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Service bulletins for the 2014 Infiniti Q50

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.

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

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Bulletins, newest first
ITB17-009a2018-01-29. Service bulletin. VISIBILITY:GLASS, SIDE/REAR. WINDOW GLASS WARRANTY INFORMATION This bulletin has been amended to apply to the latest models and model years, and warranty information on page 2 has been updated. No other changes have been made. Please discard previous versions of this bulletin.
ITB12-011i2018-01-29. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TELEMATICS SERVICE INFORMATION This bulletin applies to vehicles that are equipped with factory Navigation system. This bulletin has been amended. Changes have been made throughout. You must read the entire bulletin to understand all the changed information. Please discard all previous versions of this bulletin.
ITB09-039e2018-01-29. Service bulletin. VISIBILITY:WINDSHIELD. WINDSHIELD CRACKING This bulletin has been amended to apply to the latest models and model years. Also, warranty information on pages 1 and 8 has been updated. No other changes have been made. Please discard previous versions of this bulletin.
ITB00-024g2018-01-29. Service bulletin. SERVICE BRAKES. BRAKE NOISE/JUDDER/PEDAL FEEL DIAGNOSIS AND REPAIR This bulletin has been amended to include vehicles built up to the publication date. Also, tips for using the ProCut? brake lathe were added on page 8, and a Brake Noise Diagnostic Worksheet was added on page 10. Please discard previous versions of this bulletin.
ITB13-026g2018-01-29. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. DISPLAY CONTROL UNIT REPLACEMENT This bulletin has been amended. The Applied Vehicles section and Part 1 of the Service Procedure have been revised. No other changes have been made. Please discard previous versions of this bulletin.
ITB16-0402017-10-25. Service bulletin. VISIBILITY. 2013 JX35 AND 2014 ? 2015 QX60; DOOR MIRROR GLASS WILL NOT RETURN AFTER SHIFTING REVERSE TO DRIVE Applies to vehicles equipped with Automatic Drive Positioner IF YOU CONFIRM The door mirror glass (LH and RH) automatic tilt down-up feature does not return the glass to original position after shifting from reverse to drive. ACTION Replace the Automatic Drive Positioner (ADP) Control Unit. - Use the new part listed in the Parts Information. - Refer to the Electronic Service Manual (ESM), section ADP-Automatic Drive Positioner, for replacement information.
ITB16-037a2017-10-25. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. 2014-2016 Q50; INCORRECT DIFFERENCE IN HVAC VENT TEMPERATURES The information in the previous version of this bulletin is no longer valid. Please discard the previous version of this bulletin.
ITB12-011g2017-10-25. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. TELEMATICS SERVICE INFORMATION This bulletin has been amended. Modifications have been made to include 2017 Q50, Q60, Q70, QX60, and QX80 vehicles. No other changes have been made. Please discard all previous versions of this bulletin.
