2023 GMC Yukon

On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001.  This investigation was opened to assess the remedy effectiveness of Recall 25V-274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued Recall 25V-274 to address concerns of engine failure in the L87 engines produced between March 1, 2021 and May 31, 2024. GM cited the root cause as a supplier manufacturing and quality issue. GM’s recall remedy for Recall 25V-274 consisted of two different repairs, either an oil viscosity change or an engine replacement, based on the results of the remedy inspection procedure. ODI continues to receive reports of engine failures after the completion of the recall remedy. To date, ODI has received 499 complaints alleging post-remedy engine failure in vehicles subject to Recall 25V-274, 473 of which involved an oil viscosity change and 26 a complete engine replacement. Additionally, ODI has received 191 reports of L87 engine failures in engines produced after the production period cited in Recall 25V-274. GM reported receiving 6,953 complaints of post-remedy engine failure. ODI is opening this Engineering Analysisto continue investigating complaints of post-remedy engine failure. ODI is expanding the scope of this Investigation to include engines produced after the production period cited in the recall. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

The Office of Defects Investigation (ODI) has received 1,157 reports of engine bearing failure failures in the L87 6.2L engine produced by General Motors (GM). Of the 1,157 reports received, 173 are outside of the scope of recall 25V-274. These engines are installed in Model Years (MY) 2019–2024 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2021-2024MY Chevrolet Suburban and Tahoe, GMC Yukon/Yukon XL, and Cadillac Escalade/Escalade ESV vehicles. The subject engine failures were investigated as part of a Preliminary Evaluation (PE25001).  GM determined that these engine failures were due to multiple supplier manufacturing and quality issues. GM issued recall 25V-274 to address the supplier manufacturing and quality issues produced between March 1, 2021, and May 31, 2024. Based on the issuance of recall 25V-274, NHTSA has closed PE25001. ODI continues to receive a significant number of reports of engine failure in vehicles outside the scope of 25V-274.  This presents a potential safety risk that warrants further investigation.  ODI is opening this Engineering Analysis (EA) to further evaluate the scope and severity of the potential problem and to fully assess the potential safety-related issues of vehicles built outside the recall scope. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001.  This investigation was opened to assess the remedy effectiveness of Recall 25V-274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued Recall 25V-274 to address concerns of engine failure in the L87 engines produced between March 1, 2021 and May 31, 2024. GM cited the root cause as a supplier manufacturing and quality issue. GM’s recall remedy for Recall 25V-274 consisted of two different repairs, either an oil viscosity change or an engine replacement, based on the results of the remedy inspection procedure. ODI continues to receive reports of engine failures after the completion of the recall remedy. To date, ODI has received 499 complaints alleging post-remedy engine failure in vehicles subject to Recall 25V-274, 473 of which involved an oil viscosity change and 26 a complete engine replacement. GM reported receiving 6,953 complaints of post-remedy engine failure. ODI will close this RQ and continue to investigate complaints of post-remedy engine failure for Recall 25V-274 as part of an Engineering Analysis (EA26005). To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

On January 16, 2025, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE25001 after receiving complaints and field reports concerning engine failures in MY2019-2024 GM’s full-size truck and SUV T1XX platform equipped with the L87 6.2L V8 engine. These complainants alleged engine bearing failures resulting in knocking and growling noises from the engine’s bottom end and in some cases more severe consequences such as broken connecting rods leading to engine damage, or engine failure. If the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash. On April 24, 2025, GM issued recall 25V-274 to address the concern with L87 engines produced between March 1, 2021, and May 31, 2024.  GM cited the root cause as a supplier manufacturing and quality issues. GM’s  recall remedy will be either an oil change to an oil with a different viscosity or engine replacement depending on the results of the remedy inspection procedure. To date, ODI has received 1,157 allegations of engine bearing failure. GM submitted 55,464 reports in total, with 29,752 unique VINs. ODI continues to receive allegations of L87 engine failures which fall outside of the scope of recall 25V-274. Based on GM’s recall, ODI will close this PE. NHTSA will continue to investigate complaints of engine failure outside the scope of recall 25V-274 as part ofEngineering Analysis (EA25007). To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

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.

