On January 16, 2025, the National Highway Traffic Safety Administration (NHTSA) launched an investigation into General Motors (GM) over engine failures in certain full-size trucks and SUVs. The probe focuses on the 6.2L V8 L87 engine, affecting Chevrolet, GMC, and Cadillac vehicles from the 2019-2024 model years. The NHTSA estimates that approximately 877,710 vehicles are involved.
Failure or malfunction of the engine results in loss of motive power of the vehicle, which may lead to an increased risk of a crash resulting in injury and/or property damage.
The 6.2L V8 L87 engine debuted in the 2019 Chevy Silverado 1500 and 2019 GMC Sierra 1500 with the launch of the T1 generation of these trucks. This engine was later adopted by GM’s T1-based SUVs, which received it with their 2021 redesigns. The General Motors models listed below may be affected by the investigation:
Year | Make & Model |
2019-2024 | Chevrolet Silverado 1500 |
2019-2024 | GMC Sierra 1500 |
2021-2024 | Chevrolet Tahoe |
2021-2024 | Chevrolet Suburban |
2021-2024 | GMC Yukon |
2021-2024 | Cadillac Escalade |
According to the report, the Office of Defects Investigation (ODI) has received 39 complaints along with several Early Warning Reporting (EWR) Field Reports regarding engine failures in General Motors (GM) vehicles equipped with the L87 V8 engine. Affected models include the 2019-2024 Chevrolet Silverado 1500, 2019-2024 GMC Sierra 1500, 2021-2024 Chevrolet Tahoe, 2021-2024 Chevrolet Suburban, 2021-2024 GMC Yukon, and 2021-2024 Cadillac Escalade. The complaints describe bearing failures that can lead to engine seizure or cause the connecting rod to breach the engine block. According to the complainants, there are no detectable signs of failure prior to the event.
NHTSA investigates safety-related defects in vehicles and vehicle equipment, aiming to identify and address potential issues. The agency receives information about possible defects from various sources, including manufacturers, consumers, law enforcement, the media, and online platforms. NHTSA reviews all available data to evaluate the frequency and severity of potential safety risks using a risk-based approach. If NHTSA identifies a trend of safety-related defects, it may initiate an investigation to assess whether the defect poses an unreasonable safety risk, potentially leading to a manufacturer recall.
ODI RESUME
Investigation: | PE25001 |
Prompted By: | VOQ and Early Warning Reporting Field Report Review |
Date Opened: | 1/16/2025 |
Investigator: | Steve Perry |
Reviewer: | Sharon Yukevich |
Manufacturer: | General Motors, LLC |
Products: | 2019-2024 Chevrolet Silverado 1500 2021-2024 Chevrolet Tahoe 2021- 2024 Chevrolet Suburban 2019-2024 GMC Sierra 1500 2021-2024 GMC Yukon 2021-2024 GMC Yukon XL 2021-2024 Cadillac Escalade 2021-2024 Cadillac Escalade ESV |
Population: | 877,710 (Estimated) |
Problem Description: | Engine failure resulting from connecting rod bearing failure |
If you’ve recently bought a GM vehicle that turned out to be a lemon, you may feel uncertain about what to do next. That’s where our GM Lemon Law attorneys at Auto Lemon Lawyer can help. Although the details may differ from state to state, consumer rights are typically consistent across the country. Auto Lemon Lawyer is here to guide you through your options for compensation, vehicle buybacks, and more. Request a free case evaluation!

Over the past 30 years, I have been devoted to standing up for consumers, tackling intricate class action consumer litigations, handling complex multi-district cases, and recovering millions of dollars for my Lemon Law clients. Being admitted in District Courts in Louisiana, Texas, California, Michigan, Florida, and Indiana, my practice has led me to represent clients all over the United States in my Lemon Law cases. Regardless of your location, my firm is committed to offering the highest level of professional support, especially in Lemon Law.