2018 Infiniti Q50 Technical Service Bulletins

159 technical service bulletins (TSBs) are on record for the 2018 Infiniti Q50. 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.

• 11031720Apr 13, 2026Body and structure. 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…
• 11031701Mar 30, 2026Electrical system. TELEMATICS SERVICE INFORMATION See ITB19-029 for models built after 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 Connection® or Infiniti InTouch Services™, the TCU communicates with the Infiniti Data Center to provide various security and…
• 11014469Feb 20, 2025Electrical system, Forward collision avoidance. AEB WARNING LIGHT IS ON WITH WARNING MESSAGES DISPLAYED ON COMBINATION METER APPLIED VEHICLES: 2015-2024 Q50 (V37) 2015-2018 Q50 Hybrid (HV37) 2017-2022 Q60 (CV37) 2015-2019 Q70 (Y51) 2015-2018 Q70 Hybrid (HY51) 2019-2024 QX50 (J55) 2022-2024 QX55 (FJ55) 2015-2021 QX60 (L50) 2022-2024 QX60 (L51) 2015-2019 QX60 Hybrid (L50H) 2015-2024 QX80 (Z62) SERVICE INFORMATION The AEB system is designed to turn itself OFF…
• 11014069Feb 4, 2025Engine. ***** Retailer Announcement ***** INFINITI is committed to providing the highest levels of product quality and customer satisfaction. Therefore, INFINITI is conducting a warranty extension to Full Useful Life (FUL) of 10 years or 120,000 miles, whichever occurs first, if white smoke or oil leak occurs with MIL-On condition that requires replacement of the turbocharger assembly on model year 2016-2018 Q50 and model…
• 11014067Feb 4, 2025Electrical system, Engine. MIL ON WITH DTC(S) STORED IN THE ECM This bulletin is no longer active. Please discard previous versions of ITB17-050.
• 11014066Feb 4, 2025Engine. TURBOCHARGER REPLACEMENT PROCEDURE APPLIED ENGINES: VR30DDTT IF YOU CONFIRM One or both turbochargers require replacement. ACTION 1. Replace the affected turbocharger(s).  Refer to the SERVICE PROCEDURE in this bulletin for the updated procedure. IMPORTANT: You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair. 2. Refer to step 212…
• 11013263Jan 14, 2025Engine, Electrical system. ENGINE ROOM SUB-HARNESS IF YOU CONFIRM DTC P06DA-00 for “ENGINE OIL PRESSURE CONTROL” is stored as current (active) with CONSULT-III plus (C-III plus). ACTION Replace the engine room sub-harness. Refer to the SERVICE PROCEDURE in this bulletin. 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…
• 11009064Sep 19, 2024Air bags. DTC B00A0-00 STOREIF YOU CONFIRM DTC B00A0-00 (OCCUPANT DETECTION SENSOR UNIT) is stored, AND OCS zero point reset cannot be performed, (continued on the next page)D
• 11004954May 21, 2024Electrical system. INTELLIGENT KEY INITIALIZATION PROCEDURE STOPS OR WILL NOT CONTINUE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
• 11002539May 20, 2024Electrical 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.
• 11002537May 20, 2024Electrical 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.
• 11001653May 20, 2024Electrical 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.
• 11001182Apr 30, 2024Visibility (wipers, defrost, mirrors). WINDOW GLASS WARRANTY INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 11001179Apr 30, 2024Visibility (wipers, defrost, mirrors). REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 11001177Apr 29, 2024Visibility (wipers, defrost, mirrors). WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 11001187Apr 13, 2024Electrical system, Forward collision avoidance. AUTOMATIC EMERGENCY BRAKING WARNING LIGHT BLINKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10251530Feb 22, 2024Equipment, Electrical system. 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.
• 10249897Jan 24, 2024Electrical system, Equipment. 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…
• 10249891Jan 22, 2024Electrical system, Equipment. TELEMATICS SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10246431Nov 6, 2023Engine cooling. TURBOCHARGER REPLACEMENT PROCEDURE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10246428Nov 6, 2023Engine cooling. MIL ON WITH DTC(S) STORED IN THE ECM This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10242043Aug 16, 2023Equipment, Electrical 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.
• 10242041Aug 4, 2023Engine cooling. TURBOCHARGER REPLACEMENT PROCEDURE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10242042Aug 1, 2023Equipment, Electrical 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.
• 10240534Jul 11, 2023Transmission and drivetrain. DTC P0744 STORED IN THE TCM IF YOU CONFIRM DTC P0744 (TORQUE CONVERTER) is stored as PAST or CURRENT in the TCM. ACTION Follow the SERVICE PROCEDURE in this bulletin to reprogram the TCM.
• 10239069Jun 14, 2023Engine cooling. ISS Reprogram Voluntary Emission Recall Campaign REVISED June 14, 2023 Please discard earlier versions of this bulletin. The announcement from June 10, 2023 has been revised to include the following:  INFINITI has expanded the investigation of a potential issue with the repair remedy to include model years 2018-2019 Q50 and Q60 vehicles.  Repairs on all vehicles are temporarily suspended while INFINITI…
