NHTSA opens probe into nearly 1 million GM pickups, SUVs over engine failure concerns

The U.S. National Highway Traffic Safety Administration (NHTSA) has launched an enhanced investigation into approximately 1 million General Motors (GM) pickup trucks and SUVs due to engine failure concerns. This action follows a recall in 2025, where the company addressed engine issues in 2021-2024 model-year vehicles equipped with L87 engines.

The recall, initiated by GM citing supplier quality issues, resulted in nearly 600,000 vehicles being repaired or replaced. NHTSA has received around 7,000 complaints of engine failures in vehicles that underwent the recall, while another 191 reports exist for vehicles excluded from the recall. The investigation, classified as an engineering analysis, is a step towards potential expanded recalls or repairs.

GM has cooperated with NHTSA, reopening investigations into the issue since 2022 and recalling the vehicles after NHTSA's probe. GM has identified 12 crashes, 12 injuries, and 42 fire reports potentially linked to the engine failure issue, all of which were minor, according to the automaker.