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Service bulletins for the 2019 Infiniti QX50

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.

172 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
ITB22-0062022-03-12. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. BATTERY QUICK CHARGE NOTICE SERVICE INFORMATION When charging the vehicle’s 12 volt battery with the high amperage quick charge function, the ignition should never be ON, or turned ON, while charging. Attempting to start the vehicle, or turning the ignition ON, while using the high amperage quick charge could potentially damage the fuel pump control module. • Only turn the ignition ON when either the ESM or a technical service bulletin service procedure states to do so, and only while using a battery maintainer or smart charger set to reflash mode, or a similar setting. • Battery voltage should not exceed 16V during a reprograming operation.
ITB21-027A2022-03-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ENGINE AND ENGINE COOLING. MIL ON WITH DTC P11A7 STORED IN THE ECM This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB17-042E2022-03-12. Service bulletin. ENGINE AND ENGINE COOLING. 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.
ITB17-001C2022-03-12. Service bulletin. POWER TRAIN. FLUID LEAK CAUSED BY TRANSFER ASSEMBLY RIGHT SIDE DRIVE SHAFT SEAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB13-052D2022-03-12. Service bulletin. ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; ELECTRICAL SYSTEM. INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB13-044J2022-03-12. Service bulletin. FUEL SYSTEM, OTHER; ENGINE AND ENGINE COOLING. 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.
ITB13-006C2022-03-12. Service bulletin. ELECTRICAL SYSTEM. CAN COMMUNICATION – NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-013C2022-02-10. Service bulletin. LANE DEPARTURE: ASSIST; LANE DEPARTURE: BLIND SPOT DETECTION; ELECTRICAL SYSTEM. AEB WARNING LIGHT BLINKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-009B2022-02-10. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. INTELLIGENT KEY DOES NOT WORK AFTER BATTERY REPLACEMENT This bulletin is no longer active. Please discard previous versions of ITB19-009.
ITB14-011F2022-02-10. Service bulletin. ELECTRICAL SYSTEM; ENGINE. REMOTE ENGINE START NOT WORKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB10-029B2022-02-09. Service bulletin. ELECTRICAL SYSTEM. CAN COMMUNICATION CODES – DIAGNOSTIC TIPS AND GUIDELINES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB03-074P2022-01-08. Service bulletin. EXTERIOR LIGHTING. HEADLAMP, FOG LAMP, OR REAR COMBINATION LAMP FOGGING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB17-033C2022-01-08. Service bulletin. EXTERIOR LIGHTING. CLEANING FRONT OR REAR COMBINATION LAMP ASSEMBLIES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB03-051P2022-01-08. Service bulletin. EXTERIOR LIGHTING. HEADLAMP, FOG LAMP, OR REAR COMBINATION LAMP FOGGING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB21-0252021-12-08. Service bulletin. EQUIPMENT:ELECTRICAL. DTC C1A17-49 STORED IN LASER/RADAR SERVICE INFORMATION If DTC C1A17-49 (ICC SENSOR MALF) is stored in LASER/RADAR in the “PAST” column: • Erase the DTC. • DO NOT replace any parts. If DTC C1A17-49 (ICC SENSOR MALF) is stored in LASER/RADAR in the "CURRENT" column, refer to the applicable ESM for instructions.
ITB20-006B2021-12-08. Service bulletin. VISIBILITY:WINDSHIELD; VISIBILITY:WINDSHIELD WIPER/WASHER. WINDSHIELD WIPER BLADE PERFORMANCE/DIAGNOSIS SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB21-0232021-11-08. Service bulletin. POWER TRAIN. TRANSFER ASSEMBLY SEAL REPLACEMENT FOR AWD FRONT DRIVE SHAFT REMOVAL SERVICE INFORMATION When removing the front passenger (RH) side drive shaft on an applied vehicle for any reason, transfer assembly drive shaft oil seal and dust cover seal replacement is required. Refer to the SERVICE PROCEDURE in this bulletin.
ITB21-0212021-10-13. Service bulletin. STRUCTURE. REAR HATCH INOPERATIVE OR NOISE WHEN OPENING/CLOSING 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 SPINDLE SENSOR LH and/or DTC B2427-23 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 SPINDLE SENSOR LH and/or DTC B2427-23 SPINDLE SENSOR RH may also be stored. NOTE: 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.
ITB21-0202021-10-13. Service bulletin. FUEL SYSTEM, GASOLINE. 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.
PC838 - R1912 Ca2021-10-07. Service bulletin. VISIBILITY. R1912 Rear Visibility System Campaign Quality Review ***** Retailer Announcement ***** INFINITI is committed to the safety, security and satisfaction of our clients and is conducting a quality review of specific repairs for a previously completed campaign (R1912). If the VIN displays QA campaign ID PC838, retailers should perform the procedure attached to this communication even if the National Service History indicates the remedy action was previously performed for the vehicle. VINs identified with this QA campaign ID are being inspected to ensure the recall remedy was performed and documented in accordance with INFINITI’s quality standards. ***** What Retailers Should Do ***** PLEASE FOLLOW THE ATTACHED PROCEDURE: 1. Verify if vehicles are affected by this quality action using Service Comm or DBS National Service History – Open Campaigns I.D. PC838. 2. Retailers should complete this action on both retailed vehicles and previously owned vehicles within retailer inventory. • Retailers should follow all stop sale and do not drive, loan, sell, or trade instructions for campaigns. 3. Retailers will need to file the appropriate claim using applicable Op Code information in the repair procedure attached to this announcement to close the campaign. NOTE: Parts replaced under this activity will be placed on parts return. Monitor the Warranty Parts Return Website located at NNAnet.com for notifications.
ITB17-055B2021-07-10. Service bulletin. ELECTRICAL SYSTEM. INFINITI; INTELLIGENT KEY IDENTIFICATION AND REGISTRATION TIPS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
ITB16-012D2021-07-10. Service bulletin. ELECTRICAL SYSTEM. INTELLIGENT KEY BUTTONS INOPERATIVE BUT REQUEST SWITCHES WORK This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB15-026D2021-07-10. Service bulletin. ELECTRICAL SYSTEM. SIGNAL TECH-II INTELLIGENT KEY BATTERY TEST AND SIGNAL CHECK This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB13-008B2021-07-10. Service bulletin. POWER TRAIN. CLICKING NOISE FROM FRONT OR REAR AXLE DURING TAKE-OFF/ACCELERATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB17-001B2021-06-09. Service bulletin. POWER TRAIN. FLUID LEAK CAUSED BY TRANSFER ASSEMBLY RIGHT SIDE DRIVE SHAFT SEAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.