NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
236 reportsClear category filterMileage unknown · Feb 28, 2025
EnginePower Train
While driving at 65 mph, the engine locked up, the truck went into neutral, and all power was lost. This occurred with no warning at all. The truck was towed 40 miles to a GMC dealership for repairs. GMC dealership has indicated that the engine is permanently locked up and will have to be replaced. The dealership did not pro…
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While driving at 65 mph, the engine locked up, the truck went into neutral, and all power was lost. This occurred with no warning at all. The truck was towed 40 miles to a GMC dealership for repairs. GMC dealership has indicated that the engine is permanently locked up and will have to be replaced. The dealership did not provide any explanation as to why the engine locked up.
NHTSA ODI #11645480
73,000 miles · Feb 24, 2025
Engine
The contact owns a 2022 GMC Sierra 1500. The contact stated while driving 75 MPH, there was an abnormal squeezing sound coming from the engine compartment, before the vehicle lost motive power. The contact was able to coast to be the dealer, where the vehicle was able to be restarted. The check engine warning light was illuminat…
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The contact owns a 2022 GMC Sierra 1500. The contact stated while driving 75 MPH, there was an abnormal squeezing sound coming from the engine compartment, before the vehicle lost motive power. The contact was able to coast to be the dealer, where the vehicle was able to be restarted. The check engine warning light was illuminated. The vehicle was taken to the dealer, who determined that the engine had seized. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 73,000.
NHTSA ODI #11644658
Mileage unknown · Feb 21, 2025
Engine
On 1 February 2025; I was stuck in the mud, in my pickup. As I was attempting to get out, my truck died. After several attempts to restart my truck; I was towed to my lake camp. Which located less than 100 yards away. Since it was no longer had a current warranty I contacted a mechanic. He arrived the following day and discover…
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On 1 February 2025; I was stuck in the mud, in my pickup. As I was attempting to get out, my truck died. After several attempts to restart my truck; I was towed to my lake camp. Which located less than 100 yards away. Since it was no longer had a current warranty I contacted a mechanic. He arrived the following day and discovered that the engine was “locked up”. I had it towed to his shop, and he began to diagnose the engine. He has determined that the crankshaft is broken and 2 rod bearing are spun. He is currently checking for piston borehole damage. If no other damages are found, he will ordered repair parts and repair my engine.
NHTSA ODI #11644132
Mileage unknown · Feb 19, 2025
Engine
While traveling from Florida back to Louisiana on [XXX], I stopped at a store when I came back out the vehicle would not start. I ended up having the battery boosted by a gentleman and then returned to my drive home. I drove from Quincy, Florida where the truck wouldn’t start to the [XXX] exit in Louisiana. I made 2 other stops…
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While traveling from Florida back to Louisiana on [XXX], I stopped at a store when I came back out the vehicle would not start. I ended up having the battery boosted by a gentleman and then returned to my drive home. I drove from Quincy, Florida where the truck wouldn’t start to the [XXX] exit in Louisiana. I made 2 other stops but left the vehicle idling at both stops. At the [XXX] exit, I left the vehicle idling while I went inside and the vehicle quit running on its own. After many unsuccessful attempts, I couldn’t get the vehicle started again. I replaced the battery with no luck. Since it was Sunday night, I was unable to get the vehicle towed so I left the vehicle at the gas station and got a ride back to Baton Rouge so I could borrow a vehicle to get back to Winnfield, LA for work the following morning. My parents went the next morning ([XXX]) and had the mega switch replaced and the truck started right up. My mother then drove the vehicle to Baton Rouge, when she stopped at a traffic light, the truck quit again and she called OnStar to have it towed to Gerry Lane GMC. On [XXX], I received a call from Scott at Gerry Lane stating the vehicle had a lower engine knock and the truck needed a new engine. After multiple phone calls and my parents going to the dealership, mg parents were finally told the oil filter was filled with metal. None of that information was given in the phone call to me. I was simply told it needed a new engine with no explanation of how we got from a truck that wouldn’t start to needing a new engine. After waiting an extended time frame for them to locate an engine, I was finally able to pickup my truck on [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11643777
Mileage unknown · Feb 18, 2025
Engine
Engine blown traveling at 35mph vehicle is currently at Lake Chevy GMC in Lewistown Pennsylvania awaiting a new engine, dealer is warrantying engine (so far) awaiting new engine dealer said it will be several weeks before receiving the replacement engine. I’m aware there’s an ongoing investigation.. Thought I’d add my vehicle to…
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Engine blown traveling at 35mph vehicle is currently at Lake Chevy GMC in Lewistown Pennsylvania awaiting a new engine, dealer is warrantying engine (so far) awaiting new engine dealer said it will be several weeks before receiving the replacement engine. I’m aware there’s an ongoing investigation.. Thought I’d add my vehicle to the list of engines failures during normal operation.. Vehicle has 43,XXX miles completed its first tire change the day before.
