General Motors' 6.2-liter L87 V8 engines

The National Highway Traffic Safety Administration is increasing its investigation into General Motors' 6.2-liter L87 V8 engines in the U.S. after receiving additional complaints of engine bearing failures in vehicles that fall outside the scope of the recall issued earlier this year.

1. NHTSA Investigation

Key Points

• NHTSA has escalated its probe into 286,000 GM vehicles equipped with the 6.2-liter L87 V8 engine after receiving over 1,100 reports of engine bearing failures, even after an earlier recall.
• The issue impacts Chevrolet Silverado and GMC Sierra 1500, as well as Chevy Suburban and Tahoe, GMC Yukon/Yukon XL, and Cadillac Escalade models built between 2019 and 2024.
• NHTSA's new Engineering Analysis aims to determine if GM's prior recall failed to capture all affected vehicles, as hundreds of failures have been reported outside the original recall scope.

Common mechanical problems and owner complaints for GM vehicles (2020–present), with a focus on GMC Yukon Denali engines and transmissions, center on the 6.2L V8 (L87, standard in Denali trims) and automatic transmissions. These issues affect the broader GM full-size lineup (e.g., Chevrolet Tahoe/Suburban, Cadillac Escalade, GMC Sierra/Silverado) due to shared powertrains and platforms. Data comes from NHTSA complaints, recalls, Consumer Reports, owner forums, and lemon law sites. Problems often appear post-warranty (around 50,000–100,000) 

2. Legal Remedies 

Several types of claims are possible.  There is a legal doctrine called the Implied Warranty of Merchantability, saying goods sold should be reasonably fit for their intended purposes.  A violation can entitle the owner to damages. GM provided an express warranty requiring it to fix the vehicle within a reasonable time period.  Note that while many owners may be attracted by the recall, in many circumstances a recall may not be admitted to show liability for fear that owners would refrain from taking such action.  Finally, if there is concealment or deception, consumer fraud or deceptive practice laws may protect the consumer.    



CALL FOR A FREE CONSULTATION ABOUT COMPENSATION FOR VEHICLE PROBLEMS