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Service bulletin ITB26-002

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11028682
Published by NHTSA2026-02-10
Manufacturer's numberITB26-002
Manufacturer's date2026-02-02
NHTSA componentFUEL/PROPULSION SYSTEM

NHTSA's summary

FUEL 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.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Trouble codes named

P0456

Vehicles listed
INFINITI QX602022, 2023, 2024, 2025, 2026
INFINITI QX802025, 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
ITB26-002A2026-05-30. Service bulletin. FUEL FILLER TUBE LOWER SEAL IS LEAKING AND DTC P0456 IS STORED IN THE ECM This bulletin is no longer active. Please discard previous versions of ITB26-002.
ITB25-0142026-02-10. Service bulletin. VENT CONTROL VALVE IN ACTIVE TEST INOPERATIVE IN CONSULT 4 SERVICE INFORMATION An issue in CONSULT 4 has been identified in “EVAP system close” in Work support. · After selecting the "EVAP system close" in Work support, the “VENT CONTROL/V” in Active test becomes non-functional temporarily. · When selecting “EVAP system close” operation in Work support, wait 10 minutes before starting “VENT CONTROL/V” Active test or cycle the IGN switch ON/OFF for “VENT CONTROL/V” Active test to be operational. HINT: This bulletin applies to model years that use CONSULT 4 only.
ITB22-0152022-06-03. Service bulletin. SERVICE INFORMATION FOR FUEL GAUGE INACCURATE WITH DTCS STORED IN ECM SERVICE INFORMATION If a fuel level sensor has been diagnosed as sending an incorrect level signal, and one or more of the following DTCs are stored in the ECM, do not replace the entire “Fuel Level Sensor Unit, Fuel Filter and Fuel Pump Assembly” (fuel pump assembly). The fuel level sensor can be replaced separately. • P0460 (FUEL LEV SEN SLOSH) • P0461 (FUEL LEVEL SENSOR) • P0462 (FUEL LEVL SEN/CIRC) • P0463 (FUEL LEVL SEN/CIRC) NOTE: Warranty claims referring to fuel level issues that result in the replacement of the entire fuel pump assembly will be charged back.
ITB13-044J2022-03-12. Service bulletin. EVAP LEAK DTC P0442, P0455, P0456 INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.