2020 Infiniti QX50 Technical Service Bulletins

154 technical service bulletins (TSBs) are on record for the 2020 Infiniti QX50. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10204198Nov 15, 2021Equipment. 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.
• 10203442Oct 26, 2021Electrical system. CLIENT SATISFACTION INITIATIVE 2020-2021 Q50, Q60, QX50, AND QX80; INFOTAINMENT SOFTWARE UPDATE AND WIRELESS CARPLAY CONFIGURATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
• 10203443Oct 25, 2021Transmission and drivetrain. 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.
• 10204189Oct 18, 2021Electrical system. Wireless Apple CarPlay® Update Voluntary Service Campaign UPDATE October 18, 2021 Please discard earlier versions of this bulletin. The announcement from October 6, 2021 has been updated to highlight the following important information:  Retailers should ensure they are using the most recent version of the CONSULT III operating system.  Ensure that the technician has configured the audio/IT unit as…
• 10204181Oct 6, 2021Electrical system. Wireless Apple CarPlay® Update Voluntary Service Campaign ***** Campaign Summary ***** INFINITI is conducting a Client Service Initiative to provide a free Infotainment software update, which includes Wireless Apple CarPlay® until March 31, 2022. The update will bring the vehicle’s software to current production level, improve system overall performance, and enable you to use Apple CarPlay® wirelessly!
• 10203441Oct 5, 2021Electrical system. CLIENT SATISFACTION INITIATIVE 2020-2021 Q50, Q60, QX50, AND QX80; INFOTAINMENT SOFTWARE UPDATE AND WIRELESS CARPLAY CONFIGURATION SERVICE INFORMATION Infiniti is providing a free infotainment software update, including Wireless Apple CarPlay®, until March 31, 2022. This upgrade will bring the vehicle’s infotainment software up to current production level, improve system overall performance, and enable wireless…
• 10202233Sep 14, 2021Body and 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…
• 10202232Sep 9, 2021Fuel system. 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.
• 10200010Jul 13, 2021Equipment, Electrical system. DTC B2724-23 AND/OR C1B56-04 STORED, AND/OR RAB ERROR MESSAGE OR WARNING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10199137Jun 9, 2021Transmission and drivetrain. 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.
• 10199141Jun 7, 2021Electrical 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.
• 10199140Jun 7, 2021Electrical 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.
• 10199139Jun 7, 2021Electrical 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.
• 10195473May 27, 2021Transmission and drivetrain. 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.
• 10191927Apr 21, 2021Electrical system, Equipment. TELEMATICS (IVC) SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
• 10191929Apr 9, 2021Seats. 2019-2020 QX50; DRIVER SEAT WILL NOT MOVE FORWARD IF YOU CONFIRM After the driver side seat has been moved all the way to the maximum rearward position, it will not move forward. ACTION Replace the driver side seat lifter/slide assembly.
• 10191928Apr 1, 2021Engine cooling. MIL ON WITH DTC P062F AND/OR P0603 STORED IF YOU CONFIRM The MIL is ON and DTC P062F (EEPROM) and/or P0603 (ECM BACK UP/CIRCUIT) is stored, And The customer stated the vehicle was recently started after sitting for an extended period of time (i.e., the battery voltage was low while attempting to start the engine). ACTION 1. Test the vehicle’s 12 volt battery using the Midtronics DSS-5000. Recharge or replace the…
• 10190150Mar 24, 2021Electrical system. INFINITI; FRONT SONAR PARKING SENSOR SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10190190Mar 15, 2021Visibility (wipers, defrost, mirrors). 2020 QX50; WINDSHIELD REPLACEMENT SERVICE INFORMATION Three additional windshield part numbers were added to the Electronic Parts Catalog (EPC) for the 2020 QX50. If the windshield on an applied vehicle needs to be replaced for any reason, enter the VIN into the EPC to obtain the correct part number.
• 10190189Mar 15, 2021Electrical system. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10190188Mar 5, 2021Electrical system. DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10188304Mar 3, 2021Electrical system. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10190187Mar 1, 2021Engine cooling. 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.
