general problems of the 2023 GMC Yukon - part 1

This is an ongoing problem from date of purchase, before the normal oil change time the low oil light comes on. When I check the oil dip stick it is in fact low. I have to add at least 2 qts of oil to get it to the right level. Time frame would be at least once every 2 months under normal CA driving conditions. Also does have a rough idle and noise that sounds like the motor is going to come apart on startup. I have takin it to the dealer, they performed consumption test and checked the motor recall. The dealer told us that our motor passed the recall inspection, made the changes, oil, oil cap, etc. Then told us it passed the consumption test. Since then I still have to add oil between oil changes. We were told by the service tech that even if the motor is bad, there is no replacements at this time and the vehicle would just sit at our dealership until we can get a replacement. No one has been hurt at this time. I'm just waiting for the motor to lock up. The vehicle can be inspected upon request. The only warning light that comes on is the low engine oil warning.

Heard a ticking sound whenever I was driving down the street then all of the sudden it got louder & SUV suddenly put itself into neutral. I was barely able to pull onto side of road to try and switch gears when hazard lights went on by themselves. Car wouldn’t turn on or start and whenever I tried again the check engine light appeared. Got the SUV towed to local, nearest GMC dealership who just called and said it was the engine failure and needed to be replaced.

Vehicle passed the recall inspection and service information was updated to reflect new engine oil viscosity requirements. Now just a few months later we experienced an issue and are told the engine needs replaced as part of the l87 recall. All service and oil changes have been completed by the dealership. This fits under the ea26005 investigation into post-recall failures. Vehicle is currently at freeman GMC awaiting a replacement engine.

My vehicle was subject to the gm recall involving the 6. 2l l87 engine. The dealer completed the required recall inspection, determined that the engine passed, and performed the prescribed remedy for passing vehicles, which included changing to the specified higher-viscosity oil. After the recall inspection and remedy were completed, the engine subsequently failed. While driving on an interstate at approximately 70 mph, the engine failed without any prior warning lamps, messages, or noticeable symptoms. There was an audible warning tone and the instrument cluster displayed a message instructing me to restart the vehicle. I then noticed that the vehicle was in neutral and the engine showed no rpms or response when the accelerator was pressed. Pressing the start button did not restart the engine. When I attempted to select drive, the vehicle displayed a warning indicating that conditions were not sufficient to change gears. The sudden loss of engine power and propulsion while traveling at approximately 70 mph on an interstate created a significant safety risk to myself, vehicle occupants, and others on the interstate. The vehicle could no longer maintain speed with surrounding highway traffic and had to be navigated to a safe location without engine power. The vehicle was towed to the local gm dealer who diagnosed the vehicle with engine failure, stating the engine was seized and the oil filter was full of shredded metal. The vehicle is currently with the gm dealer waiting a replacement engine. I am reporting this incident because the engine failure occurred despite the vehicle passing gm’s recall inspection and receiving the recommended remedy. This raises concern that the recall inspection and/or remedy may not adequately identify or prevent engine failures. The potential inadequacy of the recall remedy is especially concerning from a safety standpoint.

Engine seized up on the highway after recall was performed. I nearly avoided a wrecked getting it off the road. I had to wait over 5 hours for gm to tow me then ended up having it towed myself. Now the car is at the dealership with backordered parts, they agreedto pay for the tow now it seems to be an issue that I paid the to trcuk driver cash, & parts have no ship date. Gm customer servive agents are rude & do not seem to Ave any sence of care in the world about anything.

My vehicle was with ancira GMC boerne for approximately three weeks where they replaced the transmission control system/module, the centralized onstar module, and diagnosed both rear screens for replacement. Approximately one month after getting it back, at only 49,800 miles, I experienced a complete loss of propulsion. The vehicle shut down while I was driving. Given the recent transmission repair and the fact that this failure occurred while the vehicle was in motion, I no longer have confidence in the safety or reliability of this vehicle. I have young children riding in this vehicle daily and I’m not comfortable accepting another repair and simply being told it’s safe to drive.

After engine passed check for possible replacement because of recall, engine failed 5000 miles after. Even though I have a new engine now, there is no warranty coverage other than the lower part of the engine. I am already having misfire issues.

Pico scope test #fdyz295894391 on engine for recall #n252494003 engine , passed test. Drain oil filled with 0-40 replaced oil cap. Date 09/19/2025, mileage in 20142/mileage out 20142. Vehicle runs rough. Not stable at times. Vibration noise coming from the motor at times.

