2019 Chevrolet Silverado 1500

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

On January 16, 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.

vehicle has been to the dealership many times for issues with the engine and burning oil, we have brought it in to chevy wallace dealer for all this and have paperwork for all this, however torque convertor has been replaced 2x in one year due to faulty parts. the dealeership finally told us that the afm lifters cause the engine to go and needed a engine replacement. my wife has been so upset over this matter because she loved the truck. all this has been inspected by dealer so many times and we kept geting the run around. we had multiple check engine lights and misfire codes. then the last straw was when the engine had a horrible knocking noise which we have on video.now that she traded the truck in because dealer said it was not covered under warranty because it lapsed by 1 month we had to get a different vheicle due to knowbody helping us and now were screwed with a insane payment. we have been dealing with this for a few years and no help from chevy even with a extended warranty that covered it all. i am not asking for the world but chevy has to be responible for something. my wife really needs help with this we lost a damn nice truck and want some kind of compinsation for it

NHTSA ID

11766305

Incident

Aug 11, 2023

Out of specs crankshaft machining, excessive journaling chamfering & debri in the oil galleries have caused rod bearing failure resulting in total engine seizure. This is consistent with the NHTSA 25V-274 recall, of which identifies the 6.2L V8-L87 engine as defective, resulting in 12 recorded accidents. However, this recall does not cover the 2019 model year.

NHTSA ID

11766186

Incident

Mar 27, 2026

The contact owns a 2019 Chevrolet Silverado 1500. The contact stated that while hauling a camper and driving approximately 60 MPH, the vehicle lost automotive power while the accelerator pedal was depressed. The vehicle was towed to a local independent mechanic, where it was diagnosed with a rod bearing failure due to a possible collapse lifter. The local dealer was contacted. Upon further investigation, the contact associated the failure with GM Service Bulletins: 19-NA-218 and PIP5776C with contributing factors to the failure. The manufacturer was made aware of the failure. The failure mileage was approximately 90,000.

NHTSA ID

11766147

Incident

Sep 20, 2026

Mileage

90,000 mi

My head, my transmission in my Silverado 1500 6 speed has had rough shifting since I bought it had 29,000 miles on it. It also has been looked at for the rough and they said it was normal now at 100,000 miles by train ships out of gear while driving and coming to an idle at random spots, took it into a train shop Westland transmission. They said I need all new transmission which I think this should've been fixed a long time ago with the rough shifting the recall and lawsuit needs to add the six speed trans to the eight speed intense speed that GM is officially getting served on.

NHTSA ID

11765482

Incident

Aug 26, 2026

The contact owns a 2019 Chevrolet Silverado 1500. While driving at an undisclosed speed, the low engine oil warning light illuminated. A month later, while driving 60 MPH, the transmission malfunctioned between 4th and 5th gear, either missing shifts or shifting erratically, accompanied by a severe vibration. The vehicle was taken to a local dealer, where technicians discovered a leaking engine oil cooling line while preparing to repair the transmission. The dealer confirmed the failure. The manufacturer was notified of the failure; however, the contact was informed that the VIN was excluded from Customer Satisfaction Program: N192220080.

NHTSA ID

11764733

Incident

Sep 16, 2026

V8Component Affected: Electrical System / Power Train (Transmission) / Engine Cooling & WiringDescription of the Safety Defect and Incident:While operating the vehicle, severe electrical degradation occurred due to a catastrophic failure of the factory body-to-chassis grounding system. Upon professional inspection by a certified mechanic, it was discovered that the primary ground wires had suffered extreme thermal degradation, with the mechanic stating that the wiring components "almost melted in his hands" upon physical touch.Because the vehicle's manufacturing-defective ground strap severely corroded and failed, the high-amperage electrical current redirected itself along an unintended path of least resistance: directly through the transmission shifting cables and internal wiring harnesses. This extreme electrical bypass caused extensive thermal damage, melted critical electrical insulation, and permanently fried the Transmission Control Module (TCM) and internal transmission components, causing total mechanical failure.Why this is a Critical Safety Hazard:Fire & Thermal Risk: The failure created an active thermal event under the hood. Electrical current reaching temperatures high enough to melt heavy-duty wiring harnesses poses an immediate vehicle fire risk while operating or parked.Sudden Loss of Propulsion: The electrical short directly compromises transmission communication, risking an uncommanded shift into neutral or total loss of motive power while driving at highway speeds, creating a severe crash hazard.Manufacturer Action / Request for Investigation:General Motors recently issued Customer Satisfaction Program #N252515590 specifically to address this exact "body-to-chassis ground strap corrosion" defect on 2019–2024 Silverados.

NHTSA ID

11764624

Incident

Sep 9, 2026

Came off the parkway and came to a stop at a stop sign. As I attempted to accelerate forward the truck shuttered violently, did not move forward and then slammed into gear. As it slammed into gear it jerked forward. The force of the jerk pushed me back in the seat and caused the steering wheel to turn. About 100 yards later I came to a stop in traffic. As I attempted to accelerate the same incident occurred again. After the second incident anytime I same to a stop and attempted to accelerate forward the shutter was no longer present but the truck would not move at first and would then slam into gear and jerk violently. This would occur in drive and reverse. I brought it to the dealership and they diagnosed that it needed a transmission. The service writer even told me it bucked so hard while the technician was moving it that it almost put him through the steering wheel. The truck is currently having the transmission replaced at Greenbrook GMC. Estimated repair cost is $9400 plus taxes and fees. Can provide invoice and bill once repair is completed.

NHTSA ID

11763239

Incident

Sep 1, 2026

While Driving I feel shaking while accelerating between 25-40 mph, and its like I'm driving over rumble strips, plus when stopped and start to accelerate it hesitates and then surges forward.

NHTSA ID

11763112

Incident

Mar 25, 2026

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

This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. The torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-NA-148 before requesting a part through PQC.

This Preliminary information communicates an issue where an aftermarket autostop device or rear taillights is causing a dead battery.

This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. The torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-NA-148 before requesting a part through PQC.

This PI provides information to repair the door water deflector which is not sealed properly allows water into the door jam/sill area.

This PI provides diagnostic tips for diagnosing electric trailer brakes issues.