NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
14 reportsClear category filterMileage unknown · Sep 8, 2026
EnginePower Train
On August 17, 2026, at approximately 96,685 miles, my 2024 Cadillac Escalade ESV equipped with the 6.2L L87 V8 engine lost motive power while I was driving on Highway 101 in California. The vehicle stalled, I pulled over, and I was unable to restart it. The vehicle was towed to the dealer. The dealer diagnosed a seized engine th…
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On August 17, 2026, at approximately 96,685 miles, my 2024 Cadillac Escalade ESV equipped with the 6.2L L87 V8 engine lost motive power while I was driving on Highway 101 in California. The vehicle stalled, I pulled over, and I was unable to restart it. The vehicle was towed to the dealer. The dealer diagnosed a seized engine that would not rotate, with metal contamination in the oil system and internal engine damage caused by a failed bearing. During teardown, the dealer specifically documented that the rod bearing failed and caused the engine seizure. This vehicle had previously received the GM L87 engine recall remedy on August 11, 2025, at approximately 47,987 miles. The dealer documented that the required PicoScope test passed and that the vehicle was operating normally at that time. The engine failure occurred approximately 48,698 miles after the recall remedy. GM subsequently replaced the engine under warranty. I am reporting this as a safety-related loss-of-motive-power event because the engine failed while the vehicle was traveling on a major highway and could not be restarted. I request that NHTSA consider this incident in connection with Recall 25V-274 and Recall Query RQ26001 and evaluate whether the recall remedy adequately identifies L87 engines that remain at risk of subsequent failure.
NHTSA ODI #11762937
Mileage unknown · Jul 6, 2026
EngineFuel/propulsion SystemPower Train
I own a 2024 Cadillac Escalade ESV equipped with GM's 6.2L L87 V8 engine. The recall remedy for GM Safety Recall N252494000 (NHTSA Campaign No. 25V-274) was completed on April 17, 2026, at approximately 48,905 miles. Only approximately 2,347 miles later, on June 15, 2026, at approximately 51,252 miles, the engine experienced a…
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I own a 2024 Cadillac Escalade ESV equipped with GM's 6.2L L87 V8 engine. The recall remedy for GM Safety Recall N252494000 (NHTSA Campaign No. 25V-274) was completed on April 17, 2026, at approximately 48,905 miles. Only approximately 2,347 miles later, on June 15, 2026, at approximately 51,252 miles, the engine experienced a severe malfunction while I was driving with passengers. Without warning, the engine began running extremely rough with severe vibration and shaking. The Check Engine Light began flashing, and Service StabiliTrak and Service Traction Control warnings appeared. A few minutes after I stopped the engine, it would not restart. I found no measurable engine oil on the dipstick. When the engine was started again, a large amount of blue smoke was emitted from the exhaust, while the engine continued running extremely rough. GM's official MyCadillac application displayed critical warnings for the Engine & Transmission System, Emissions System, Transmission System, and Variable Valve Timing (VVT) System. GM ultimately determined that the engine required complete replacement under warranty. Despite completion of GM Safety Recall N252494000 (NHTSA Campaign No. 25V-274), the engine required complete replacement only approximately 2,347 miles later. The replacement engine remains on backorder. I understand that NHTSA has opened Recall Query RQ26001 regarding post-remedy L87 engine failures. Because my vehicle experienced a post-remedy engine failure only approximately 2,347 miles after completion of the recall repair, I respectfully request that this complaint be included as part of Recall Query RQ26001. I have preserved photographs, videos, diagnostic screenshots, and repair records.
NHTSA ODI #11748650
Mileage unknown · Apr 4, 2026
Engine
I had the recall performed on my ESV in December, but driving home from [XXX] my dash indicated that I needed to push start. I did and it slowly died. I had it towed to Andrews Cadillac where it was purchased and I learned that my engine locked up. It is being completely replaced with 41,000 miles. Thankfully it was under warr…
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I had the recall performed on my ESV in December, but driving home from [XXX] my dash indicated that I needed to push start. I did and it slowly died. I had it towed to Andrews Cadillac where it was purchased and I learned that my engine locked up. It is being completely replaced with 41,000 miles. Thankfully it was under warranty but apparently this is an ongoing issue with GM and the 6.2 liter engines. I won’t have my car for weeks while I await a new engine. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11729131
15,000 miles · Mar 25, 2026
Engine
The contact owns a 2024 Cadillac Escalade ESV. The contact stated that while driving approximately 60 MPH, the vehicle stalled. There was no warning light illuminated. The contact had the vehicle towed to a local dealer, where it was diagnosed and determined that the engine had failed and needed to be replaced. The contact was i…
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The contact owns a 2024 Cadillac Escalade ESV. The contact stated that while driving approximately 60 MPH, the vehicle stalled. There was no warning light illuminated. The contact had the vehicle towed to a local dealer, where it was diagnosed and determined that the engine had failed and needed to be replaced. The contact was informed that the 6.2-liter gasoline engine was on a national back order. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 15,000.
