Nissan bulletin EL25-009
Nissan filed this with NHTSA as a service bulletin dated Oct 2, 2025, received Oct 21, 2025, about the electrical system — 1 document under this number: NTB25-044. It names 1 model year (2026). A service bulletin 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.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationPROCESS FOR 12V BATTERY TESTING APPLIED VEHICLES: 2026 LEAF (ZE2) SERVICE INFORMATION Due to changes to the DC-DC control logic, 12V battery testing may take an extra 20 minutes or more. To perform a faster 12V battery test, the DC-DC deactivation process must be completed which deactivates the DC-DC power supply for 1 hour. The 12V battery must be diagnosed or removed within 1 hour or power supply may be restored unintentionally. The DC-DC deactivation process is in the Electronic Service Manual (ESM) under Precautions for Removing Battery Terminal. · Refer to the ESM: ELECTRICAL & POWER CONTROL > POWER SUPPLY, GROUND & CIRCUIT ELEMENTS > PRECAUTION > PRECAUTIONS FOR REMOVING BATTERY TERMINAL > Precautions for Removing Battery Terminal · If the 12V battery is not replaced after testing, verify the power switch has been pressed to cycle the ignition to ACC mode ON and then back to ACC mode OFF to re-enable the DC-DC system which maintains the 12V battery.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| NTB25-044 | Service bulletin | Oct 2, 2025 | 11024394 | not yet checked |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Nissan EL25-009 a recall?
No. A service bulletin 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 EL25-009 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.
Which vehicles does EL25-009 cover?
The manufacturer filed it against 1 model year: 2026 Nissan Leaf. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.