Honda bulletin ONL6UP06012026
What it saysOwner Notification Letter - During manufacturing, improperly sized bolts may have been used to install the motor mount on the front electric drive transmission module. NHTSA’s full summary ↓
Honda filed this with NHTSA as a manufacturer communication dated Jun 1, 2026, received Jun 11, 2026, about the power train. It names 1 model year (2024). 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 - During manufacturing, improperly sized bolts may have been used to install the motor mount on the front electric drive transmission module. Improper bolts may cause damage to the drive unit case resulting in an oil leak.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| ONL6UP06012026 | Other | Jun 1, 2026 | 11033797 | 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 1 model year this bulletin names have filed 865 complaints with NHTSA since 2015. 156 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.
In depth: 2024 Honda Prologue transmission and drivetrain problems →
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 group2 other manufacturer communications filed against the Honda Prologue under the same component group (power train), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| A25-013 | Service bulletin | May 22, 2025 | Service Bulletin - During manufacturing, improperly sized bolts may have been used to install the motor mount on the front electric drive tr… |
| AEBM04252025901 | Other | Apr 25, 2025 | Dealer Message - During manufacturing, improperly sized bolts may have been used to install the motor mount on the front electric drive tran… |
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 ONL6UP06012026 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 ONL6UP06012026 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 ONL6UP06012026 cover?
The manufacturer filed it against 1 model year: 2024 Honda Prologue. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.