Service bulletin ITB20-005

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	10172179
Published by NHTSA	2020-03-06
Manufacturer's number	ITB20-005
Manufacturer's date	2020-02-18
NHTSA component	EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

2016-2019 QX80; MIL ON WITH DTC P0174 IF YOU CONFIRM The MIL is ON and only DTC P0174 (FUEL SYS LEAN B2) is stored in the ECM. ACTION 1. Confirm the current ECM part number. 2. Reprogram the ECM, if applicable.

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

Electrical system, Equipment and accessories, Fuel system, Software

Trouble codes named

P0174

Vehicles listed
INFINITI QX80	2016, 2017, 2018, 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
ITB19-024B	2022-05-20. 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.
ITB18-040c	2019-10-08. Service bulletin. SOFTWARE UPDATES FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
ITB18-040a	2019-02-25. Service bulletin. INFINITI; SOFTWARE UPDATES FOR INFOTAINMENT ISSUES This bulletin has been amended. Please see Amendment History on the last page. Please discard previous versions of this bulletin.
ITB18-040	2019-02-25. Service bulletin. INFINITI; SOFTWARE UPDATES FOR INFOTAINMENT ISSUES IF YOU CONFIRM Any one or a combination of the following on an applied vehicle: - Reverse camera is blank (vehicles manufactured before May 1, 2018) - Reverse camera remains ON when in Drive (vehicles manufactured before May 1, 2018) - Average fuel economy displays 99.9 MPG - Display screen flickers at higher ambient interior temperatures - SXM Info Apps (Weather, Stocks, Fuel Prices) inoperative ACTION 1. Refer to page 4, step 8 in the SERVICE PROCEDURE to confirm an update applies to the Display Control Unit (DCU) of the vehicle being worked on. - Confirmation is determined by comparing the DCU part number with those listed in Table on page 5. 2. If this bulletin applies, update the DCU software. - See REQUIRED SPECIAL TOOL on page 2. NOTE: The updated software resolves the items above along with improving software stability.
ITB12-011k	2018-05-14. Service bulletin. TELEMATICS SERVICE INFORMATION This bulletin has been amended. Changes have been made throughout. It is necessary to read the revised procedure(s) in entirety to properly perform the action(s). Please discard previous versions of this bulletin.
ITB18-011	2018-05-07. Service bulletin. INFINITI; MICROPHONE DOES NOT WORK IF YOU CONFIRM The microphone of an applied vehicle does not work. - The person receiving your call through Bluetooth® cannot hear you. And Voice Recognition does not respond to any commands. NOTE: DTCs U1A01 and/or U1A02 may be found stored. ACTION 1. Confirm TCU reprogramming will resolve the issue. - Refer to ?Issue Confirmation? on page 2. 2. If confirmed, reprogram the TCU.
ITB12-011j	2018-02-21. Service bulletin. TELEMATICS SERVICE INFORMATION This bulletin has been amended. A correction was made to the Service Procedure on page 15. No other changes were made. Please discard previous versions of this bulletin.
ITB17-052	2017-11-14. Service bulletin. 2016 QX80; FAN COUPLING TICK / KNOCK NOISE IN TEMPERATURES 32°F (0°C) OR BELOW IF YOU CONFIRM A knocking or ticking noise is coming from the engine fan coupling when the vehicle is operated at or below 32°F (0°C). ACTION 1. Confirm this bulletin applies. 2. Check and compare your Current ECM Part Number to Table A on page 4. 3. If the part number does not match one in Table A, this bulletin does not apply. Go back to ASIST for further diagnostic and repair information. 4. If this bulletin applies, reprogram the ECM.
ITB17-015	2017-08-01. Service bulletin. NAVIGATION SYSTEM REBOOTS WHEN SXM TRAFFIC IS ENABLED IF YOU CONFIRM The Navigation system in an Applied Vehicle reboots when SXM Traffic is enabled. NOTE: Perform the steps in this bulletin ONLY if the above condition occurs while the vehicle is in the state of Oregon. ACTION Update the Navigation system software using the DVD shown on page 2.
P6335 QX80 ECM R	2017-08-01. Service bulletin. ECM Reprogram Retailer Inventory *** Retailer Announcement * Infiniti is conducting a retailer inventory service action to Update Electronic Control Module (ECM) software on 1,874 specific 2017 QX80 vehicles identified in Service Comm. On the affected vehicles, the ECM software is being updated to refine the MIL illumination logic for the exhaust gas temperature sensor. Affected vehicles are not subject to stop sale and are either currently in retailer inventory or assigned and in transit to the retailer. Infiniti requests retailers complete this software update prior to sale to ensure client satisfaction. * What Retailers Should Do * PLEASE FOLLOW THE ATTACHED REPAIR INSTRUCTIONS: 1. Verify if vehicles are affected by this client satisfaction initiative using Service Comm I.D. P6335 - New vehicles in retailer inventory can also be identified using DCS (Sales-> Vehicle Inventory, and filter by Open Campaign). - Refer to IPSB 15-286 for additional information - Please continue to check newly arriving inventory for campaign applicability. 2. Use the attached procedure to install the updated software. 3. The service department should submit the applicable warranty claim for the action performed so it can be closed on Service Comm and release the vehicle. * Retailer Responsibility *** It is the retailer?s responsibility to check Service Comm using the appropriate campaign I.D for the inspection status on each affected vehicle currently in new vehicle inventory. Infiniti requests retailers to perform this repair on new vehicles in inventory prior to being retailed to ensure client satisfaction.