I am sending this report in regards to investigation PE25001. I own a 2024 Silverado 6.2L, purchased on 8/30/24. On 12/27/24, I noticed a odd noise coming from the exhaust and took the truck to the dealership. After a week of trouble shooting, the dealership with the help of technicians from Chevrolet, discovered the crankshaft …
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I am sending this report in regards to investigation PE25001. I own a 2024 Silverado 6.2L, purchased on 8/30/24. On 12/27/24, I noticed a odd noise coming from the exhaust and took the truck to the dealership. After a week of trouble shooting, the dealership with the help of technicians from Chevrolet, discovered the crankshaft play was 3 times out of limits causing the exhaust to rattle and determined that engine would have to be replaced.
NHTSA ODI #11637000
Mileage unknown · Jan 20, 2025
EnginePower Train
I purchased a new 2024 Chevrolet Silverado 1500 4wd in May 2024 from a Chevrolet Dealer in East Tennessee, after having the truck for 5 months, it started experiencing a transmission "shutter / vibration" at higher speeds, it has also experienced a transmission "hard downshift" at times... a month later at only 4914 miles, it wa…
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I purchased a new 2024 Chevrolet Silverado 1500 4wd in May 2024 from a Chevrolet Dealer in East Tennessee, after having the truck for 5 months, it started experiencing a transmission "shutter / vibration" at higher speeds, it has also experienced a transmission "hard downshift" at times... a month later at only 4914 miles, it was dropped off at the chevrolet dealership here in my home state of Alabama for its first oil change and for them to check what is going on with the transmission, after the truck being there for 3 weeks, we were told that the transmission needed to come out for repairs, we advised the dealership and several GM representatives that we wanted a brand new transmission put in the truck that is brand new to start with, GM has refused and stated that they were going just rebuild the transmission.... we told them "No" and that we had bought a brand new truck, therefore it should have a new transmission, not a rebuilt one in a brand new truck with less than 5000 miles on it.... the truck has been out of our possession starting into its 3rd month being gone for repairs, not only is this a huge inconvenience for us, but its also a huge safety issue because we do occasionally pull trailers with this truck... General Motors has flat refused any help to our satisfaction with this transmission issue and has just pretty just blown us off and told us "No" when we have approached them with any kind of remedies for this situation, its pretty bad when a company that has taken a government bailout a few years ago, hasnt learned anything from their past mistakes and now think theyre untouchable.... it also pretty bad when you spend in excess of $60,000 for a pickup truck that you dont even have in your possession because of defective manufacturing.... yes, it is a safety issue even more because my family is sometimes using this truck and may not always react the same way that I would if something happened going down the road.... it needs a recall on these trucks
NHTSA ODI #11636993
Mileage unknown · Jan 18, 2025
Engine
The 6.2L engine suffered lifter failure while the vehicle was in motion on the highway. This was after 5 months of ownership and only 2,800 miles on a new 2024 Silverado. The vehicle months prior to the failure emitted a chirping sound like a loose fan belt. Dealer stated it was valve noise. It got louder prior to failure. The …
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The 6.2L engine suffered lifter failure while the vehicle was in motion on the highway. This was after 5 months of ownership and only 2,800 miles on a new 2024 Silverado. The vehicle months prior to the failure emitted a chirping sound like a loose fan belt. Dealer stated it was valve noise. It got louder prior to failure. The dealer repaired the engine and replaced all 8 cylinder lifters. Now the same noise is back.
NHTSA ODI #11636803
Mileage unknown · Jan 18, 2025
Engine
Vehicle spun a bearing in the lower part of the engine after 1147 miles of use.
NHTSA ODI #11636703
8,840 miles · Jan 7, 2025
EngineFuel System, Gasoline
The contact owns a 2024 Chevrolet Silverado 1500. The contact stated while driving 60 MPH, the vehicle began jerking and sputtering and then stalled. The engine turned over, but the vehicle failed to start. The vehicle was towed to the local dealer, where it was diagnosed and determined that the fuel pump module needed to be rep…
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The contact owns a 2024 Chevrolet Silverado 1500. The contact stated while driving 60 MPH, the vehicle began jerking and sputtering and then stalled. The engine turned over, but the vehicle failed to start. The vehicle was towed to the local dealer, where it was diagnosed and determined that the fuel pump module needed to be replaced. The vehicle was repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline. The failure mileage was approximately 8,840.
