Service bulletin ITB19-044

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	10170002
Published by NHTSA	2020-01-09
Manufacturer's number	ITB19-044
Manufacturer's date	2019-12-11
NHTSA component	STRUCTURE; EQUIPMENT

NHTSA's summary

2019-2020 QX50; DOOR FINISHER DISCOLORATION/FLAKING DUE TO WINDOW TINT INSTALLATION SERVICE INFORMATION If the aluminum trim on any door finisher is discolored and/or flaking on an applied vehicle, this may have been caused by the fluid used to install aftermarket window tinting. Before applying aftermarket window tint/film on an applied vehicle, thoroughly cover the complete door finisher to prevent damage that could be caused by the window tinting fluid. IMPORTANT: Damage to the door finisher will not be considered warrantable if it is found to be caused by the fluid used when installing aftermarket window tinting.

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

Body and frame, Equipment and accessories

Vehicles listed
INFINITI QX50	2019, 2020

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

Recalls for the same vehicles and component
21V025000	2021-01-26. EQUIPMENT:OTHER:LABELS; TIRES

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
ITB09-063C	2026-04-29. Service bulletin. CERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision damage or other vehicle repair, a replacement “Certification Label” or “VIN Plate/Label” may be needed. HINT: Certification Label = FMVSS (Federal Motor Vehicle Safety Standards) label. These items may be available from Infiniti by request if certain criteria are met. This bulletin lists the criteria and provides an application form for such replacements. · The “VIN Plate/Label” (metal plate or vinyl label) is attached to the instrument panel or body on the driver side at the base of the windshield (see Figure 1). · The “Certification Label” (vinyl adhesive label) is located on the lower area of the driver side B-Pillar (see Figure 1).
ITB21-021A	2025-10-21. Service bulletin. IF YOU CONFIRM The client states that either the rear hatch is inoperative, or the rear hatch closes after opening only a small amount, AND DTC B2426-23 for “SPINDLE SENSOR LH” and/or DTC B2427-23 for “SPINDLE SENSOR RH” is stored, AND/OR There is a growling type noise from the rear hatch area when opening/closing the rear hatch. · DTC B2426-23 for “SPINDLE SENSOR LH” and/or DTC B2427-23 for “SPINDLE SENSOR RH” may also be stored. HINT: If any DTC other than B2426-23 and/or B2427-23 is stored, this bulletin does not apply. ACTION Replace ONLY the spindle unit that is confirmed to be setting one of the DTCs listed above and/or causing the growling noise. Do NOT replace both spindle units when diagnosis leads to replacement of only one. HINT: Rear hatch spindle units are not hydraulic systems. If a rear hatch spindle unit appears to be leaking, this is normal drainage of water (rain, car wash, condensation) and design intended water management. Do not replace spindle units for suspected leaking. 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.
ITB23-010E	2024-03-08. 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.
ITB23-010D	2024-02-08. 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.
ITB23-009A	2024-02-08. Service bulletin. INFOTAINMENT SYSTEM IN RENTAL CARS FREQUENTLY REBOOTS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB12-011Q	2024-02-08. Service bulletin. TELEMATICS SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB23-010C	2023-09-08. 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.
ITB23-010B	2023-09-08. 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.
ITB22-043A	2023-06-07. Service bulletin. INFOTAINMENT CONTROL UNIT REPLACEMENT SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB23-010	2023-04-06. 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.