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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
ITB140242021-05-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. SERVICE INFORMATION When registering the Intelligent Keys (I-Keys) to a vehicle for one of the following concerns: * After replacing the BCM. Or * When one of the I-Keys has been lost and needs to be replaced. Or * When additional I-Keys are being added to the vehicle. Always use the following steps to insure proper registration of the I-Keys: 1. First Initialize the BCM. 2. Register all of the vehicle?s ?previously registered? I-Keys to the vehicle first. And then 3. Register any new (additional) I-Keys only after all of the pre-existing I-Keys have been registered. 4. Confirm operations of all I-Keys. Please see this bulletiln for further details.
ITB140202021-05-10. Service bulletin. ELECTRICAL SYSTEM:WIRING; EQUIPMENT. SERVICE INFORMATION Warranty claims coding for repairing wiring harnesses for all Infiniti vehicles has changed. This bulletin gives an outline of the retailer technician?s responsibilities in assisting the retailer claims administrator to properly code a harness repair. Failure to provide correct information may result in claims suspension or rejection. See this bulletin for further detail.
ITB140192021-05-10. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR; ELECTRICAL SYSTEM. IF YOU CONFIRM: While driving, the Vehicle Dynamic Control (VDC) activates when conditions do not call for VDC activation (VDC activation is not needed). ACTION: 1. Check F/B ANGLE 2 in EPS/DAST3. 2. If needed, perform Calibration and Confirmation Procedure. See this bulletin for further detail.
ITB140142021-05-10. Service bulletin. POWER TRAIN; STEERING. SERVICE INFORMATION When diagnosing an applied vehicle for possible power steering gear (rack and pinion steering rack, or steering rack) leak issues, in some cases it may appear the steering rack is leaking when actually, it?s not. Use this service bulletin to help make a more accurate diagnosis of the steering rack. - Go to Power Steering Gear Inspection starting on page 2. See this bulletin for further detail.
ITB140122021-05-10. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM. SERVICE INFORMATION When a BCM is replaced for any reason, TPMS (Tire Pressure Monitor System) configuration must be performed. TPMS configuration is in addition to any other BCM configurations that may be performed. If TPMS configuration is not performed, TPMS transmitter ID registration will not complete. Follow the Service Procedure in this bulletin to perform TPMS configuration. See this bulletin for further detail.
ITB13056A2021-05-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). IF YOU CONFIRM: The MIL is ON and one or both of the following DTCs are found stored in the ECM: - P0139 (heated oxygen sensor 2 (B1) circuit slow response) - P0159 (heated oxygen sensor 2 (B2) circuit slow response) ACTION: 1. Confirm this bulletin applies. - Compare the vehicle's current ECM part number to those listed in Table A (see page 4). 2. If the ECM part number does not match one listed in Table A, this bulletin does not apply. Go back to ASIST for further diagnostic and repair information. 3. If this bulletin applies, reprogram the ECM. See this bulletin for further detail.
PC2622021-05-10. Service bulletin. STEERING:AUTOMATED/ADAPTIVE STEERING. Beginning February 11th, 2014 Infiniti USA will be asking retailers to provide additional client satisfaction activities on specific vehicles identified through Service Comm as PC262 ?Q50 Quality Assurance?.
ITB08024C2021-05-10. Service bulletin. ELECTRICAL SYSTEM; AIR BAGS. SERVICE INFORMATION Information necessary to service the Supplemental Restraint System (SRS) safely is included in the "RESTRAINTS" section of the Electronic Service Manual (ESM) for each vehicle IMPORTANT: Turn the ignition switch OFF, disconnect both battery terminals, and wait at least 3 minutes before performing any service on the SRS. See this bulletin for further detail.
P4201OL2021-05-10. Service bulletin. STEERING:AUTOMATED/ADAPTIVE STEERING; STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 Q50 and Q50 Hybrid vehicles to reprogram the Direct Adaptive Steering (DAST).
P4202OL2021-05-10. Service bulletin. STEERING; STEERING:AUTOMATED/ADAPTIVE STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 Q50 and Q50 Hybrid vehicles to reprogram and calibrate the Direct Adaptive Steering (DAST).
P4203OL2021-05-10. Service bulletin. STEERING:AUTOMATED/ADAPTIVE STEERING; STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 Q50 and Q50 Hybrid vehicles to replace 3 control units, reprogram, and calibrate the Direct Adaptive Steering (DAST).