NHTSA ODI #11634578
Mileage unknown · Dec 30, 2024
EnginePower Train
Blown transmission valve body at 8000 total miles. Truck went into limp mode and will not reverse. Can not be safely driven. Has been sitting at dealership for 2 months now waiting for parts from GM. National backorder no ETA.
NHTSA ODI #11633270
Mileage unknown · Dec 19, 2024
EngineUnknown Or Other
Every time I tow my travel trailer within 150 miles or so I will get a message that the Diesel Exhaust fluid (DEF)is low and needs to be filled soon. Within 50 miles of that happening I will get the message that the DEF is low and will be speed limited in 500 miles. When I stop and fill the DEF fluid it only takes about 2.5 gall…
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Every time I tow my travel trailer within 150 miles or so I will get a message that the Diesel Exhaust fluid (DEF)is low and needs to be filled soon. Within 50 miles of that happening I will get the message that the DEF is low and will be speed limited in 500 miles. When I stop and fill the DEF fluid it only takes about 2.5 gallons which isn't even halfway empty. When the Speed Limited to 65 in xxx miles warning comes on you are unable to view any other safety related information such as tire pressure or temperatures. I took my truck to Classic Chevrolet in Grapevine, TX. in September and they kept a 6 month old truck for 23 days. They said there is an issue with the DEF software algorithm while towing and they don't have a fix. They have a technical service bulletin that tells them to instruct customers not to add DEF until they get the Speed Limited in xxx miles . In other words don't fill it up when it says it's empty. The DEF system is a government requirement and the manufacturer should be required to ensure that their system is accurate and working under all driving conditions.
NHTSA ODI #11631688
Mileage unknown · Dec 18, 2024
Engine
blown valve body , i bought the truck less than 6 months ago
NHTSA ODI #11631387
Mileage unknown · Nov 24, 2024
Electrical SystemEngineFuel/propulsion System
I was taking a left from a stop sign onto a busy boulevard and as soon as I had passed the median I started losing acceleration and it felt like the transmission or engine was glitching or lugging. The engine began to try restarting itself possibly from the auto start-stop however I was now almost at a dead stop in the left hand…
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I was taking a left from a stop sign onto a busy boulevard and as soon as I had passed the median I started losing acceleration and it felt like the transmission or engine was glitching or lugging. The engine began to try restarting itself possibly from the auto start-stop however I was now almost at a dead stop in the left hand lane in the dark. I promptly attempted to turn my hazards on, but they would not turn on while it was trying to start so I held the brake pedal down for light. I tried to turn the truck off and turn it back on however the hazards still did not work, none of the gauges went off when the truck was turned off, IE gas and voltage gauges were stuck. After attempting to put it into park and drive a few times I was finally able to turn the truck off, open the door and close it. At this point I was finally able to get the hazards turned on, however, it seemed like they would not stay on when the truck was trying to start so I could get out of the left hand lane. Fortunately someone stopped and we were able to push the truck off onto the median. After about a dozen attempts, the truck finally started, with the last attempt pumping the gas repeatedly for about twenty seconds. I drove hit for another twenty minutes and it drove okay with the engine light on. Onstar diagnostics mentioned possible fuel pump relay. I will note I did test drive a same year GMC equivalent model, and as the dealer went to gas it up, it would not start again. It ended up being the fuel pump relay.
NHTSA ODI #11627123
Mileage unknown · Oct 18, 2024
Engine
Fuel system failed and cause damage to the engine. Failure of motor can cause loss of power steering and brakes. Dealership confirmed that a fuel injector made contact with piston and deposited debris into the motor. No warning lights of error codes prior to event.
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.
OEM Systems, LLC (OEM) is recalling certain 2024 Chevrolet Silverado vehicles. The rear bumper mounting bracket may not be sufficient for towing, which can allow the towed trailer to detach from the vehicle.
Consequence & remedy
Consequence: A trailer that detaches from a vehicle while driving increases the risk of a crash.
Remedy: OEM will replace the rear bumper mounting bracket and hitch, free of charge. Owner notification letters are expected to be mailed in August 2024. Owners may contact OEM customer service at 1-800-810-7252.
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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