The National Highway Traffic Safety Administration (NHTSA) has launched an investigation into engine failures in approximately 1.4 million Honda and Acura vehicles produced from 2016 to 2020. The probe affects various models, including the Honda Pilot, Acura MDX, Honda Odyssey, and Acura TLX, as well as the Honda Ridgeline. The NHTSA has identified a possible cause of engine failure as failing connecting rod bearings in vehicles with 3.5-liter V6 engines, which can lead to total engine failure. This investigation follows a previous recall in November 2023 affecting 250,000 vehicles, but the NHTSA has received 173 complaints from owners who experienced connecting rod bearing failures in vehicles not included in that recall. Honda has acknowledged the investigation and has pledged to cooperate with the NHTSA to address the issue. The company previously identified a manufacturing defect in the engine crankshaft as a contributing factor to engine failure.
Honda faces investigation over 1.4M US vehicles amid reports of engine failures
