Coolant Control Valve is malfunctioning. Running Fans: Loud cooling fans running at full blast shortly after turning off the engine. Extended Warranty Coverage: General Motors issued special coverages (N252508341 / N252508340) extending coolant control valve warranty protection to 15 years or 150,000 miles for select 3.0L Dur…
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Coolant Control Valve is malfunctioning. Running Fans: Loud cooling fans running at full blast shortly after turning off the engine. Extended Warranty Coverage: General Motors issued special coverages (N252508341 / N252508340) extending coolant control valve warranty protection to 15 years or 150,000 miles for select 3.0L Duramax vehicles. Unfortunately, GM says my VIN isn’t covered by the extended warranty even though it has all the same issues as those that are.
NHTSA ODI #11759739
Mileage unknown · Aug 25, 2026
EnginePower Train
July 11, 2026 I experienced a lifter failure. Towed to GM dealer on July 13th. Dealer comfirmed lifter failure and camshaft damage and metal contamination throughout engine. Dealer installed replacement engine using my mechanical breakdown policy since I was out of factory warranty. Picked up truck one month later with new engin…
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July 11, 2026 I experienced a lifter failure. Towed to GM dealer on July 13th. Dealer comfirmed lifter failure and camshaft damage and metal contamination throughout engine. Dealer installed replacement engine using my mechanical breakdown policy since I was out of factory warranty. Picked up truck one month later with new engine and the transmission started slipping and shuttering. Took back to dealer who claimed metal fragments in fluid and said transmission needed to be replaced. I then made a second claim on my mechanical breakdown policy and the dealer replaced the transmission. All of these issues are known issues with the engine and transmission.
NHTSA ODI #11759506
Mileage unknown · Aug 23, 2026
Electrical SystemEngineFuel/propulsion System
Engine abruptly lost power in middle of high speed lane. I did not have enough momentum to make it to safety, totally on the shoulder, Transmission locked up, couldn’t move vehicle to safety, Extremely dangerous situation!!!
NHTSA ODI #11758852
Mileage unknown · Aug 23, 2026
Engine
Lifters failed at 4,000 miles.
NHTSA ODI #11758846
Mileage unknown · Aug 21, 2026
Engine
Component/system failed: The 6.2L L87 engine. The engine ultimately seized and the vehicle became inoperable. The engine should be available for inspection because it is being replaced under GM Special Coverage N252494003. Safety risk: The engine unexpectedly shut off while driving at highway speeds. Loss of propulsion in traff…
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Component/system failed: The 6.2L L87 engine. The engine ultimately seized and the vehicle became inoperable. The engine should be available for inspection because it is being replaced under GM Special Coverage N252494003. Safety risk: The engine unexpectedly shut off while driving at highway speeds. Loss of propulsion in traffic creates a significant collision risk. The inability to restart left the vehicle disabled. Confirmed: An independent repair facility confirmed that the engine was seized prior to towing it to the GM dealer. Yesterday the GM dealer confirmed i had a seized engine and it was going to be replacement under N252494003 special coverage entention. Inspections: My truck was inspected in October 25, for the recall. My truck passed this test, and was subsequently was told my oil spec has been revised. Warnings/symptoms: no warning was given
NHTSA ODI #11758561
Mileage unknown · Aug 21, 2026
Electrical SystemEngineService Brakes
While traveling in bumper to bumper highway traffic in my 2022 Chevrolet Silverado RST, I attempted to accelerate and the vehicle suddenly malfunctioned. I experienced sever loss/restriction of propulsion and the vehicle would not respond normally to accelerator input. I was able to maneuver toward the shoulder of the road while…
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While traveling in bumper to bumper highway traffic in my 2022 Chevrolet Silverado RST, I attempted to accelerate and the vehicle suddenly malfunctioned. I experienced sever loss/restriction of propulsion and the vehicle would not respond normally to accelerator input. I was able to maneuver toward the shoulder of the road while avoiding a major multi-car pile up involving innocent motorists. When I attempted to stop, I did not have normal braking ability and was unable to stop in the manner I expected. I had to use the shoulder of the highway to slow the truck down until I could come to a complete stop. This created an immediate risk of serious or fatal collision on the highway, and as I maneuvered the truck out of traffic to the side of the road. Had I been unable to reach the shoulder of the road, I could have been struck by surrounding traffic. Had this failure occured un an urban area or at an intersection, near pedestrians, or at a school bus stop- I could have seriously injured or killed people or myself. After I was able to come to a complete stop. I shut it off and turned it back on, then the truck read there was no gas left (I had a 1/2 tank). This incident is not isolated electronic glitch, I have experienced electrical malfunctions including the truck failing to start, unlocking, responding at all. This all occured after an engine replacement due to a recall. I am concerned that there are unresolved electrical and power-distribution, communication-network, propulsion or braking issues that presents a serious safety risk to myself and others. My concern is that if this malfunction occurred on my drive to work in the city, around pedestrians- it could have resulted in multiple fatalities.