I got a Yukon at4 and I had to replace it for the one with this VIN number [xxx], the first one had a problem with the engine and the offer me to change it for a new one and accept it but since then it has given me problems, at first it was a small pull that felt, then an engine problem, that they "fix" and I have to come back because the " pull " still existed, they fixed it, and after around 3 months after, I had a an engine light one , collision light on, and esc light one, took it to the dealer and it was something related with the engine again. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Engine shut off with no warning, all electronics disabled and couldn't shift out of park. Was driving down the road at approximately 50mph, Yukon shifted itself into neutral. Vehicle previously complied with the 25v-274 recall and passed, was operating on the new oil that gm recommended.

On August 22, 2026, I was driving my 2023 GMC Yukon denali with the 6. 2l v8 at highway speed when the vehicle began struggling to maintain power while climbing a hill. The engine then developed a noticeable knocking sound. Shortly afterward, the engine shut off completely while the vehicle was moving, causing a sudden loss of propulsion. I was able to bring the vehicle to a stop, but the engine would not restart. The electronic transmission also would not shift into neutral and displayed a message indicating that the conditions required to shift were not met. Because the vehicle could not be shifted out of park, the towing company had difficulty loading and unloading the vehicle. The failure occurred during normal highway driving and created a significant safety concern because the engine shut down without warning while the vehicle was in motion. I am aware of NHTSA recall 25v-274 / gm recall n252494000 involving certain gm vehicles equipped with the 6. 2l l87 engine, as well as NHTSA engineering analysis ea25-007 concerning engine failures and loss of propulsion. At the time of this complaint, the dealership has not yet confirmed the specific mechanical cause of my vehicle’s failure. The vehicle is being taken to an authorized GMC dealership for diagnosis. I am submitting this complaint because of the sudden engine failure and loss of propulsion while traveling on a highway.

The check-engine light first appeared at approximately 42,000 miles. I dropped the vehicle off at the dealership on August 22 and picked it up on September 1. Within two miles of leaving the dealership, the check-engine light came right back on. The dealership initially diagnosed the problem as a lifter and wiring-harness failure. They later determined that the #7 oil-lifter solenoid had an internal short, and the wiring harness was replaced because of damage related to that short. What I still don’t have is an answer to the most important question: what actually caused the failure? based on everything I’ve read about the problems surrounding gm’s 6. 2l engines, I’m concerned this is only the beginning. These are extremely expensive vehicles—with monthly payments that can rival a mortgage—and owners shouldn’t have to wonder whether the engine is going to become an ongoing problem at 42,000 miles. Extending the warranty is helpful, but it doesn’t address the underlying issue or restore confidence in the vehicle. If these 6. 2l engines have a known systemic defect, gm should be required to provide a permanent solution—whether that means replacing the affected engines or offering owners a fair buyback. Consumers paid a premium price. They should be able to expect a premium vehicle that is dependable.

I was driving down the interstate when the rpms on my car increased and my car started to shutter. I went to get off the roadway and it put itself into neutral and lowered my speed. When I got on the shoulder it stalled and would not turn back on. I had to be towed. To this point, my car has been in the shop for over a week with no solution.

Vehicle shifted into neutral while driving down the highway, extremely dangerous. Would not shift into gear and could not accelerate. Was able to pull over and the vehicle would not restart. Had to have the vehicle towed to a dealership. Dealership found a blown fuse, problem happened again twice and the dealer could not find the problem. This was July 28th, 2026. On August 20th, while in cruise control, slight ringing noise began, then a loud thump, then a loss of oil pressure. Unable to do anything other than pull over on an interstate with my family. Again, very dangerous. The vehicle would not restart and could not be shifted out of park. Had to have the vehicle towed again. Have also had at least 8 recalls on the vehicle. Unbelievably dangerous situations with my family, aside from inconvenient and expensive.

I have a 2023 GMC Yukon that has been to the dealership 3 times in a weeks time, and as of today, 8/31/26 will be the fouth time. On 2 occasions, the SUV has entered limp mode while driving. I had the SUV towed for the first limp mode, and the dealer claimed it needed recalibration modules. I picked up the car and drove home eight miles, and the check engine light came on. I returned the next day for readings and tcm p0700, p1789, u0101, u220f. The dealer's solution was to recalibrate the gateway module this time. I drove the car about 20-ish miles, and at highway speeds on the freeway, I got limp mode again. Off to the dealership, having the SUV towed again. The dealership has claimed the electrionic car codes clear themselves and because of that they can't re-create the codes to find a solution. I am scared to drive my SUV, I do not feel safe in it let alone my children.