• 10188352Feb 26, 2021Transmission and drivetrain, Equipment. PREVENT FRONT AXLE THREAD DAMAGE DURING AXLE NUT REMOVAL SERVICE INFORMATION If an Applied Vehicle needs to have a front axle nut removed, for any reason, the staking of the nut into the axle keyway must first be removed. The essential tool (part number # J-52982, Figure 1) required to remove the nut staking, is called out as a “Cape Chisel” in the Electronic Service Manual (ESM), and must be used to prevent…
• 10188526Feb 4, 2021Electrical system. INFINITI; AV CONTROL UNIT REPLACEMENT PROCESS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10188523Feb 4, 2021Equipment, Electrical system. AV CONTROL UNIT INFORMATION This bulletin has been amended. See AMENDMENT HISTORY, below. Discard all previous versions of this bulletin.
• 10188303Feb 3, 2021Forward collision avoidance, Lane departure. AEB WARNING LIGHT BLINKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10188305Feb 2, 2021Equipment, Electrical system, Forward collision avoidance. LANE CAMERA AIMING VEHICLE REFERENCE VALUES NOT IN ESM This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10186824Jan 28, 2021Electrical system. TELEMATICS CONTROL UNIT RESET AFTER AUTOMATIC COLLISION NOTIFICATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10186822Jan 28, 2021Electrical system. DTC B2724-23 AND/OR C1B56-04 STORED, AND/OR RAB ERROR MESSAGE OR WARNING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10186793Jan 27, 2021Electrical system. TELEMATICS (IVC) SERVICE INFORMATION See ITB12-011 for models built before those listed above for a different Service Procedure. SERVICE INFORMATION The Applied Vehicles are equipped with a wireless communication device called a Telematics Communication Unit (TCU). With an active Infiniti InTouch Services™ subscription the TCU communicates with the Infiniti Data Center to provide various security and convenience…
• 10185381Dec 23, 2020Transmission and drivetrain, Equipment. 2019-2020 QX50; CVT FLUID COOLER HOSE LEAK IF YOU CONFIRM CVT fluid is leaking from the upper CVT fluid cooler hose, at the CVT cooler. Or The upper CVT fluid cooler hose has become detached while driving. NOTE: If CVT fluid is leaking from any other location, this bulletin does not apply. Refer to the ESM for further diagnostic and repair information. ACTION Follow the service procedure in this bulletin to replace…
• 10185408Dec 17, 2020Visibility (wipers, defrost, mirrors). 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.
• 10183966Nov 30, 2020Electrical system, Other or unknown. TELEMATICS CONTROL UNIT RESET AFTER AUTOMATIC COLLISION NOTIFICATION SERVICE INFORMATION The Telematics Control Unit (TCU) has the ability to send an automatic collision notification when the vehicle is involved in an accident. Once an automatic collision notification is performed, the function becomes disabled. The TCU must be reset to re-enable the automatic collision notification function.
• 10183965Nov 10, 2020Brakes. DTC B2724-23 AND/OR C1B56-04 STORED, AND/OR RAB ERROR MESSAGE OR WARNING IF YOU CONFIRM One or both of the following DTCs are stored:  B2724-23 (SONAR CONTROL UNIT - SONAR ECU INTERNAL FAILURE [UNDER VOLTAGE])  C1B56-04 (SONAR CIRCUIT - SYSTEM INTERNAL MALFUNCTION) NOTE: A RAB warning may appear in the vehicle information display. ACTION Reprogram the Sonar Control Unit, if applicable.
• 10183964Nov 5, 2020Lane departure, Forward collision avoidance. AEB WARNING LIGHT BLINKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10180980Sep 16, 2020Electrical system, Lane departure. LANE CAMERA AIMING VEHICLE REFERENCE VALUES NOT IN ESM SERVICE INFORMATION If the lane camera requires aiming, the values in Table A on page 4 must be used.  For all other models, consult the Electronic Service Manual (ESM). The following CONSULT-III plus (C-III plus) figures and steps are only provided to indicate where the VEHICLE REFERENCE VALUE from Table A is to be entered. The entire camera aiming…
• 10180978Sep 14, 2020Fuel system, Equipment. 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.
