle in for the prescribed recall to test the engine for the known defect earlier in 2026. The vehicle passed that test and was given the upgraded oil change to presumably prevent the engine failure in the future. It did not work. Our safety and others on the turnpike were at risk while we were traveling at highway rates of speed with sudden loss of all propulsion. The vehicle was towed that evening to local gm dealer - yark chevy in [xxx] . Upon inspection on may 5, 2026, the dealership informed me the engine had seized and would be replaced by gm. They were unable to provide a timeline for this repair. I have the tow expense of $260. 70 and now the uncertainty of when I might have a vehicle back. The safety of my family and all others traveling the ohio turnpike that date were at significant risk. The vehicle remains at yark chevy in perrysburg, ohio available for inspection upon request. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
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.
My 2023 GMC Yukon denali with the 6. 2l v8 suffered a sudden loss of propulsion while traveling at approximately 70–75 mph on the highway with my wife and young daughter in the vehicle. The engine rpm dropped immediately to zero and the vehicle displayed a message instructing me to press start. I do not recall any meaningful prior warning lamps or symptoms before the failure. I did not hear a loud bang or other dramatic engine noise; the vehicle simply lost power and would not continue driving under engine power. I had to coast across lanes/shoulder to a stop, which created a serious safety risk to my family and other drivers because the vehicle lost propulsion at freeway speed without warning. After stopping, the vehicle would not restart. Pressing the start button produced only a click from under the hood and the engine would not crank. The vehicle was towed to a GMC dealership in victorville, California. The dealer has since confirmed that the engine requires full replacement. The failure has therefore been confirmed by an authorized GMC dealer and the vehicle should be available for inspection through that dealership/manufacturer if requested. This is especially concerning because this vehicle was already part of the known gm 6. 2l recall population and had supposedly passed the recall inspection/remedy before I purchased it. Despite that, the engine still failed catastrophically only about 1,355 miles into my ownership. Purchase mileage was approximately 26,343 and failure occurred at approximately 27,698 miles. Based on what the dealer told me, the failed component/system is the engine assembly.
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.
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.
2023 Yukon denali has now broken down twice, leaving myself and my family (husband and children). This last time was on Friday 1/16/26 while we were out of town, the car began malfunction and then we had complete engine failure while drive 70mph down the highway, again, leaving my family stranded on the side of the road, on a busy highway, in an unsafe environment in the winter.
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.
Engine failed 1400 miles from home on 6. 2l engine - days after getting l87 engine loss of propulsion recall service. Recall service completed on 12/1/2025 - cap and oil change done - full engine failure on 12/22/2025. 12/1/2025 - l87 engine recall service done at GMC dealership - quincy IL 12/16/2025- check engine light came on - went to same dealership - cleared it told me I was fine to drive across country 12/22/2025 - full engine failure on GMC Yukon denali.
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(.
It has been several months since recall on l87 was issued. My truck now has over 44k miles and I’ve contacted the dealer, they note there’s no fix in sight. I’ve been having some issues with engine sluggishness on acceleration at times and I’m concerned this is related to the recall. I’m now stuck with this potentially dangerous vehicle with no fix, and am concerned. I also can’t get a fiar trade in value due to open recall. Overall, I’m stuck with a defective vehicle that gm refuses to address.
Driving on the highway and the engine completely shut down. The car was automatically placed into neutral and I coasted off the highway to a nearby gas station. The car was taken to the dealer, and they confirmed that it requires a brand new engine.
Vehicle surged, lost all power while driving, switched to neutral and would not restart.
Vehicle was traveling on interstate and lost power/propulsion and automatically shifted to neutral. Grave danger for eminent death/injury as a result of possible accident.
There is a safety recall but it has not yet been resolved, risking lives.
I own a 2023 GMC Yukon denali xl (VIN: [xxx] ) currently under active recall for the l87 6. 2l engine. Gm has no remedy available and has acknowledged a risk of complete engine failure and loss of propulsion, which could occur without warning. This is the primary vehicle I have for transporting my family of seven, including a toddler. I am significantly upside down on the loan, and the dealership cannot guarantee it is safe to drive. I am requesting that NHTSA escalate the urgency and hold the manufacturer accountable for timely resolution or replacement. ” information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
While driving at approximately 30 mph in moderate traffic on the interstate during a return leg of a 370-mile trip, my vehicle unexpectedly shifted into neutral and became unresponsive. The dashboard displayed the warning message: "condition not correct for shift," and despite repeated attempts to restart the engine, the vehicle would not engage. Although the electrical system remained active, I had no propulsion. Critically, the vehicle became immobilized in a **very dangerous curve on the interstate**, presenting an extreme safety risk to myself and others. The car could not be manually shifted into neutral for towing, prompting illinois department of transportation (idot) to declare the location unsafe. I was stranded there for over three hours, after dark, in a vulnerable and exposed position. During the forced tow process, two rear tires were destroyed and the two front tires sustained major damage. In the days leading up to this incident, the vehicle had also shown signs of malfunction, such as delayed acceleration from a stop and occasional lurching forward — symptoms consistent with the defect described in the recall.
