NHTSA Investigates 1.4 Million Honda & Acura V-6 Engines Over Rod Bearing Failures

What’s the Issue

The U.S. National Highway Traffic Safety Administration (NHTSA) has launched a preliminary investigation into over 1.4 million Honda and Acura vehicles equipped with 3.5‑liter J‑series V‑6 engines (J35) due to connecting rod bearing failures. The inquiry targets several popular models including:

• 2018–2020 Acura TLX

• 2016–2020 Acura MDX

• 2016–2020 Honda Pilot

• 2018–2020 Honda Odyssey

• 2017–2019 Honda Ridgeline

This investigation is separate from a 2023 recall addressing a crankshaft-related defect. Despite that earlier recall, engine failures have continued—prompting NHTSA to expand its review to include vehicles outside the original scope. Reports include 414 consumer complaints and 2,598 manufacturer warranty claims, some describing engine failures at surprisingly low mileages and even pre-failure stalling and fires.

Why It Matters Legally & for Safety

• Severe Safety Risk
  A failed connecting rod bearing can lead to total engine failure—possibly causing sudden power loss while driving, increasing the risk of accidents.

• Incomplete Remedy?
  Since these failures involve vehicles not covered by the 2023 recall, owners may still be at risk—even if their vehicle has been officially "repaired."

• California Owners’ Consumer Protections
  Even absent a formal recall, persistent or dangerous mechanical defects may provide grounds for claims under California’s Lemon Law or Unfair Competition Law—especially when a manufacturer has been notified and repairs were not completed effectively.

Recommended Actions for Vehicle Owners

1. Check Your Vehicle’s Status
   Enter your VIN into the NHTSA recalls portal periodically to stay updated on expansion of the recall or new investigations.

2. Watch for Warning Signs
   Be alert to engine noises, warning lights, stalling, or loss of power—especially in affected vehicle models.

3. Document Everything
   Record all communications, service visits, symptoms, and any inconvenience or safety risks experienced.

4. Seek Legal Guidance if Necessary
   If your vehicle continues to malfunction—or if repairs are delayed or ineffective—you may have legal protections under California consumer law.

Contact Us!

If you own one of the affected Honda or Acura models in California and are concerned about potential engine failure or your legal protections, you don’t have to navigate this alone.

Contact Valero Law, APC at (424) 299-4447, or submit our free Lemon Law case review form to explore your rights and options.