P4204OL2021-05-10. Service bulletin. STEERING; STEERING:AUTOMATED/ADAPTIVE STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 Q50 and Q50 Hybrid vehicles to replace 3 control units, reprogram, calibrate and reset the Direct Adaptive Steering (DAST).
P4205OL2021-05-10. Service bulletin. STEERING; STEERING:AUTOMATED/ADAPTIVE STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 Q50 and Q50 Hybrid vehicles to update the Infiniti InTouch software and Sirius XM Activation Signal Refresh.
P4206OL2021-05-10. Service bulletin. STEERING:AUTOMATED/ADAPTIVE STEERING; STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 Q50 and Q50 Hybrid vehicles to update the Infiniti InTouch software.
P42062021-05-10. Service bulletin. STEERING:AUTOMATED/ADAPTIVE STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 Q50 and Q50 Hybrid vehicles to update the Infiniti InTouch software.
P42052021-05-10. Service bulletin. STEERING; STEERING:AUTOMATED/ADAPTIVE STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 Q50 and Q50 Hybrid vehicles to update the Infiniti InTouch software and Sirius XM Activation Signal Refresh.
P42042021-05-10. Service bulletin. STEERING; STEERING:AUTOMATED/ADAPTIVE STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 Q50 and Q50 Hybrid vehicles to replace 3 control units, reprogram, calibrate and reset the Direct Adaptive Steering (DAST).
P42032021-05-10. Service bulletin. STEERING; STEERING:AUTOMATED/ADAPTIVE STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 Q50 and Q50 Hybrid vehicles to replace 3 control units, reprogram, and calibrate the Direct Adaptive Steering (DAST).
P42022021-05-10. Service bulletin. STEERING:AUTOMATED/ADAPTIVE STEERING; STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 Q50 and Q50 Hybrid vehicles to reprogram and calibrate the Direct Adaptive Steering (DAST).
P42012021-05-10. Service bulletin. STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 Q50 and Q50 Hybrid vehicles to reprogram the Direct Adaptive Steering (DAST).
ITB140022021-05-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ENGINE. SERVICE INFORMATION Replacement Engine Control Modules (ECMs) for many newer Infiniti vehicles are now "Blank" ECMs. Blank ECMs come without software and must be programmed (not reprogrammed) before they will function. See this bulletin for further detail.
ITB140012021-05-10. Service bulletin. EQUIPMENT. SERVICE INFORMATION If for any reason the lower touch screen display, NAVI control unit, or AV control unit needs to be replaced, refer to the Electronic Service Manual (ESM) for replacement procedure, if needed. After replacement, always refer to (and use as it applies) the "Infiniti InTouch Software Update" General Procedure. See this bulletin for further information.
ITB13040A2021-05-10. Service bulletin. ELECTRICAL SYSTEM. IF YOU CONFIRM: The vehicle information display stays ON with the message "Warning No Key Detected" even though the ignition is OFF, doors are closed, transmission is in Park, and the Intelligent Key is removed from the vehicle. ACTION: Perform A/T POSITION ADJUSTMENT per the Service Manual. - In the TM section of the Service Manual, go to A/T POSITION, and perform the ADJUSTMENT procedure. - Make sure the incident is resolved. See this bulletin for further detail.
ITB13034A2021-05-10. Service bulletin. TIRES; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; EQUIPMENT. SERVICE INFORMATION As of the publication date of this bulletin, the 2014 Q50 and Q50 Hybrid require the use of CONSULT-III plus to perform the TPMS (Tire Pressure Monitoring System) ID registration procedure. TPMS ID registration can be performed using one of the following procedures: - Transmitter Activation tool (J-45295-A) with CONSULT-III plus (preferred method) - Signal Tech II (J-50190) with CONSULT-III plus NOTE: As of the publication date of this bulletin, Signal Tech II cannot be used on its own (without CONSULT-III plus) to perform TPMS registration. Software updates for Signal Tech II will be available at a later date. Use the TPMS ID registration instructions in this bulletin as needed. NOTE: Tire Pressure Sensor Activation Tool J-45295 will not work on the 2014 Q50 or Q50 Hybrid. See this bulletin for further detail.
P32582021-05-10. Service bulletin. EQUIPMENT. Infiniti is conducting an update to the SiriusXM software on certain specific MY14 Q50 vehicles.

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