The contact's husband owns a 2021 Honda Ridgeline. The contact stated that while her husband was driving 55 MPH, the vehicle went into LIMP Mode and made an abnormal knocking sound. The check engine warning light was illuminated. The driver was able to pull over to the side of the road. The vehicle was towed to the dealer, where the timing belt, the water pump, and the tensioner pulley were replaced; however, the knocking sound persisted. The dealer determined that the lower bearing had failed, and the dealer recommended replacing the engine with a used engine. Additionally, the contact was advised that the oil pump was leaking and might need to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was filed. The manufacturer requested the vehicle service records. The contact related the failure to NHTSA Action Number: EA25004 (Engine and Engine Cooling). The failure mileage was approximately 102,000.

- England, AR, USA

The contact owns a 2021 Honda Ridgeline. The contact stated that while at a stoplight, the Auto START/STOP feature malfunctioned, and after releasing the brake pedal, the engine failed to automatically restart as designed. After shifting back to park(P), the vehicle restarted and operated as normal. The cause of the failure was not yet been determined. The local dealer was notified of the failure. The manufacturer was not yet contacted. The contact was informed of the NHTSA Action Number: EA25004 (ENGINE AND ENGINE COOLING). The contact stated that the vehicle had experienced the failure listed in the investigation. The failure mileage was 50,500. The VIN was not available.

- Lawrenceburg, KY, USA

The contact owns a 2021 Honda Ridgeline. The contact stated that while driving approximately 30 MPH, there was a knocking sound coming from the engine compartment while accelerating and there was a loud popping sound coming from the engine compartment shortly afterwards. The low oil level warning light was illuminated. The vehicle was towed to Firestone and was diagnosed with engine failure. The vehicle had not been repaired by Firestone but was instead towed to the dealer. The vehicle was diagnosed, and the contact was informed that the connecting rods had disconnected, causing engine failure. The contact was informed that the engine needed to be replaced. The dealer informed the contact that the repair was not covered under warranty due to the low oil levels. The contact confirmed that the low oil level warning light occurred during the failure. The vehicle had not been repaired. The manufacturer was made aware of the failure and opened a case regarding the failure. The failure mileage was 52,000.

- Leander, TX, USA