Millions Of Hondas Could Have Faulty Engines

Michael Accardi
by Michael Accardi

The National Highway Traffic Safety Administration (NHTSA) has launched a new investigation into more than 1.4 million Honda and Acura vehicles in the United States after hundreds of reports of engine failures tied to the automaker's popular 3.5-liter V6.

Key Points

  • NHTSA has opened a new investigation into 1.4 million Honda and Acura vehicles after 414 reports of engine failures linked to connecting rod bearing defects.
  • Models under review include the Acura TLX and MDX, Honda Pilot, Odyssey, and Ridgeline equipped with the 3.5-liter V6 engine from 2016–2020.
  • The probe follows a 2023 recall of 249,000 vehicles for related crankshaft issues and could lead to expanded recalls if the defect proves more widespread.

According to NHTSA documents, the regulator received 414 complaints of connecting rod bearing failures that, in some cases, led to complete engine shutdown. The new probe covers a wide range of models: the 2018–2020 Acura TLX, 2016–2020 Acura MDX, 2016–2020 Honda Pilot, 2018–2020 Honda Odyssey, and 2017–2019 Honda Ridgeline.


The new investigation follows a 2023 recall of roughly 249,000 Honda vehicles for a similar crankshaft defect that could also cause bearing wear and seizure. At that time, NHTSA looked into 1.4 million vehicles but closed the case after Honda’s recall.

NHTSA did say the new evidence gathered as part of the probe suggests Honda is dealing with a different issue affecting crankshaft-related durability. But with the failure reports mounting outside the previous recall's scope, the agency says it needs to “more thoroughly evaluate the scope and severity of the potential issue” and determine if a further recall is necessary."


So far, Honda has not issued new recall notices related to the latest investigation.


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Michael Accardi
Michael Accardi

An experienced automotive storyteller and accomplished photographer known for engaging and insightful content. Michael also brings a wealth of technical knowledge—he was part of the Ford GT program at Multimatic, oversaw a fleet of Audi TCR race cars, ziptied Lamborghini Super Trofeo cars back together, been over the wall during the Rolex 24, and worked in the intense world of IndyCar.

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  • Ige82505425 Ige82505425 on Aug 28, 2025

    5,000 to 10,000 mile or changes are a bad idea...just say'in.

  • Dav82321048 Dav82321048 on Aug 28, 2025

    Dang, sorry to see Honda going down the tubes. I've owned 6 or 7 Honda's, but the bulk of them were built in Japan and pretty much bullet proof.

    Are the Hondas that are experiencing the failures built and assembled in North America?

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