The National Highway Traffic Safety Administration (NHTSA) is investigating engine problems that may impact up to 1.4 million Honda and Acura vehicles sold in the U.S.
The affected models include the 2016–2020 Honda Pilot, the 2018–2020 Honda Odyssey, the 2016–2020 Acura MDX, the 2017–2019 Honda Ridgeline, and the 2018–2020 Acura TLX. All of these vehicles are equipped with Honda’s 3.5-liter V6 engine, which has been linked to reported incidents of sudden engine failure, the Associated Press reported.
At the center of the issue are small but critical components within the engine called connecting rod bearings.
These parts help transfer power smoothly within the engine, linking other key components and stabilizing the engine’s movements. When these rod bearings fail, the engine may stop running entirely, which can lead to a sudden and complete loss of power. Drivers affected by this issue have reported being left stranded, and the NHTSA has confirmed at least one crash related to the problem, though no injuries were noted.
This investigation follows a previous Honda recall in November 2023, which covered approximately 250,000 vehicles experiencing the same engine defect. In that recall, Honda stated that problems with the connecting rod bearings could lead to severe engine damage if left unaddressed.
However, complaints about similar engine failures have continued, with the NHTSA receiving at least 173 new reports from owners whose vehicles were not included in the 2023 recall.
For those affected, a connecting rod bearing failure often means their vehicle may fail without warning, posing a safety risk, particularly if the issue arises while the car is in motion. The NHTSA has opened a recall query to determine whether the defect is more widespread, with an expanded recall possibly needed to address the additional vehicles exhibiting the problem.
Honda has expressed its willingness to cooperate with the NHTSA as it investigates.
The automaker has previously acknowledged that the connecting rod bearing defect was the cause of more than 1,400 warranty claims, though it reported no injuries at the time of the 2023 recall. Honda’s cooperation may involve working with regulators to test additional vehicles to confirm whether the defect is limited to specific production runs or more widespread across model years and types.
Drivers are advised to remain alert for any signs of engine trouble, such as unusual sounds or vibrations, as these could signal issues with the engine bearings. However, in many cases, drivers may not receive any warning before the engine fails. The NHTSA’s ongoing evaluation will determine the scope and urgency of the issue, and Honda may provide guidance or updates to affected owners.
As the NHTSA proceeds with its inquiry, affected vehicle owners are encouraged to stay informed about the investigation’s findings. Updates on any potential recall expansion are expected, and Honda may issue new recommendations or repairs to ensure driver safety.
This article was written with the assistance of artificial intelligence.