A sweeping inquiry has been launched by federal transportation authorities into a substantial number of Honda and Acura vehicles, totaling approximately 1.4 million units. This investigation, spearheaded by the National Highway Traffic Safety Administration (NHTSA), focuses on critical engine malfunctions specifically linked to the 3.5-liter V6 SOHC VTEC powerplants. The decision to initiate this probe stems from a deluge of over 400 consumer complaints, detailing failures of the connecting rod bearings. These defects present considerable safety hazards, ranging from unexpected engine shutdowns to the alarming possibility of under-hood conflagrations. The current examination aims to ascertain the sufficiency of Honda’s prior recall efforts concerning similar engine anomalies, as the recurrence of these issues suggests that the root cause may not have been fully eradicated.
The current federal scrutiny follows an earlier recall by Honda in November 2023, which targeted roughly 249,000 vehicles. That recall addressed manufacturing flaws in crankshafts that could similarly precipitate engine failure or even lead to fires. However, despite these prior actions, the consistent influx of new complaints has prompted the NHTSA's Office of Defects Investigation (ODI) to re-evaluate the scope and effectiveness of previous resolutions. The ODI has specifically noted that the recent wave of engine failures appears to stem from causes distinct from the crankshaft defects identified in the earlier recall, even though the symptoms are strikingly similar. This has raised concerns about the broader reliability of the affected engine models and the adequacy of Honda's previous corrective measures.
Affected models under this expanded investigation include a range of popular vehicles: the 2016-2020 Honda Pilot, 2018-2020 Honda Odyssey, 2016-2020 Acura MDX, 2018-2020 Acura TLX, and 2017-2019 Honda Ridgeline. The reported failures of the connecting rod bearings can result in catastrophic engine damage. Honda has acknowledged the ongoing probe, stating its commitment to safety and its continued cooperation with NHTSA throughout the evaluation process. The company's previous stance of denying warranty coverage for 173 complaints with symptoms mirroring those of the original recall highlights the potential for a significant expansion of affected vehicles, underscoring the severity of this issue for a broad segment of their customer base in the United States.
For owners of these Honda and Acura vehicles, proactive measures are advised beyond the standard warranty protections. Filing a detailed complaint with the NHTSA can contribute vital information to the ongoing investigation, strengthening the case for a more comprehensive recall. Owners should consult the official recall website to determine if their vehicle is specifically identified and diligently record any unusual engine behaviors, such as unfamiliar noises, rough idling, or diminished performance. The potential for class-action litigation looms, which could offer additional avenues for recompense for those impacted. This federal inquiry is a pivotal moment for Honda, as its brand's longstanding reputation for dependability faces considerable challenges, prompting vehicle owners to remain vigilant and informed.