2023 Yukon denali, 6. 2 engine. Owner complied with first gm recall and the engine passed inspection. 8/16/26 engine started making a knocking sound. 8/17/26 Yukon was taken to the dealership and diagnosed as complete engine failure. There were no warnings indicated on the dash. Yukon is currently still at the dealership with no repair date issued. Today is 9/3/26. I have contacted gm regarding a possible buy-back. Gm said they would email in 24-48 hours. I have not heard from gm and it is now 72 hours since my initial phone call.

The contact owns a 2023 GMC Yukon. The contact stated that while driving at an undisclosed speed, the vehicle made an abnormal clunking sound. The contact pulled over and inspected under the hood. The vehicle was restarted, and the engine revved six times with smoke coming from under the hood. The contact stated that the transmission was previously replaced. The vehicle was towed to the dealer, who discovered that jiffy lube had used an incorrect engine oil during an oil change. The contact was informed to contact jiffy lube and file a claim. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 36,000.

My vehicle had a previous engine recall that was “fixed” per the dealership recommendations. However, I succumbed to total engine failure last week at 70000 miles with my 2 little kids in the car on an interstate. My engine needs replaced.

My vehicle was taken in as part of the 25v-274 recall. It passed and was given the new oil. It underwent a second oil change using the new oil and before the third oil change at around 46,000 miles the engine was having trouble. I took it in for the oil change and the engine issue. I have barely been told anything but from what I understand I have a camshaft issue and need new lifters. I haven't seen my car in 12 days and have received almost to no updates.

Our lifters in cylinder 3 were replaced after failing at 40,000 miles. The exact same lifters broke again at 77,000 miles. Both events caused engine failure.

I am reporting a severe, recurring, and life-threatening manufacturing defect involving a sudden, catastrophic loss of motive power at highway speeds on the interstate. This vehicle has suffered two identical valvetrain failures that placed my passengers and nearby motorists in extreme danger. Incident 1 (approx. 40,000 miles): while traveling at high speed on the interstate, the vehicle violently shook, all engine warning lights flashed, and the engine suffered an immediate, near-total loss of propulsion. The vehicle was towed to an authorized GMC dealership, where technicians diagnosed a collapsed dynamic fuel management (dfm) hydraulic lifter in cylinder 3. The lifter bank was replaced under the factory powertrain warranty. Incident 2 (approx. 77,000 miles): while driving at high speed on the interstate, the exact same vehicle behavior occurred. The engine suffered a sudden, total loss of power, and all dashboard warning lights illuminated simultaneously. Out of absolute necessity and to avoid a catastrophic high-speed collision on a dangerous stretch of highway, the severely crippled vehicle had to be forced through active interstate traffic without proper engine power all the way to my home. The vehicle has since been inspected by a GMC dealership, which has confirmed that the exact same cylinder 3 lifter has failed a second time. The dealership and the GMC regional service manager are currently refusing to honor the 24-month dealer-installed service parts warranty, demanding an out-of-pocket deposit of $5,000, and denying alternative transportation. Gm's failure to permanently remediate this known, systemic valvetrain defect has twice left me navigating a failing vehicle through high-speed highway traffic, heavily compounding the safety risk.

Vehicle became disabled. Gm service center determined that the crankshaft failed and lifter rods bent causing total engine failure. Gm service center unable to determine cause and the engine is being replaced at a significant out of pocket cost.

2023 GMC Yukon xl(6. 2 liter engine). Engine has failed twice with the first incident being on the interstate and the engine seized without warning with only 38,000 miles. GMC replaced the engine and now the second engine has failed with only 80,000 miles on it. I am told there needs to be a third engine installed and the vehicle is only three years old. If an engine fails without warning this puts everyone in danger. My [xxx] son was in the car when the first engine failed. There is an obvious manufacturer's defect that needs to be addressed before innocent people are injured or killed. The vehicle is currently located at darrell waltrip GMC in franklin, tennessee. It is not drivable. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Second engine sized at 87,834 miles. Third engine installed three weeks later.

Engine failure.

Catastrophic engine failure and sudden loss of propulsion on a highway after completing gm's ow-40 oil recall remedy.

The engine tries to die when in park. While stopped at a red light, it died and stated conditions not met to shift. Had to hit park button then restart it. This has happened 4 times. With & without auto start feature on.

While driving down [xxx] in [xxx] engine had a major failure causing the loss of power and control of the vehicle going interstate speed. Luckily no accidents and no injuries or fatalities. All the these vehicles using the 6. 2l engines made by gm should be bought back by gm at full purchase price. A few months ago my vehicle underwent the recall procedure and passed. So the recall process is incomplete and shows no real problem solving procedures, these vehicles are a ticking time bomb to all the owners and fellow motorists. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

2023 Yukon xl at4 with 67k miles suddenly had lifters fail. Gm service said cam scored & metal debris all the way through to the pan, requiring total engine replacement. Vehicle was very well maintained with premium fluids and parts.

