Honda bulletin ONL6T806032025 Honda Lett
What it saysOwner Notification Letter - Under certain circumstances, the torque converter lock-up clutch cannot provide adequate holding force due to pressure bleeding down through a crack in the lock-up piston. NHTSA’s full summary ↓
Honda filed this with NHTSA as a manufacturer communication dated Jun 4, 2025, received Jul 1, 2025, about the power train. It names 2 model years (2017). A manufacturer communication is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationOwner Notification Letter - Under certain circumstances, the torque converter lock-up clutch cannot provide adequate holding force due to pressure bleeding down through a crack in the lock-up piston. The reduced lock-up clutch capacity results in the transmission indicator flashing “D” and sets DTC P0741 Torque Converter Clutch Circuit Performance or Stuck Off.
Trouble codes it names: P0741
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| ONL6T806032025 Honda Lett | Other | Jun 4, 2025 | 11019898 | not found |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 2 model years this bulletin names have filed 624 complaints with NHTSA since 2015. 7 of them name Power Train — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
On the 2017 Honda Accord, the 16 owners who gave an odometer reading for Power Train reported it at a median of 19,627 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
I own a 2017 Honda Odyssey that is currently covered under an extended warranty related to the torque converter, specifically addressing Diagnostic Trouble Code (DTC) P0741. I experienced symptoms twice—once in January 2025 and again in May 2025—using an OBD-II scanner.
2017 Honda Odyssey · Power Train · filed with NHTSA Jul 8, 2025 · ODI 11671987
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the power train
Source: same model, same component group8 other manufacturer communications filed against these Honda models under the same component group (power train), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| A26-025 | Service bulletin | Apr 21, 2026 | Service Bulletin - The current Power Control Unit (PCU) Radiator Guard does not provide adequate protection. Roadway debris can cause damage… |
| AEBM04032026903 | Other | Apr 4, 2026 | Dealer Message - The current radiator guard does not provide adequate protection. Roadway debris can cause damage to the Power Control Unit… |
| ONL6T806032025 Odyssey Le | Other | Jun 4, 2025 | Owner Notification Letter - Under certain circumstances, the torque converter lock-up clutch cannot provide adequate holding force due to pr… |
| ONL6T806032025 Honda Form | Other | Jun 4, 2025 | Owner Notification Letter - Under certain circumstances, the torque converter lock-up clutch cannot provide adequate holding force due to pr… |
| ONL6T806032025 Accord Let | Other | Jun 4, 2025 | Owner Notification Letter - Under certain circumstances, the torque converter lock-up clutch cannot provide adequate holding force due to pr… |
| A25-025 v1 | Service bulletin | Feb 14, 2025 | Service Bulletin - Multiple warning lights on and the vehicle may go into fail-safe mode; DTC P060A Powertrain Control Module (PCM) Internal… |
| ONL6VP02192024_2 | Service bulletin | Feb 19, 2024 | Owner Notification Letter - The driven pulley in the transmission (CVT) was not properly hardened due to improper heat treatment during the… |
| A18-072 | Service bulletin | Oct 15, 2019 | Service Bulletin - When cold-starting the engine and shifting to Reverse, the engine stalls in the first 10 to 14 seconds. There is too much… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Honda, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Honda ONL6T806032025 Honda Lett a recall?
No. A manufacturer communication is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the ONL6T806032025 Honda Lett repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Honda warranty extension on file lists the ones Honda has filed.
Which vehicles does ONL6T806032025 Honda Lett cover?
The manufacturer filed it against 2 model years: 2017 Honda Accord, 2017 Honda Odyssey. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.