• 10239068Jun 10, 2023Engine cooling. ISS Reprogram Voluntary Emission Recall Campaign REVISED June 10, 2023 Please discard earlier versions of this bulletin. The announcement from May 5, 2023 has been revised to include the following: • INFINITI is investigating a potential issue with the repair remedy for model years 2016-2017 Q50 and Q60 vehicles.  As a result, these affected vehicles will be temporarily deactivated in Service Comm and National…
• 10237598May 5, 2023Engine cooling. Daimler ISS Reprogram Voluntary Emission Recall Campaign ***** Campaign Summary ***** INFINITI is conducting a Voluntary Emissions Recall Campaign on certain MY2016-2019 INFINITI Q50 and MY2017-2019 INFINITI Q60 vehicles to reprogram the Engine Control Module (ECM). The ECM reprogram is intended to improve the Idle Stop/Start functionality after 250,000 starter operations. Affected vehicles are subject to stop…
• 10237560May 4, 2023Engine cooling. VOLUNTARY EMISSIONS RECALL CAMPAIGN 2016-2019 Q50/Q60; ENGINE CONTROL MODULE INTRODUCTION Infiniti is conducting this voluntary emissions recall campaign on certain specific model year 2016-2019 Q50 and 2017-2019 Q60 vehicles. The Engine Control Module (ECM) will be inspected, and if necessary, reprogrammed and configured. This service will be performed at no charge to the client for parts or labor. IDENTIFICATION…
• 10235461Apr 17, 2023Electrical system. REMOTE ENGINE START NOT WORKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10235451Apr 5, 2023Exterior 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.
• 10235695Apr 4, 2023Electrical 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.
• 10233614Mar 29, 2023Transmission 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.
• 10233657Mar 9, 2023Equipment. DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10233648Mar 9, 2023Forward collision avoidance. AUTOMATIC EMERGENCY BRAKING WARNING LIGHT BLINKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10233823Mar 8, 2023Equipment, Electrical system. 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…
• 10233611Mar 8, 2023Brakes. ABS/VDC CAN DIAGNOSIS INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10232646Feb 27, 2023Body and structure, Visibility (wipers, defrost, mirrors). REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10232644Feb 27, 2023Body and structure, Visibility (wipers, defrost, mirrors). WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10232645Feb 22, 2023Wheels. WHEEL BEARING COLLISION DAMAGE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10231087Jan 18, 2023Engine cooling. MIL ON WITH DTC P0101 AND/OR P010B STORED IN THE ECM SERVICE INFORMATION If the MIL is ON and DTC P0101 (MAF SEN/CIRCUIT-B1) and/or DTC P010B (MAF SEN/CIRCUIT-B2) is stored in the ECM on an APPLIED VEHICLE, follow the information in this bulletin along with the ESM to complete the required repairs.
• 10229603Dec 9, 2022Engine cooling. TURBOCHARGER REPLACEMENT PROCEDURE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10227253Nov 23, 2022Transmission and drivetrain. DRIVE SHAFT BOOT SERVICE INFORMATION SERVICE INFORMATION If a Drive Shaft (Axle Shaft) Boot on an APPLIED VEHICLE is found to be leaking grease, AND There is no abnormal noise or obvious CV Joint risk due to water intrusion and/or complete grease loss, check for REPAIR KIT-DUST BOOT (cv Joint Boot Kit) availability.  If there is a REPAIR KIT-DUST BOOT (CV Joint Boot Kit) available for the vehicle being repaired…
• 10227251Nov 22, 2022Other or unknown, Electrical system. 3G TELEMATICS HARDWARE DEACTIVATION SERVICE INFORMATION The APPLIED VEHICLES that come equipped with a factory installed SOS switch, located near the overhead map lamp, also come equipped with a wireless communication device called a Telematics Communication Unit (TCU). AT&T discontinued its U.S. 3G network coverage on February 22, 2022. As a result, automakers that utilize AT&T’s 3G network connection, including…
• 10227249Nov 14, 2022Engine cooling. TURBOCHARGER REPLACEMENT PROCEDURE SERVICE INFORMATION If either one or both turbochargers require replacement, refer to the SERVICE PROCEDURE in this bulletin for the updated procedure. IMPORTANT: You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.  2016-2017 Q50 and 2017 Q60 will require an ECM reprogramming at the end of…
• 10222705Sep 27, 2022Transmission 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.
• 10212027Apr 26, 2022Air bags, Electrical system. DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• 10213151Apr 5, 2022Fuel system. 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.
• 10208937Feb 22, 2022Electrical system. INFINITI; INTELLIGENT KEY INITIALIZATION PROCEDURE STOPS OR WILL NOT CONTINUE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
• 10208933Feb 22, 2022Electrical 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.

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