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8 Engines Trigger NHTSA Investigation Into Nearly 1 Million SUVs, Pickup Trucks
Road & Track • • business
Key Points:
- The National Highway Traffic Safety Administration's Office of Defects Investigation (ODI) has launched an expanded engineering analysis into post-repair engine failures in GM vehicles with the 6.2-liter L87 V-8 engine, covering up to 997,743 vehicles.
- The investigation follows 499 consumer complaints of engine failures occurring after repairs mandated by Recall 25V-274, which addressed manufacturing and quality issues in 2021–2026 GM models such as Chevrolet Silverado, Suburban, Tahoe, Cadillac Escalade, and GMC Sierra and Yukon.
- GM's recall repair strategy involved either switching to a different oil viscosity or replacing the engine entirely, but 473 complaints reported failures after the oil change and 26 after engine replacement.
- Additionally, ODI received 191 complaints of L87 engine failures in vehicles not included in the original recall, and GM has reported a total of 6,953 post-repair engine failure complaints.