NHTSA ODI #11758426
Mileage unknown · Aug 20, 2026
Engine
The vehicle previously received the official GM Recall Campaign 25V-274 remedy/inspection, but suffered catastrophic engine failure and sudden loss of propulsion afterwards.
NHTSA ODI #11758156
Mileage unknown · Aug 16, 2026
EnginePower Train
I have a 2022 silverado ltd with the 6.2. I purchased the truck about a month and a half ago the previous owner had the 40 weight oil recall completed prior to my purchase. I had the oil changed when it said 45 percent life remaining far before it was due a certified chevy dealer completed the oil change with the 40 weight corre…
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I have a 2022 silverado ltd with the 6.2. I purchased the truck about a month and a half ago the previous owner had the 40 weight oil recall completed prior to my purchase. I had the oil changed when it said 45 percent life remaining far before it was due a certified chevy dealer completed the oil change with the 40 weight correct oil. Well about 8 days ago I went out and started the truck and heard a clunk sound like a failing starter would make. So later that day I notice a ticking noise as well as a chirping noise. Coming from engine bay. I made note of it. Ever since the noise began I have kept close eyes on it the ticking and chirping rise and fall when I give it gas. Yesterday when I started it the clunk noise happened but this time I felt a shudder or stutter I looked at the rpms and they didn't move at all with the shudder. I have an appointment Monday morning to take it to the dealer I looked into the recall for the thicker oil. And learned that this motor is pretty much junk and multiple issues I haven't driven it since yesterday because the issues I'm having correspond with complete engine failure at any point and I do not want to be on the highway and it happen that would put me and other motorist at risk injury. There has been no warning lights no engine light just the initial clunk the first time and since that it's just been getting worse
NHTSA ODI #11757236
Mileage unknown · Aug 15, 2026
Engine
The motor seized. My life was at risk. I was on the highway. The vehicle was reported to the Chevy dealership and diagnose that the motor is locked.
NHTSA ODI #11757202
Mileage unknown · Aug 14, 2026
Engine
* Engine/ Yes available for inspection. * Has not happened yet, however the risk exists. * Yes, oil consumption and has been confirmed by dealer and monitored every 1,000 miles. * Been inspected by local dealer only. * Yes, low oil pressure light came on. I was 2 qtrs. LOW, XXX My vehicle was inspected and according to them "pa…
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* Engine/ Yes available for inspection. * Has not happened yet, however the risk exists. * Yes, oil consumption and has been confirmed by dealer and monitored every 1,000 miles. * Been inspected by local dealer only. * Yes, low oil pressure light came on. I was 2 qtrs. LOW, XXX My vehicle was inspected and according to them "passed". 0W-40 was introduced and a new oil cap indicates the change. GM explains that it is acceptable to burn up to 2 qtrs. of oil between oil changes. They have me come to the dealer every 1,000 miles to check the oil level. I came back from a work-related function, putting approx. 220 miles. It was time for oil level inspection, and my engine was found to be 1/2qtr. LOW. I ask them to top it off and I was told; “we do not stock this oil in bulk; you have to buy a qt. and we'll put it in." I have been a car owner since I was [XXX], now [XXX] and have never heard such nonsense in my life. In fact, in my lifetime, I have NOT experienced engine burning oil. This is a 6.2 liter with 57,700 and my fear is that something catoptric will happen to the motor resulting in no recourse. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
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.
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.
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.
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.
General Motors, LLC (GM) is recalling certain 2022 Chevrolet Silverado 1500 vehicles. The sensing diagnostic module (SDM) was left in manufacturing mode and not activated at the assembly plant prior to shipment. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Consequence & remedy
Consequence: An SDM in manufacturing mode will not deploy the vehicle's air bags in a crash, increasing the risk of occupant injury.
Remedy: Dealers returned the vehicles to the GM assembly plant and the sensing diagnostic modules were activated. The vehicles had not been sold from dealer inventory and therefore no owner letters will be mailed. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222387870.
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
4
EA26005 · 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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