The U.S. National Highway Traffic Safety Administration opened a recall query into 597,571 General Motors vehicles after identifying a defect in the L87 6.2‑liter V8 engine that can cause a bearing failure, leading to engine seizure or a connecting‑rod breach of the block and sudden loss of motive power.
The query follows a 2025 recall of nearly 600,000 U.S. vehicles for similar failures and an October 2025 expanded investigation covering 286,000 additional vehicles. It was triggered by 36 vehicle‑owner questionnaires alleging engine failures after the prior recall remedy was applied.
The defect involves manufacturing flaws in the connecting rod and/or crankshaft components of the L87 engine, which powers popular GM trucks and SUVs such as the Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Tahoe, Suburban, GMC Yukon, and Cadillac Escalade. The failure can result in a sudden loss of power and increased crash risk.
GM has not yet issued a formal recall; the NHTSA is gathering data to determine whether a recall or corrective action is required. The ongoing investigation signals that the initial fix may not have addressed all affected vehicles, potentially increasing warranty costs and impacting brand reputation.
The recall query underscores the NHTSA’s commitment to vehicle safety and may prompt GM to expand its repair program, affecting its financials through additional warranty expenses and potential future recalls.
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