• 10179560Aug 31, 2020Electrical system. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES SERVICE INFORMATION When diagnosing an infotainment issue, always confirm that the latest software is installed in the AV control unit before starting the diagnosis. The software update in the following Service Procedure is for the items below:  Stability improvements and “bug” fixes Refer to steps 1 - 4 to confirm that this bulletin applies.
• 10178190Jul 16, 2020Body and structure, Equipment, Electrical system. POWER BACK DOOR WILL NOT OPERATE WITH REQUEST SWITCHES IF YOU CONFIRM On vehicles equipped with a Kick Motion Activated Liftgate, the back door (liftgate) will not open or close when requested to do so using the:  Intelligent Key  Back door request switch, located on the back door  Automatic back door switch, located on the instrument lower panel LH And DTC B2409 is either current or has been stored in the…
• 10174413Apr 27, 2020Equipment. INFINITI; AV CONTROL UNIT REPLACEMENT PROCESS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10173598Mar 27, 2020Wheels. 2020 QX50; REAR WHEEL ALIGNMENT SERVICE INFORMATION SERVICE INFORMATION Some wheel alignment specifications listed in the Rear Suspension section of the Electronic Service Manual (ESM) have been revised. Until the updated ESM is made available, use the revised specifications listed in this bulletin.
• 10173587Mar 25, 2020Transmission and drivetrain. 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.
• 10173592Mar 18, 2020Body and structure. 2019-2020 QX50; MOONROOF ASSEMBLY REPLACEMENT IF YOU CONFIRM The moonroof assembly needs to be replaced for any reason AND The replacement moonroof part number is one of the following:  - 91205-5NA0A  - 91205-5NA0B  - 91205-5NA0C ACTION Apply flocking tape to the moonroof inner finishers per ITB20-008.  - Refer to PARTS INFORMATION on the last page of this bulletin for flocking tape.
• 10173591Mar 18, 2020Body and structure, Visibility (wipers, defrost, mirrors). 2019-2020 QX50; RATTLE FROM MOONROOF Refer to the SERVICE PROCEDURE on page 2 if directed here from ITB20-009. IF YOU CONFIRM A rattle type noise is coming from the moonroof in the areas circled in green in Figure 1 AND The rattle goes away after removing the moonroof inner finisher(s). NOTE: The rattle noise may be intermittent and may be heard from one or both sides of the vehicle. ACTION Apply flocking tape to…
• 10172266Feb 21, 2020Equipment. PC714 Retailer Inventory as of 2.20.2020
• 10172265Feb 21, 2020Equipment. American Automobile Labeling Act (AALA) Labels – EXPIRATION NOTICE Retailer Inventory UPDATE February 21, 2020 Please discard earlier versions of this bulletin. INFINITI announced the following quality action in October 2019. Service Comm will de-activate PC714 on any un-remedied VINs on February 28, 2020. INFINITI is still requesting that retailers apply the replacement label on any affected vehicles prior to…
• 10170002Dec 11, 2019Equipment, Body and structure. 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…
• 10168894Nov 26, 2019Electrical system, Equipment. INFINITI; AV CONTROL UNIT REPLACEMENT PROCESS IF YOU CONFIRM The AV control unit needs to be replaced on an APPLIED VEHICLE. ACTION 1. Read and save the VIN 2. Read and save the configuration 3. Replace the AV control unit 4. Reprogram the AV control unit 5. Configure the AV control unit 6. Write the VIN to the AV control unit IMPORTANT: Procedures 4-6 above must be performed in the order shown below.
• 10167411Oct 25, 2019Other or unknown. American Automobile Labeling Act (AALA) Labels Retailer Inventory UPDATE October 25, 2019 Please discard earlier versions of this bulletin. The announcement from October 22, 2019 has been revised to include:  - Label shipments have been delayed and will resume next week. All shipments will be concluded by November 15, 2019.

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