NHTSA ODI #11727002
Mileage unknown · Jan 13, 2026
Engine
Lifter failure. Camshaft damage and failure. Those were replaced. Within two weeks later: Complete engine failure. Seized while driving on interstate in traffic. Was stranded on Interstate near DFW airport. Required complete engine replacement. There was no warning before it seized.
NHTSA ODI #11710566
Mileage unknown · Jan 5, 2026
Engine
I was driving on the highway with the cruise control set at 70 mph. I heard a loud knocking/grinding noise that sounded like an old 1970s car with a blown engine. Turns out it was my Cadillac Escalade. I pulled off the highway and the grinding noise was very pronounced and worsened if you pushed the gas. I was 1 mile away from a…
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I was driving on the highway with the cruise control set at 70 mph. I heard a loud knocking/grinding noise that sounded like an old 1970s car with a blown engine. Turns out it was my Cadillac Escalade. I pulled off the highway and the grinding noise was very pronounced and worsened if you pushed the gas. I was 1 mile away from a Cadillac dealer (by God's good grace!) and managed to drive there. I have been told it is a catastrophic engine failure and the car has been in the shop 40 days waiting for an engine. GM/Cadillac cannot give me any estimate of when an engine will be available.
NHTSA ODI #11708883
Mileage unknown · Sep 11, 2025
Engine
The vehicle suddenly broke down on the road putting my life at risk, resulting into having it towed. Since then the engine light keeps coming on consistently after repairs. It has been consistent visit to the shop without a permanent solution. It has been in the shop for a month and is still in the shop. They’ve been unable to f…
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The vehicle suddenly broke down on the road putting my life at risk, resulting into having it towed. Since then the engine light keeps coming on consistently after repairs. It has been consistent visit to the shop without a permanent solution. It has been in the shop for a month and is still in the shop. They’ve been unable to find the problem until they informed me a new engine will be needed. I’ve attached invoices for consistent visit to the shop for the same problem involving the engine and the engine light always on. I have more documents available but I’m unable to upload due to the size but can be presented on request.
NHTSA ODI #11686718
Mileage unknown · Aug 7, 2025
EnginePower Train
On August 5, while driving on I-79 at 78 mph, our Escalade suddenly and completely shut off. The entire system failed — no power, no control — while our three children were in the car. This is the second GM vehicle we’ve owned to do this. Our previous Yukon Denali also shut off twice at highway speeds before we got rid of it out…
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On August 5, while driving on I-79 at 78 mph, our Escalade suddenly and completely shut off. The entire system failed — no power, no control — while our three children were in the car. This is the second GM vehicle we’ve owned to do this. Our previous Yukon Denali also shut off twice at highway speeds before we got rid of it out of fear for our safety. We reached out about the Escalade recall and were assured two months ago that our vehicle was not affected. Clearly, that assurance was wrong — and we’re now reliving the exact same terrifying situation with yet another GM vehicle. My kids are traumatized and refuse to get back in the car. Frankly, I don’t blame them.