I am formally requesting a complete refund for my vehicle. It has only 6,300 miles, and the remedy provided for the recall does not adequately address the issue. The recall explicitly indicates defects in the engine components (rods/cam shafts) that may lead to a loss of propulsion. Merely inspecting the vehicle and adding thicker oil does not resolve the underlying problem; it only postpones the inevitable expiration of my warranty. Currently, there are no warning lights illuminated, as the vehicle is not driven frequently. The recall raises significant concerns, and gm should be taking more substantial measures than simply applying thicker oil as a solution. This approach feels like a temporary fix rather than a genuine resolution. I have communicated with the dealership, and have been informed there is currently no solution available for this matter. They are awaiting further instructions on how to proceed. I request a more thorough investigation into this issue for an appropriate refund, and I also wish to have this matter documented for future reference.
Recall for engine propulsion. Say that there is no remedy yet. I have read the warnings about what may happen and I am terrified to drive the vehicle. Gm says to contact the dealer, dealer says to contact gm. No one wants to take initiative. If they cannot fix the car, they should buy the car go back so I can get something different. I have been driving an old car around because I’m am afraid of this one. Please help me.
My engine failed while I was driving & I had no warning. It was very scary & dangerous. Luckily I was in an area where I could get off the road quickly. It started skipping then lost power. I basically coasted off the road & had to call for help. It was making a bad knocking noise. This happened 2 weeks ago on April 16. It has been sitting at glynn smith. GMC dealership since. I was told by the service manager that the engine failed & I will need a new engine. The engines are on back order now. I fear they will replace it with the same problem. I see the recall this week but will changing the oil viscosity really fix it?? doubtful. Someone is going to get killed or hurt from this problem. I do not want the same issue to happen with a new engine.
I am writing to express serious safety concerns regarding our 2023 GMC Yukon xl denali, which has been in our possession for less than two years and has only 24,000 miles. On multiple occasions, while driving at high speeds on the freeway with our four young children, the vehicle unexpectedly lost power and shifted into neutral without warning. This occurred approximately four times on March 9, 2025, when we contacted onstar for assistance. Despite their response indicating no alerts on their end, we were advised to reach out again if the issue persisted. Unfortunately, the problem did occur again on March 16th, which prompted us to contact onstar and have the vehicle towed to the nearest dealership for further evaluation. The service department has since informed us that the motor requires replacement. Upon conducting additional research, it seems this may be a known issue with many vehicles manufactured by gm around the same time. We are deeply concerned by this safety hazard, especially given that the malfunction could have led to a life-threatening accident. While we are grateful that we were fortunate enough to avoid any serious consequences, we believe a solution beyond standard repairs is necessary to restore our confidence in the safety of this vehicle. Our family’s well-being and trust in the reliability of our vehicle are of the utmost importance.
Our 2023 GMC Yukon xl denali that has suffered multiple severe mechanical failures well beyond what is reasonable for a vehicle of this class. G at approximately 14,000 miles, the vehicle’s 6. 2l engine catastrophically failed, rendering it inoperable and requiring a full engine replacement. The engine seized and failed while operating the vehicle with her 3 small children on board and nearly caused a catastrophic accident. As a result, the vehicle was out of service for eight weeks, an unreasonable disruption and an unacceptable failure for a luxury SUV of this caliber. Now, (02/11/2025) at just 20,400 miles, the vehicle’s injectors have failed, further reinforcing that this vehicle is defective, unreliable, and unfit for continued ownership. This vehicle was purchased with the expectation of owning a dependable, high-performance SUV—not one plagued with major mechanical failures at such low mileage. The repeated, severe defects have substantially impaired the vehicle’s use, value, and safety, leaving use without reliable transportation for extended periods. Given these circumstances, it is clear that this vehicle does not meet the quality and durability standards expected from general motors’ flagship SUV lineup and present serious risks of catastrophic injuries and/or death.
I’ve inserted the question and their answer: what component or system failed or malfunctioned, and is it available for inspection upon request? lifter valve number six failed causing it to shatter and send pieces of it throughout the engine along with other debris into the cylinders. How was your safety or the safety of others put at risk? vehicle had loud engine knock, pulsation of power, had to pull off on main highways due to loss of power over 400 miles away from home. Has the problem been reproduced or confirmed by a dealer or independent service center? yes, engine was serviced by gm dealership in baldwinsville, NY for over $8,500. Will attach copy of bill. Now is doing same thing, again. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? gm as stated above. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? check engine light flashed, traction control light came on.
Driving at 70 mph, the vehicle shifted into neutral without warning. When attempting to place the vehicle back into drive, the vehicle dashboard siad "vehicle condition not met" . I slowed the car and pulled over. It shifted into park but now will not start and will not go into neutral for towing.
Vehicle shuts off and goes into neutral at highway speeds I am reaching out because it has happened to me three times in a seven month old vehicle and also five family members with Yukon tahoe, escalade same issue is very very dangerous please, I beg you take this very seriously and contact me so I could verify to you the other owners that I’ve had the same issue, but have not went far enough to make a complaint. I will prove it to you with other owners, same problem, where the vehicle just shuts off.
The contact owns a 2023 GMC Yukon. The contact stated while the vehicle was parked, the vehicle shuddered. The "service traction control" and the "forward collision system unavailable" message was displayed on the instrument panel. The check engine warning light was illuminated. The failure occurred on several different occasions. The vehicle was taken to a dealer where it was diagnosed that the fuel injector needed to be replaced. The vehicle was repaired however, over time the failure still persisted. The vehicle was taken back to the dealer where it was diagnosed once again that the fuel injector needed to be replaced. The vehicle was repaired however, over time the failure still persisted. The vehicle was taken back to the dealer for the last time where it was diagnosed once again that the fuel injector needed to be replaced. The vehicle was repaired however, over time the failure still persisted. The manufacturer was notified of the failure. The failure mileage was unknown. .