Infiniti bulletin ITB26-002
What it saysFUEL FILLER TUBE LOWER SEAL IS LEAKING AND DTC P0456 IS STORED IN THE ECM IF YOU CONFIRM The vehicle has a visible leak with a smoke machine test coming from the fuel filler tube lower seal, AND DTC P0456 is stored as… NHTSA’s full summary ↓
Infiniti filed this with NHTSA as a service bulletin dated Feb 2, 2026, received Feb 10, 2026, about the fuel/propulsion system. It names 7 model years (2022–2026). 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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationFUEL FILLER TUBE LOWER SEAL IS LEAKING AND DTC P0456 IS STORED IN THE ECM IF YOU CONFIRM The vehicle has a visible leak with a smoke machine test coming from the fuel filler tube lower seal, AND DTC P0456 is stored as “Active”, “Past”, or “Pending” in the ECM. ACTION 1. Remove the supplied funnel from the rear of the vehicle or trunk. 2. Insert the funnel completely in the fuel filler tube and remove completely five (5) times. 3. Re-check the fuel filler tube lower seal with a smoke machine to determine visually if any leak is present. 4. If the fuel filler lower seal continues to leak, replace the fuel filler tube. IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.
Trouble codes it names: P0456
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| ITB26-002 | Service bulletin | Feb 2, 2026 | 11028682 | PDF, 702 KB |
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 7 model years this bulletin names have filed 117 complaints with NHTSA since 2015. 8 of them name Fuel/Propulsion System — 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.
The contact owns a 2026 Infiniti QX80. The contact stated that after refueling the vehicle, there was an abnormally strong fuel and rotten egg odor inside the vehicle. The vehicle was taken to the dealer, but no cause for the failure was found. The failure persisted, causing the contact and her husband to become nauseous.
2026 Infiniti QX80 · Fuel/Propulsion System · filed with NHTSA Aug 19, 2026 · ODI 11758008
Pulling onto 55mph road from a stop, the car began to accelerate then lagged(felt like a pause/stall in acceleration) and then overcompensated with rapid acceleration. This has happened multiple times. The vehicle has also gotten stuck in a low gear when accelerating in auto mode.
2025 Infiniti QX60 · Fuel/Propulsion System · filed with NHTSA Jul 17, 2026 · ODI 11751044
This vehicle has ~43k miles and in the shop 3 times. Once I had computer issues and was replaced, and twice now to replace the fuel pump. First instance, I was at a stop sign and tried to accelerate but the car wouldn't move. It was like it was in neutral but was in drive.
2023 Infiniti QX60 · Fuel/Propulsion System · filed with NHTSA Jun 7, 2025 · ODI 11665476
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 fuel/propulsion system
Source: same model, same component group2 other manufacturer communications filed against these Infiniti models under the same component group (fuel/propulsion system), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| ITB26-002A | Service bulletin | May 1, 2026 | FUEL FILLER TUBE LOWER SEAL IS LEAKING AND DTC P0456 IS STORED IN THE ECM This bulletin is no longer active. Please discard previous version… |
| ITB25-014 | Service bulletin | Jan 7, 2026 | VENT CONTROL VALVE IN ACTIVE TEST INOPERATIVE IN CONSULT 4 SERVICE INFORMATION An issue in CONSULT 4 has been identified in “EVAP system clo… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Infiniti, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Infiniti ITB26-002 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 ITB26-002 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 ITB26-002 cover?
The manufacturer filed it against 7 model years: 2026 Infiniti QX60, 2025 Infiniti QX60, 2024 Infiniti QX60, 2023 Infiniti QX60, 2022 Infiniti QX60, 2026 Infiniti QX80 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.