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Service bulletin ITB19-007

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 id10158424
Published by NHTSA2019-04-15
Manufacturer's numberITB19-007
Manufacturer's date2019-03-05
NHTSA componentEQUIPMENT; FUEL SYSTEM, OTHER

NHTSA's summary

INFINITI; P0171 AND P0174 SERVICE INFORMATION SERVICE INFORMATION Diagnosis for DTCs P0171 (FUEL SYS LEAN B1) and P0174 (FUEL SYS LEAN B2) have been revised for the APPLIED VEHICLES listed above. When performing diagnosis for either of these DTCs, start by using the SERVICE PROCEDURE section of this bulletin. NOTE: The related Electronic Service Manuals (ESM) will be revised in the future to include these diagnostic steps.

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

Equipment and accessories, Fuel system

Trouble codes named

P0171, P0174

Vehicles listed
INFINITI Q502017, 2018, 2019
INFINITI Q602017, 2018, 2019
INFINITI QX602017, 2018, 2019
INFINITI QX802017, 2018, 2019

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

Recalls for the same vehicles and component
26V4550002026-07-15. EQUIPMENT:OTHER:LABELS
20173752017-07-27. Fuel System
17V4760002017-07-27. ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
ITB23-010E2024-03-08. Service bulletin. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin is no longer active. To access infotainment software updates via the Infotainment Software Update Utility: Select SPECIALTY TOOLS, and then select Infotainment Software Updates on the left side of ASIST. Please discard previous versions of ITB23-010.
ITB23-010D2024-02-08. Service bulletin. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin is no longer active. To access infotainment software updates via the Infotainment Software Update Utility: Select SPECIALTY TOOLS, and then select Infotainment Software Updates on the left side of ASIST. HINT: Initially, the Infotainment Software Update Utility will be available only on the CONSULT PC version of ASIST. The Utility will be added to ASIST WEB at a later date. Please discard previous versions of ITB23-010.
ITB12-011Q2024-02-08. Service bulletin. TELEMATICS SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB23-010C2023-09-08. Service bulletin. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB23-010B2023-09-08. Service bulletin. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB18-035C2023-05-03. Service bulletin. SECURITY ALARM SOUNDS AFTER USING MECHANICAL KEY TO UNLOCK DRIVER DOOR This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB23-0102023-04-06. Service bulletin. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES SERVICE INFORMATION When diagnosing an infotainment issue or after replacement of the AV Control Unit, it is necessary to verify the current software version of the AV Control Unit to determine if a software version update is required. Use the vehicle tables in this bulletin to determine the current software version, if the AV Control Unit requires a software version update, and which procedure to use to update the AV Control Unit. The software updates in this bulletin are to address stability improvements and “bug” fixes. IMPORTANT: If the client is experiencing a software related concern, refer to ITB21-011 to verify if the client concern is a hardware or software related issue. If the concern is a software related issue, review the information in this bulletin to update the AV Control Unit as needed.
ITB21-025A2023-04-04. Service bulletin. DTC C1A17-49 STORED IN LASER/RADAR This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-024C2023-04-04. Service bulletin. DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
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.