Am filing a formal complaint regarding my 2023 GMC Yukon denali, which experienced a catastrophic engine failure while I was driving on the highway with my family. The sudden failure created a dangerous situation, placing both my family and me at significant risk. As a result of the breakdown, I was forced to pay $260 out of pocket to have the vehicle towed to the dealership. After inspecting the vehicle, the dealership advised me that the engine requires complete replacement. There was no indication that the engine was going to go. Thankfully there was a shoulder on the highway and we were able to pull over. This could have caused an accident could've been fatal.

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.

The contact owns a 2023 GMC Yukon xl. The contact stated that while driving approximately 30 mph, the vehicle stalled. The vehicle failed to restart. The vehicle was towed to a dealer; however, the failure was not duplicated. The manufacturer was not notified of the failure. The failure mileage was 49,460.

At approximately 58,565 miles, my 2023 GMC Yukon denali equipped with the 6. 2l l87 v8 experienced an internal engine failure. The vehicle had previously completed the applicable l87 engine recall remedy earlier in 2026. The vehicle developed a thumping noise and was inspected by an authorized GMC dealership. The dealer confirmed metal contamination in the engine oil and diagnosed a main thrust bearing failure. The condition was confirmed by the dealer and required complete engine replacement rather than a minor repair. The vehicle was out of service for approximately 31 days while the engine replacement was completed. Gm authorized and covered installation of a complete factory replacement engine. The failed engine is available for inspection if requested. The failure created a significant safety concern because an internal engine failure of this type can result in loss of motive power while driving, potentially creating a hazard for the occupants and other motorists. I am aware that NHTSA is currently investigating l87 engine failures occurring after recall remedies. I am submitting this complaint because my vehicle experienced a documented internal engine failure after the vehicle had already received the applicable recall remedy and subsequently required a complete engine replacement. The replacement engine has not currently failed, and I am not reporting a failure of the replacement engine. However, I am concerned about the effectiveness of the remedy and whether the replacement engine incorporates updated or revised components intended to address the underlying failure condition. I have requested documentation from the dealership regarding the exact replacement engine assembly and whether it incorporates engineering or production changes related to the original bearing failure. That information has not yet been provided. No crash or injury occurred as a result of this failure.

1. Description of the incident: on 6/28/26, while driving my 2023 GMC Yukon denali at approximately 70 miles per hour with cruise control engaged, I attempted to take an exit. As I approached the exit, the vehicle’s display indicated that it was not in gear, despite being in motion. This malfunction occurred in heavy traffic, and I narrowly avoided a collision with a semi-truck as I maneuvered towards the shoulder of the road. Once safely on the shoulder, I attempted to shift the vehicle into drive and park, but the system reported that the application was not available, rendering the vehicle inoperable. After several unsuccessful attempts to restart the vehicle, I lost all power, leading me to suspect a battery or alternator issue. 2. Component/system failure: the component that failed is the engine, which was subsequently diagnosed as having failed by the dealership. The failed engine is available for inspection upon request. 3. Safety risks: this incident posed significant safety risks, including: •risk of collision: the sudden loss of power at high speed nearly resulted in a collision with a semi-truck and other vehicles, putting my life and the lives of others at risk. •stranded in dangerous conditions: being stranded on the side of the road in 100°f weather further exacerbated the situation, creating a potential health hazard. 4. Confirmation of the problem: the problem was confirmed by the dealership that serviced my vehicle. They conducted a thorough inspection and determined that the engine had failed. Independent verification of the engine failure is available upon request. 5. Inspections by authorities: the vehicle has been inspected by the dealership; however, it has not been inspected by police or insurance representatives. Documentation from the dealership regarding the inspection and engine replacement is available. 6. Warning signs prior to failure: prior to this, there were no warning lamps, messages, or symptoms indicating a problem prior.

The contact owns a 2023 GMC Yukon. While the contact's wife was driving approximately 5-10 mph on a city street and approaching a stop sign, the vehicle experienced a failure and became inoperable. The contact stated that while the driver was attempting to restart the vehicle, the battery warning light and engine warning light illuminated, and the "low battery - start engine" message was displayed. The vehicle was towed directly to a dealer to be diagnosed. The dealer was unable to determine the cause of the failure but provided an estimate for the valve springs inspection. The vehicle was not repaired. The manufacturer was notified of the failure and was working with the dealer to determine how to repair the vehicle. The failure mileage was approximately 71,481.