P73312017-10-25. Service bulletin. ELECTRICAL SYSTEM. Disabling the 2G TCU Voluntary Service Campaign ***** Campaign Summary ***** Infiniti is conducting a Voluntary Service Campaign to disable (turn off) the 2G Telematics Control Unit (?2G TCU?). The subject QX56/QX80, JX35/QX60, M37/M56/Q70, and 2014-15 Q50 vehicles are equipped with Continental GEN1 TCU devices transmitting at 2/2.5G (GSM/GPRS/UMTS) frequencies and are designed to work with 2G cellular service. The 2G cellular service is no longer active in the United States. The subject 2G TCUs are no longer connected to telematics services and no longer perform any function in the affected vehicles. This campaign is being performed out of an abundance of caution to help safeguard against potential cybersecurity issues. - All eligible vehicles that enter the service department for any reason should have the subject 2G TCU deactivated. This campaign will be performed at no charge to the client for parts and labor. - Vehicles that have been upgraded to 3G TCUs are not subject to this campaign. - For clients interested in the 3G TCU upgrade as opposed to deactivation, please refer to ITB17-007 (PC451, PC452, or PC454)
ITB17-0072017-10-25. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. CLIENT SATISFACTION INITIATIVE 2G TELEMATICS HARDWARE REPLACEMENT This bulletin applies to vehcile equipped with navigation systems only. SERVICE INFORMATION On February 26, 2016 Infiniti announced that it was sending a reminder notification to clients affected by AT&T?s planned discontinuation of the 2G cellular network. In June 2016, Infiniti communicated instructions to retailers to update new vehicles in their inventory with 3G compatible telematics control units. At this time, Infiniti is beginning the process of making 3G compatible hardware available to owners of affected vehicles as identified above. This upgrade may require an owner to make a co-payment in order to receive the 3G hardware update. Please refer to the Claims Information below to determine if an owner co-pay is required. This client satisfaction initiative includes both the hardware upgrade and a complimentary one-year subscription to Infiniti Connection Plus telematics service; this does not apply to PC454 (see page 2 for details). You MUST use Service Comm to confirm bulletin Applicability. NOTE: - Vehicle eligibility will be viewed on the second page of Service Comm. This activity is not displayed on the main page of Service Comm because it is optional for customers to participate. - Vehicles without Navigation are ineligible as they are not equipped with TCUs. Retailer?s Responsibility It is the retailer?s responsibility to check SERVICE COMM using the appropriate Service Comm I.D. for the status on each vehicle falling within the range of this client satisfaction initiative which for any reason enters the service department. If a vehicle subject to this client satisfaction activity was part of a retailer trade, the letter associated with that vehicle should be forwarded to the appropriate retailer for upgrade completion.
REVISION 1-PC4512017-10-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. 2G Telematics Hardware Replacement Client Satisfaction Initiative The announcement from September 2, 2016 has been revised to include: - The telematics upgrade for 2014-15 Q50 is now available. The procedure and part information has been added to this announcement.. - Second page of Service Comm is not VIN specific, service personnel should check vehicle repair history prior to offering clients an opportunity to upgrade - In lieu of repair history, TCU version can be checked on the information screen (see page 2) Please discard previous versions of this announcement.
ITB16-0472017-10-15. Service bulletin. ENGINE. INFINITI; DIAGNOSIS INFORMATION FOR ABS DTC C1130 SERVICE INFORMATION When diagnosing for DTC C1130 (ENGINE SIGNAL): ECM related DTCs (P-codes) must be diagnosed, repaired, and DTCs erased first. - DTC C1130 is an ABS DTC that indicates an output signal of the ECM is not recognized. - Absent or incorrect ECM signals, that are indicated by corresponding P-codes, may trigger C1130 in the ABS control unit. - Some vehicle features that can be affected by absent or incorrect ECM signals are: - Forward Emergency Braking (FEB) - Intelligent Cruise Control (ICC) - VDC/ABS/TCS
ITB16-042a2017-10-15. Service bulletin. VISIBILITY. 2014-2017 Q60 AND Q50; POWER WINDOWS DO NOT OPERATE CORRECTLY SERVICE INFORMATION If power is interrupted to the power window system, it may cause one or more of the following symptoms to occur on one or more power windows: - AUTO-UP does not work, but window will move up and down with manual operation of the switch. - When door is opened (only applies to Q60), window will lower a small amount (normal operation) but will not raise when door is closed. - Window will move down when operating the window switch, but will not move up. NOTE: - If any of the above symptoms should occur, it may indicate that Window Initialization is needed (see page 2). Initialization should be done before attempting any repairs. - If needed, refer to the applicable Electronic Service Manual (ESM) to perform electrical diagnosis. - After electrical repairs to the vehicle (including repairs to the power windows), make sure to perform the Window Initialization and Anti-pinch Function Check procedures on page 2.
ITB16-037b2017-10-15. Service bulletin. ENGINE AND ENGINE COOLING. 2014-2016 Q50; AIR MIX DOOR MOTOR LH SERVICE INFORMATION This bulletin has been amended throughout. Discard all previous versions of this bulletin.