NHTSA ODI #11643384
Mileage unknown · Feb 13, 2025
Engine
In August 2023, while driving on the interstate during rush hour, a critical engine component fell out of my vehicle, leaving me stranded in a dangerous situation. The car was towed to the dealership, where I was informed that a piston had fallen off the engine, requiring a full engine replacement. Now, in January 2025, my vehi…
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In August 2023, while driving on the interstate during rush hour, a critical engine component fell out of my vehicle, leaving me stranded in a dangerous situation. The car was towed to the dealership, where I was informed that a piston had fallen off the engine, requiring a full engine replacement. Now, in January 2025, my vehicle has once again failed—this time shutting off completely while I was driving on the Selmon Expressway, putting my safety at risk. After being towed to the dealership, I have now been informed that the engine has seized and will not turn, requiring yet another full engine replacement. This is completely unacceptable. As a loyal GMC owner, I have never experienced such catastrophic failures, let alone twice within such a short period. Engine replacements should not be a recurring issue, and I am deeply frustrated by the lack of reliability and the significant financial and safety concerns this has caused.
NHTSA ODI #11642646
Mileage unknown · Feb 13, 2025
Engine
At approximately 18,000 miles the engine on my brand new GMC seized up while I was taking 4 of my employees Downtown Detroit. The engine stopped as I was merging into 3 lanes of traffic from the left lane. I had to cross 3 lanes during rush hour almost resulting in a major accident. Then I had to wait 2 months to replace the …
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At approximately 18,000 miles the engine on my brand new GMC seized up while I was taking 4 of my employees Downtown Detroit. The engine stopped as I was merging into 3 lanes of traffic from the left lane. I had to cross 3 lanes during rush hour almost resulting in a major accident. Then I had to wait 2 months to replace the engine. 25,000 miles later, the second engine seized up while I was transporting my father between nursing home facilities. The third engine, I have recently been told only has a 12,000 mile warranty. I have requested that GM give me a 60,000 mile warranty on this 3rd engine and they refuse as it is past 30 days since the 3rd engine was installed. I should be getting a new truck, but I am just asking for a warranty. This is a known problem, which obviously has not been fixed. In both instances, there were no indications of a problem until the engine stopped running. The first time, I had 4 of my employees, which I was responsible for, in my car merging in the left lane with no engine power during rush hour, putting everyone at great risk, including other cars and people. The 2nd time, I had my [XXX] father in transit between nursing home facilities. This obviously was a very stressful event for both of us. Both of the dealerships that replaced the engines confirmed that they have been seeing this same issue in many other GM trucks. I personally know of 3 people that this has happened to. In both cases, I had to wait weeks to replace the engine because of the backlog to order the engine for other people. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11642445
60,800 miles · Feb 7, 2025
Engine
The contact owns a 2022 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, there was a loud knocking sound coming from the engine compartment. The vehicle was driven to the residence. The vehicle was taken to the dealer and was diagnosed with engine failure. The contact was informed that the engine needed…
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The contact owns a 2022 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, there was a loud knocking sound coming from the engine compartment. The vehicle was driven to the residence. The vehicle was taken to the dealer and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired; however, the contact was informed that parts for the engine replacement repair were on backorder. The manufacturer was made aware of the failure and a case was filed. The contact was informed that the repair was covered under warranty. The failure mileage was approximately 60,800.
NHTSA ODI #11641326
Mileage unknown · Feb 5, 2025
Engine
Engine Mileage is 72,728, on my 2022 GMC Sierra 1500 AT4, L87 V8 Engine. While driving [XXX] to drop off a co-worker at a Toyota dealership, my engine started making a strange "clicking" sound. A Toyota tech came out to look at it quick and suggested I try to get to a GMC dealer about .5 miles down the road. I made it about 100 …
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Engine Mileage is 72,728, on my 2022 GMC Sierra 1500 AT4, L87 V8 Engine. While driving [XXX] to drop off a co-worker at a Toyota dealership, my engine started making a strange "clicking" sound. A Toyota tech came out to look at it quick and suggested I try to get to a GMC dealer about .5 miles down the road. I made it about 100 yards before the entire truck shut down. The dash went black and then engine stopped running. Had to get towed to the dealership. Engine is considered "dead" by Diamond Auto in Worcester, MA, and the cost to replace the L87 V8 Engine is quoted at roughly $11,717.89. There have been zero prior engine issues on this vehicle. The engine failure came out of no where. Thank you for your time- [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11640904
Mileage unknown · Feb 4, 2025
Engine
I have a 2022 GMC Sierra 1500 AT4 with a 6.2 engine. The truck had roughly 50,000 miles on it when the engine completely stopped working while I was driving on a busy multi lane highway during rush hour. After almost getting hit by multiple vehicles while trying to glide my truck to the side of the highway. I waited 2 hours tryi…
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I have a 2022 GMC Sierra 1500 AT4 with a 6.2 engine. The truck had roughly 50,000 miles on it when the engine completely stopped working while I was driving on a busy multi lane highway during rush hour. After almost getting hit by multiple vehicles while trying to glide my truck to the side of the highway. I waited 2 hours trying to get my truck towed to a local dealership and the next day was told that my engine completely seized up and my engine needed to be replaced. I waited two months without my truck while it was at the dealership waiting on an engine that was back ordered. They told me it was complete engine failure. They couldn’t figure out why, all fluids were good yet the engine failed.