NHTSA ODI #11678977
Mileage unknown · Jul 12, 2025
EngineService BrakesWheels
Dear NHTSA, My name is [XXX] , and I am the owner of a 2024 Cadillac Escalade ESV, VIN [XXX] . I am submitting this complaint because Cadillac and their dealership have failed to address serious safety recalls on my vehicle, despite repeated attempts on my part to get them resolved. ⸻ ⚠️ Recalls Involved: 1.NHTSA Recall 25V2…
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Dear NHTSA, My name is [XXX] , and I am the owner of a 2024 Cadillac Escalade ESV, VIN [XXX] . I am submitting this complaint because Cadillac and their dealership have failed to address serious safety recalls on my vehicle, despite repeated attempts on my part to get them resolved. ⸻ ⚠️ Recalls Involved: 1.NHTSA Recall 25V274000 / GM N252494000 – Engine defect that may cause engine failure or power loss, leading to potential crashes. 2.NHTSA Recall 24V674000 / GM N242447990 – Brake fluid warning light software may fail, increasing the risk of brake issues. ⸻ ❗ Why This Is Critical: I operate a professional black car service, transporting VIP clients and executives. These unresolved safety recalls put my customers, myself, and others at risk. Despite contacting the Cadillac dealership multiple times, they have refused to take action or provide a timeline for the necessary repairs. I believe this is a serious failure in protecting driver and passenger safety. ⸻ 🚗 Vehicle & Contact Information: •Year/Model: 2024 Cadillac Escalade ESV •VIN [XXX] 6 •Mileage: [Insert current mileage here] •Name [XXX] •Location: [City, State] •Email [XXX] •Phone: [Insert phone number] •Profession: VIP Driver – Black Car Service ⸻ 📩 Requested Action: I respectfully request that NHTSA take steps to ensure GM and their dealership fulfill their recall obligations for my vehicle in a timely and safe manner. Thank you for your time and help with this urgent matter. Sincerel [XXX] [XXX] om INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11673088
Mileage unknown · Apr 20, 2025
Engine
I was driving 65 miles per hour on the high way suddenly engine shutdown Leaving me without power I managed to get to the shoulder but I was parked on at very and area I almost was rear ending for the incoming traffic she to be afternoon a Conner spot end out call if 911 lucky for me state troopers arrived and parked behind me…
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I was driving 65 miles per hour on the high way suddenly engine shutdown Leaving me without power I managed to get to the shoulder but I was parked on at very and area I almost was rear ending for the incoming traffic she to be afternoon a Conner spot end out call if 911 lucky for me state troopers arrived and parked behind me until the town at truck arrived this was a very live treated situation
NHTSA ODI #11655717
Official recalls
2Apr 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.
Sep 12, 2024
General Motors, LLC (GM) is recalling certain 2023 Chevrolet Silverado 1500, GMC Sierra 1500, 2023-2024 Chevrolet Tahoe, Suburban, GMC Yukon, Yukon XL, Cadillac Escalade, and Escalade ESV vehicles. The electronic brake control module software may fail to display a warning light when a loss of brake fluid occurs. As such, these vehicles fail to comply with the requirements of Federal Vehicle Safety Standard number 135, "Light Vehicle Brake Systems."
Consequence & remedy
Consequence: Without a warning light, the vehicle may be driven with low brake fluid, which can reduce braking performance and increase the risk of a crash.
Remedy: The Electronic Brake Control Module (eBCM) software will be updated through an over-the-air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed October 25, 2024. Owners can contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N242447990.
Additional source detail variants (2)
Service Brakes, Hydraulic:power Assist:electric:control Module:software
General Motors, LLC (GM) is recalling certain 2023 Chevrolet Silverado 1500, GMC Sierra 1500, 2023-2024 Chevrolet Tahoe, Suburban, GMC Yukon, Yukon XL, Cadillac Escalade, and Escalade ESV vehicles. The electronic brake control module software may fail to display a warning light when a loss of brake fluid occurs. As such, these vehicles fail to comply with the requirements of Federal Vehicle Safety Standard number 135, "Light Vehicle Brake Systems."
Consequence: Without a warning light, the vehicle may be driven with low brake fluid, which can reduce braking performance and increase the risk of a crash.
Remedy: The Electronic Brake Control Module (eBCM) software will be updated through an over-the-air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed October 25, 2024. Owners can contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N242447990.
Service Brakes, Hydraulic:brake Fluid Low Warning: Lamp
General Motors, LLC (GM) is recalling certain 2023 Chevrolet Silverado 1500, GMC Sierra 1500, 2023-2024 Chevrolet Tahoe, Suburban, GMC Yukon, Yukon XL, Cadillac Escalade, and Escalade ESV vehicles. The electronic brake control module software may fail to display a warning light when a loss of brake fluid occurs. As such, these vehicles fail to comply with the requirements of Federal Vehicle Safety Standard number 135, "Light Vehicle Brake Systems."
Consequence: Without a warning light, the vehicle may be driven with low brake fluid, which can reduce braking performance and increase the risk of a crash.
Remedy: The Electronic Brake Control Module (eBCM) software will be updated through an over-the-air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed October 25, 2024. Owners can contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N242447990.
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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