Service bulletin ITB19-026a

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)
Type	Service bulletin
NHTSA id	10169964
Published by NHTSA	2020-01-08
Manufacturer's number	ITB19-026a
Manufacturer's date	2019-12-18
NHTSA component	FUEL SYSTEM, GASOLINE

NHTSA's summary

2019 QX50; FUEL ODOR INSIDE VEHICLE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.

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

Vehicles listed
INFINITI QX50	2019

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
ITB22-015	2022-06-03. 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.
ITB21-020A	2022-05-20. Service bulletin. FUEL AND/OR OIL SMELL IS PRESENT WHEN THE VEHICLE IS PARKED IN A CLOSED GARAGE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB13-044J	2022-03-12. 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.
ITB21-020	2021-10-13. Service bulletin. FUEL AND/OR OIL SMELL IS PRESENT WHEN THE VEHICLE IS PARKED IN A CLOSED GARAGE IF YOU CONFIRM The client states that a fuel and/or oil smell is present when the vehicle is parked in a closed garage, even though there are no fuel, oil, or EVAP leaks. ACTION Replace the rocker cover assembly and the PCV separator with those listed in the PARTS INFORMATION, and eliminate PCV hose 2. NOTE: PCV hose 2 (number 15 in Figure 1 on page 2) is no longer required with the parts listed in the PARTS NFORMATION.
ITB17-042c	2020-10-08. Service bulletin. INFINITI; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. See Amendment History on the last page. Please discard previous versions of this bulletin.
ITB19-026	2019-10-08. Service bulletin. 2019 QX50; FUEL ODOR INSIDE VEHICLE IF YOU CONFIRM A fuel odor inside the vehicle AND There are no visible fuel leaks. ACTION Replace the EVAP canister filter vent hose with the new one listed in the PARTS INFORMATION on the last page of this bulletin.
PARTS UPDATE 2 -	2018-10-01. Service bulletin. Fuel Injector Replacement Parts Update 2 *** Parts Update *** The purpose of this update is to inform retailers that 14035-5NA0A Intake Manifold Gaskets are no longer on restriction and may be ordered via normal process beginning 8/29/2018. All open SVC orders will be approved and sent to retailers; no need to re-order.
PARTS UPDATE - P	2018-10-01. Service bulletin. Fuel Injector Replacement Retailer Inventory *** Parts Update *** 100% of retailer inventory parts need was automatically shipped to affected retailers the week of July 23, 2018. The purpose of this update is to inform retailers that 14035-5NA0A Intake Manifold Gaskets are on temporary parts restriction. Intake manifold gaskets may be incorrectly packaged and a PDC stock check is currently in progress to confirm. If necessary, retailers may place a replacement order via DBS as an SVC order type only. Orders will be filled as parts become available on a first in, first out basis. Retailers should ensure that the correct part numbers and quantities are ordered for each VIN. Retailers can refer to IPSB16-384 for specific ordering instructions. As mentioned above, retailers should already have enough parts to repair affected inventory need with the exception of any incorrectly packaged 14035-5NA0A Intake Manifold Gaskets. Any parts necessary for this repair that are not restricted will need to be placed separately via normal ordering process.
P8315	2018-10-01. Service bulletin. Open Affected Retailer Inventory
ITB13-044f	2018-09-17. Service bulletin. ALL MODEL YEAR 2012 AND NEWER INFINITI VEHICLES; EVAP LEAK DTC P0442, P0455, P0456 INFORMATION This bulletin has been amended. The publication date has been revised to include the latest models and model years, and the Service Procedure has been updated. Please discard previous versions of this bulletin.