NHTSA ODI #11640732
Official recalls
6Feb 12, 2026
General Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797. The transmission control valve may fail and cause the rear wheels to lock up.
Consequence & remedy
Consequence: Rear wheel lock up increases the risk of a crash.
Remedy: Dealers will inspect the vehicles and update the transmission control software, free of charge. Owner notification letters were mailed March 6, 2026. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252516560. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 12, 2026.
Additional source detail variants (2)
Power Train:automatic Transmission:fluid/lubricant:valves/valve Body
General Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797. The transmission control valve may fail and cause the rear wheels to lock up.
Consequence: Rear wheel lock up increases the risk of a crash.
Remedy: Dealers will inspect the vehicles and update the transmission control software, free of charge. Owner notification letters were mailed March 6, 2026. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252516560. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 12, 2026.
Power Train:automatic Transmission:control Module:software
General Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797. The transmission control valve may fail and cause the rear wheels to lock up.
Consequence: Rear wheel lock up increases the risk of a crash.
Remedy: Dealers will inspect the vehicles and update the transmission control software, free of charge. Owner notification letters were mailed March 6, 2026. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252516560. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 12, 2026.
Apr 24, 2025
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.
Consequence & remedy
Consequence: 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.
Feb 6, 2025
General Motors, LLC (GM) is recalling certain 2022 GMC Sierra 1500 vehicles equipped with chrome front grille deflectors. The attachments that hold the front grille deflectors in place may fracture, resulting in grille detachment.
Consequence & remedy
Consequence: A detached front grille deflector may become a road hazard, increasing the risk of a crash.
Remedy: Dealers will reinforce or repair all attachment points on the chrome front grille deflector, free of charge. Owner notification letters were mailed March 17, 2025. Owners may call GM customer service for GMC at 1-800-462-8782. GM's number for this recall is N242490120.
Oct 24, 2024
General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.
Consequence & remedy
Consequence: Rear wheel lock-up can increase the risk of a crash.
Remedy: Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.
Additional source detail variants (2)
Power Train:automatic Transmission:fluid/lubricant:valves/valve Body
General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.
Consequence: Rear wheel lock-up can increase the risk of a crash.
Remedy: Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.
Power Train:automatic Transmission:control Module:software
General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.
Consequence: Rear wheel lock-up can increase the risk of a crash.
Remedy: Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.
Dec 8, 2022
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."
Consequence & remedy
Consequence: 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.
Jun 30, 2022
General Motors (GM) has decided that certain 2022 model year Chevrolet Silverado, and GMC Sierra vehicles equipped with an accessory sport bar. The accessory sport bar contains a high-mounted brake light that may not function. In addition, it may block the vehicle's existing high-mounted brake light. As such, these vehicles may fail to conform to Federal Motor Vehicle Safety Standard (FMVSS) number 108, "lamps, reflective devices, and associated equipment."
Consequence & remedy
Consequence: An inoperative high-mounted brake light can reduce visibility to other drivers and increase the risk of a crash.
Remedy: Dealers will inspect the installation of the accessory bar and provide the correct vehicle wiring, if necessary, free of charge. Interim owner notification letters advising owners of the safety risk were mailed on August 10, 2022. Owner notification letters were mailed on January 27, 2023. Owners may contact GM's customer service on 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020.. GM's recall number for this recall is N222368110.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
4EA26005 · Loss Of Motive Power Due To Engine Failure Post Recall Remedy
Opened Aug 20, 2026 · No close date supplied
Status: open (inferred from source dates) · Engine
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.
RQ26001 · Loss Of Motive Power Due To Engine Failure Post Recall Remedy
Opened Jan 16, 2026 · Closed Aug 20, 2026
Status: closed (inferred from source dates) · Engine
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.
EA25007 · Loss Of Motive Power Due To Engine Failure
Opened Oct 23, 2025 · No close date supplied
Status: open (inferred from source dates) · Engine; Engine And Engine Cooling:engine:hard Parts Internal/mechanical
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.
Additional source detail variants (2)
Engine And Engine Cooling:engine:hard Parts Internal/mechanical
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.
Engine
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.
PE25001 · Loss Of Motive Power Due To Engine Failure
Opened Jan 16, 2025 · Closed Oct 23, 2025
Status: closed (inferred from source dates) · Engine; Engine And Engine Cooling:engine:hard Parts Internal/mechanical
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.
Additional source detail variants (2)
Engine And Engine Cooling:engine:hard Parts Internal/mechanical
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.
Engine
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.
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