ITB13-052a2017-10-15. Service bulletin. ENGINE. INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended to update the Applied Vehicles and make changes to the body of the bulletin. Please discard previous versions.
ITB13-026f2017-10-15. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. DISPLAY CONTROL UNIT REPLACEMENT This bulletin has been amended. Modifications have been made to include 2017 Q50, Q50 Hybrid, Q60, QX30, QX60 and QX60 Hybrid vehicles. No other changes have been made. Please discard all previous versions of this bulletin.
ITB17-0412017-10-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. VOLUNTARY SERVICE CAMPAIGN INFINITI; 2G TELEMATICS HARDWARE DEACTIVATION INTRODUCTION Infiniti is conducting a Voluntary Service Campaign (in the U.S. ONLY) on certain specific 2013-2016 Infiniti vehicles equipped with 2G Telematics Hardware to disable the 2G Telematics Control Unit (TCU). The 2G cellular service is no longer active in the United States and the subject TCUs are no longer connected to telematics services (Infiniti ConnectTM) and no longer perform any function in the affected vehicles. This campaign is being performed out of abundance of caution to help prevent potential cybersecurity issues. - Applied vehicles equipped with the 2G Telematics Control Unit (TCU) that enter the service department for any reason should have the subject TCU deactivated. This campaign will be performed at no charge to the customer for parts or labor. - For customers interested in the TCU update as opposed to deactivation, please refer to ITB17-007. IDENTIFICATION NUMBER Infiniti has assigned identification number P7331 to this campaign. This number must appear on all communications and documentation of any nature dealing with this campaign. DEALER RESPONSIBILITY Dealers are to repair vehicles falling within range of this campaign that enter the service department. This includes vehicles purchased from private parties, vehicles presented by transient (tourists) owners, and vehicles in a retailer?s inventory.
ITB16-021a2017-10-15. Service bulletin. STRUCTURE:BODY:TRUNK LID. THEFT ALARM SOUNDS WHEN VEHICLE IS LOCKED, UNLOCKED, OR DOOR/TRUNK OPENED This bulletin has been amended. The APPLIED VEHICLES and PARTS INFORMATION sections have been revised. No other changes have been made. Please discard previous versions of this bulletin.
ITB09-015h2017-10-15. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 12 VOLT BATTERY STORAGE AND MAINTENANCE FOR NEW VEHICLES IN RETAILER INVENTORY This bulletin has been amended throughout. Please discard all previous versions of this bulletin.
ITB16-037c2017-10-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. 2014-2016 Q50; INCORRECT DIFFERENCE IN HVAC VENT TEMPERATURES This bulletin has been amended throughout. Discard all previous versions of this bulletin.
ITB12-011h2017-10-12. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TELEMATICS SERVICE INFORMATION This bulletin applies to vehicles equipped with factory Navigation system. This bulletin has been amended. Information for several 2018 models has been added. No other changes have been made. Please discard all previous versions of this bulletin.
ITB11-005c2017-10-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; WHEELS. WHEEL BALANCING SERVICE INFORMATION This bulletin has been amended. The publication date has been revised to include the latest models and model years. No other changes have been made. Please discard previous versions of this bulletin.
ITB17-042a2017-09-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). INFINITI; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. The APPLIED VEHICLES and CLAIMS INFORMATION sections have been revised. No other changes have been made. Please discard previous versions of this bulletin.
ITB17-030b2017-09-14. Service bulletin. AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION. 2014-2016 Q50; OCCUPANT CLASSIFICATION SYSTEM RETROFIT This bulletin has been amended. Pages 20 and 22 have been revised. No other changes have been made. Please discard all previous versions of this bulletin.
ITB17-030a2017-09-14. Service bulletin. AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION. 2014-2016 Q50; OCCUPANT CLASSIFICATION SYSTEM RETROFIT This bulletin has been amended. The CLAIMS INFORMATION section has been revised. No other changes have been made. 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.