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NHTSA investigations into General Motors vehicle defects

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2026-08-24 18:13 UTC → 2026-08-24 22:43 UTC · added removed

General Motors is facing multiple federal investigations by the National Highway Traffic Safety Administration (NHTSA) regarding significant mechanical and electronic component failures. An engineering analysis was has been launched into the L87 6.2-liter V8 engine, affecting nearly 1 million GM pickup trucks and SUVs from model years 2021 through 2026. This The probe focuses on the L87 6.2-liter V8 engine following reports that examines whether previous recalls failed recall remedies adequately addressed manufacturing defects, such as rod-bearing damage from sediment and out-of-specification crankshafts, which can lead to resolve engine failure risks. NHTSA noted that hundreds seizure or sudden loss of propulsion. While an initial recall covered approximately 597,630 vehicles, General Motors reported 6,953 complaints involved regarding failures even following the remedy, and NHTSA is investigating whether engines manufactured after vehicles received recall remedies, such as oil-viscosity changes or engine replacements. May 2024 are also affected. Simultaneously, the NHTSA has escalated an its investigation into the eBoost electronic brake-by-wire system, system to an engineering analysis, affecting more than 1.1 million vehicles. This includes electric models produced in alliance with Honda and Acura, as well as various internal combustion models like the Chevy Colorado and Colorado, GMC Canyon. Canyon, and various Buick models. While GM acknowledged a hardware flaw involving a metallic spindle susceptible to fracture, investigators are examining consumer reports of an immediate loss of brake assist while in motion, motion. Specifically, 2023 Cadillac Lyriq owners have reported ‘rock-hard’ brake pedals and ‘Brake System Failure’ warnings, which increases increase stopping distances. distances and contradict GM’s assertion that secondary safety systems remain functional until the vehicle stops.

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  1. 2026-08-24 22:43 UTC NHTSA investigations into General Motors vehicle defects
  2. 2026-08-24 18:13 UTC NHTSA investigations into General Motors vehicle defects

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