NHTSA ID

11766495

Incident

Sep 5, 2026

Local mechanic doing service stated that rust has become significant and not normal. Covers most of the underbody, frame and components.

NHTSA ID

11766128

Incident

Sep 22, 2026

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

NHTSA ID

11766119

Incident

Sep 3, 2026

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.

NHTSA ID

11765071

Incident

Sep 12, 2026

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.

NHTSA ID

11764936

Incident

Sep 15, 2026

I have a 2023 GMC Yukon SLT. The OnStar/telematics system stopped working. The blue OnStar button does not function, and the vehicle no longer communicates with the myGMC app, resulting in the loss of OnStar and connected services. A GMC dealership diagnosed a failed OnStar/telematics module and advised that replacement will cost approximately $1,200. This creates a safety concern because OnStar provides emergency services, including Automatic Crash Response and the ability to request emergency assistance from inside the vehicle. A module failure could leave an occupant without access to these services when they are needed most. I am also concerned that OnStar and telematics failures appear to be reported by owners of multiple GM vehicles, suggesting this may not be an isolated failure. I am requesting that this issue and similar complaints be investigated to determine whether there is a broader defect requiring a recall, warranty extension, service campaign, or other corrective action.

NHTSA ID

11764611

Incident

Feb 11, 2026

On May 8th of 2026 my 2023 GMC Yukon with approximately 42,900 miles experienced an complete failure of the 6.2L engine requiring replacement. The engine failure occurred despite the engine having recently undergone inspection and special oil being used related to NHTSA 25V274 / GM N252494000 recall. When the engine failed, the vehicle could not be towed or pushed out of the flow of traffic because the computer will not allow the vehicle to be shifted into neutral, only showing "Conditions not correct for shift" in the instrument cluster. This sudden and unexpected loss of engine power combined with the inability to remove the vehicle from the lane of traffic creates a dangerous situation.

NHTSA ID

11764052

Incident

May 8, 2026

I am filing this complaint regarding a catastrophic engine failure in my 2023 GMC Yukon Denali. I purchased the vehicle on January 30, 2026. Shortly after purchasing it, the vehicle suffered a catastrophic engine failure. The failure was severe enough that the engine had to be completely replaced. My vehicle was out of service for approximately 38 days as a result. This was not a minor mechanical issue or routine repair. It was a catastrophic failure of a major component in a relatively new vehicle. I am extremely concerned about the safety implications of an engine failing without warning. An unexpected engine failure can result in a sudden loss of power and the inability to safely accelerate or maneuver, particularly when traveling at highway speeds or in traffic. The fact that the engine required complete replacement raises serious concerns regarding the reliability and safety of this engine and whether other GMC and Chevrolet vehicles equipped with the same or related engine may be experiencing similar failures. I am requesting that NHTSA formally document this catastrophic engine failure and investigate whether it is part of a broader pattern of engine failures involving these GM vehicles. I have documentation showing the engine failure, dealership diagnosis, complete engine replacement, repair history, and the approximately 38 days the vehicle was out of service. I can provide these records upon request.

NHTSA ID

11762433

Incident

Mar 6, 2026

This PI is created to inform GM dealers that some vehicles may intermittently fail to connect wireless Apple CarPlay or Android Auto after Bluetooth pairing during the first key cycle. The condition is caused by a software anomaly.

This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display

This preliminary information communicates diagnostic tips for air leveling suspension system.

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

This PI is created to inform GM dealers that some vehicles may intermittently fail to connect wireless Apple CarPlay or Android Auto after Bluetooth pairing during the first key cycle. The condition is caused by a software anomaly. Do not replace parts. Engineering is investigating the root cause; customers may continue to drive the vehicle. This PI will be updated or replaced by a TSB once a resolution is determined.

This PI was created to address an Intermittent Loss of Connectivity, GPS, or Wi-Fi Due to OnStar Module concern.