NHTSA closes recall query into 2015–2020 Acura and Honda vehicles: Engine failure
On November 8, 2024, the National Highway Traffic Safety Administration’s Office of Defects Investigation (ODI) opened a Recall Query (RQ24013) into 2015–2020 Acura and Honda vehicles, concerning the engine. A Recall Query examines an earlier recall, for example whether its repair works or whether it covers every affected vehicle. ODI closed the recall query on August 20, 2025.
- Action
- RQ24013 (Recall Query)
- Status
- Closed August 20, 2025
- Component
- Engine
- Listed
- 20 make/model/year entries in NHTSA’s file
Vehicles under investigation
| Makes | Acura, Honda |
|---|---|
| Models | MDX, Odyssey, Pilot, Ridgeline, TLX |
| Model years | 2015–2020 |
As listed in NHTSA’s investigation file. Not every vehicle of a listed model is necessarily affected.
What ODI says
On November 8, 2024, the Office of Defects Investigation (ODI) opened Recall Query RQ24013 to assess the scope of Honda recall 23V-751 after receiving complaints that alleged connecting rod bearing failures in vehicles that were not within the scope of recall 23V-751. In November 2023, Honda recalled 248,999 various Model Year (MY)2016–2020 Honda and Acura vehicles equipped with the 3.5L V6 engine. Honda recalled these vehicles due to a crankshaft manufacturing defect that caused premature connecting rod bearing wear and engine seizure. While the out-of-scope failures involved in these complaints appear to have a very similar failure mechanism as the recalled engines, a thorough analysis of all available data from Honda has not indicated that the same manufacturing defect exists in the out-of-scope engines as the engines recalled by 23V-751. Based on this analysis ODI has determined that Honda has properly defined the scope of recall 23V-751. Consequently, ODI will close this RQ investigation. NHTSA will continue to investigate these complaints of engine failure as part of a new Preliminary Evaluation Investigation (PE25008). The Agency reserves the right to take additional action if warranted by new circumstances.
Official summary by NHTSA’s Office of Defects Investigation for RQ24013, quoted in full (U.S. government work, public domain).
What owners have reported
Owners filed 9,246 complaints with NHTSA about the model years in this investigation, reporting 161 crashes, 67 fires, 181 injuries, 3 deaths. These are all complaints on file for those vehicles, about any problem, not only this one; complaints are unverified owner reports.
| Vehicle | Complaints | Crashes | Injuries | Deaths |
|---|---|---|---|---|
| 2016 MDX | 374 | 10 | 5 | 0 |
| 2017 MDX | 257 | 7 | 4 | 0 |
| 2018 MDX | 169 | 3 | 3 | 0 |
| 2019 MDX | 189 | 4 | 3 | 0 |
| 2020 MDX | 222 | 4 | 2 | 0 |
| 2018 Odyssey | 997 | 14 | 30 | 3 |
| 2019 Odyssey | 978 | 16 | 19 | 0 |
| 2020 Odyssey | 478 | 4 | 20 | 0 |
| 2015 Pilot | 109 | 7 | 13 | 0 |
| 2016 Pilot | 1,710 | 23 | 20 | 0 |
| 2017 Pilot | 930 | 9 | 6 | 0 |
| 2018 Pilot | 440 | 9 | 11 | 0 |
| 2019 Pilot | 909 | 13 | 15 | 0 |
| 2020 Pilot | 492 | 10 | 13 | 0 |
| 2017 Ridgeline | 343 | 3 | 1 | 0 |
| 2018 Ridgeline | 162 | 3 | 1 | 0 |
| 2019 Ridgeline | 237 | 8 | 9 | 0 |
| 2018 TLX | 95 | 3 | 2 | 0 |
| 2019 TLX | 92 | 7 | 3 | 0 |
| 2020 TLX | 63 | 4 | 1 | 0 |
Recalls and problems for these vehicles
Timeline
- ODI opens recall query RQ24013
- ODI closes RQ24013
What this means for owners
- ODI closes an investigation when a recall addresses the issue or when it does not find enough evidence to continue. NHTSA’s closing report gives the reason.
- Check your vehicle for open recalls with a free VIN recall check.
- Had this problem? File a complaint with NHTSA. Owner complaints are the evidence ODI uses to open and expand investigations.
Official record: search RQ24013 or your vehicle at NHTSA.gov/recalls, which lists investigations alongside recalls. Data: NHTSA ODI investigations file, updated daily. All NHTSA investigations.