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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.

By type

By component

By trouble code

Bulletins, newest first
ITB00031D2021-05-10. Service bulletin. AIR BAGS; EQUIPMENT; BACK OVER PREVENTION. SERVICE INFORMATION Changes or modifications to the front seat assembly trim materials may affect the proper operation of the Front Seat-Mounted Side-Impact Supplemental Air Bags and Passenger Occupant Classification Sensor and could result in serious personal injury or death. Infiniti STRONGLY RECOMMENDS AGAINST making any change to seat trim materials from the factory equipped condition. This specifically applies to replacing the seat trim with non-factory materials; adding leather/cloth seat covers, seat pads, or seat storage pouches, etc. around or over the seat back and the passenger seat cushion. See this bulletin for further detail.
ITB13002A2021-05-10. Service bulletin. EQUIPMENT. SERVICE INFORMATION DTC B2190 (NATS ANTENNA AMP) can be stored for the following reasons: 1. Something other than an Intelligent Key is inserted into the Key-Slot. 2. An Intelligent Key issue. 3. A wiring issue between the Key-Slot and the BCM. 4. A Key-Slot issue. If DTC B2190 is stored due to 1 or 2 above, it will not erase, or go to "PAST", until a known good registered Intelligent Key is inserted into the Key-Slot. For DTC B2190 diagnosis; first perform the Service Manual DTC Confirmation Procedure. See this bulletin for further detail.
ITB11003E2021-05-10. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). SERVICE INFORMATION Two methods are used to update/upgrade Navigation Map Data: 1. The customer goes to www.infinitinavigation.com and is mailed update disc(s) or SD card and installs data, OR 2. The dealership is mailed update disc(s) and the customer must visit the dealership to have data installed. Use the matrix in this bulletin to determine which method is utilized for each Applied Vehicle. See this bulletin for further detail.
ITB12041C2021-05-10. Service bulletin. SUSPENSION. SERVICE INFORMATION If a customer would like to activate a subscription for any of the following services: - SiriusXM Satellite Radio, NavTraffic, NavWeather or Travel Link OR If a radio is replaced for any reason, and a customer has an active subscription to any of the above services, OR If a customer claims to have an active subscription to any of the above services, AND any portion of the subscribed service is not operating, ... follow the steps in this bulletin to activate/refresh the service.
ITB13047A2021-05-10. Service bulletin. BACK OVER PREVENTION:DISPLAY FUNCTION. SERVICE INFORMATION In an Applied Vehicle, maintenance reminders (when set) are displayed in the following two locations: - Meter (Information Display) - APPS Screen (Maintenance Note App) Maintenance reminders set in the meter settings will display on the Information Display. Maintenance reminders set in the Maintenance Note App will display on the APPS screen. See this bulletin for more detail.
ITB14017A2021-05-10. Service bulletin. EQUIPMENT:ELECTRICAL. SERVICE INFORMATION MULTI A/V Configuration using CONSULT-III plus (C-III plus) There are many configurations of the Infiniti InTouch system. Typically, if the MULTI A/V is not configured properly on a navi equipped vehicle, you will see a clock with no hands on the upper display. If in a situation where the MULTI A/V needs to be manually configured. Please see this bulletin for further details.
ITB13057A2021-05-10. Service bulletin. COMMUNICATION: VEHICLE TO INFRASTRUCTURE. SERVICE INFORMATION If one or both Intelligent Keys cannot be located prior to customer delivery of an Applied Vehicle, refer to the applicable section of this bulletin for Intelligent Key registration instructions. - One (1) Intelligent Key Is Lost ----- Page 2 - Two (2) Intelligent Keys Are Lost ----- Page 3 See this bulletin for further detail.
P4248A2021-05-10. Service bulletin. EQUIPMENT:ELECTRICAL. Infiniti is offering owners of the 2014 Q50 the opportunity to have their vehicle?s InTouch Audio system software upgraded with a production change that has been incorporated in the Q50 manufactured after their vehicle was produced.
ITB14043A2021-05-10. Service bulletin. EQUIPMENT. SERVICE INFORMATION As part of Infiniti?s commitment to continually improve both the quality and durability of our products, Infiniti is offering owners of the 2014 Q50 the opportunity to have their vehicle?s InTouch Audio system software upgraded with a production change that has been incorporated in the Q50 manufactured after their vehicle was produced. With this Q50 Customer Satisfaction Initiative, all Infiniti retailers are authorized to perform this service upgrade at no cost to the customer for parts or labor. This Customer Satisfaction Initiative is intended to improve the overall driving experience, and to add additional features, to maximize the driving experience of Q50 owners. See this bulletin for further details.
ITB140572021-05-10. Service bulletin. ELECTRICAL SYSTEM. SERVICE INFORMATION After replacement of a CAN Gateway Module, the new module must be configured with the correct part number to complete the repair. Use the part number listed in this bulletin for all trim levels of the Applied Vehicles. See this bulletin for further details.
ITB140562021-05-10. Service bulletin. ENGINE; ELECTRICAL SYSTEM. SERVICE INFORMATION Starting with 2010 Model Year, Infiniti vehicles have been gradually incorporating a new type of DTC known as Permanent DTC or P-DTC. If a vehicle is equipped with P-DTCs, all emission related DTCs will also set a P-DTC if the MIL is turned ON. A listing of which DTCs that will also set a P-DTC is found in the DTC Index in the EC-Engine Control section of the Electronic Service Manual (ESM). If a DTC repair is performed and the DTC erased, a vehicle may fail an Emission Inspection and Maintenance test if the P-DTC is not also erased. See this bulletin for further detail.
ITB140552021-05-10. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. SERVICE INFORMATION If a customer describes lack of power or poor acceleration, perform the following checks before attempting any repair: * Check for stored DTCs. * Check if the driver is resting their left foot on the brake pedal while accelerating. Advise the customer not to rest their foot on the brake while accelerating. * Use CONSULT-III plus in Engine Data Monitor to check operation of the brake lamp circuit signal. Monitor the brake switch during the incident; it should be "OFF". Please see this bulletn for further details.
ITB13038B2021-05-10. Service bulletin. LATCHES/LOCKS/LINKAGES. IF YOU COFIRM The driver and front passenger doors will not unlock using the one-touch door unlock sensor, and the Touch Sensitive Door Sensor feature is set to ON. ACTION 1. Use Signal Tech-II to check/test signals from the BCM and the Intelligent Key. 2. Replace the Intelligent Key or BCM based on the test result. See this bulletin for further detail.
ITB140452021-05-10. Service bulletin. STEERING; STRUCTURE; EQUIPMENT. IF YOU CONFIRM One or both steering wheel switch chrome finishers on an Applied Vehicle has come off. ACTION Follow the procedure in this bulletin to install the new steering wheel switch chrome finisher(s) listed in the Parts Information section. NOTE - Do not replace the steering wheel assembly for this incident, if it should occur. See this bulletin for further detail.
P4248OL2021-05-10. Service bulletin. ELECTRICAL SYSTEM. Infiniti is offering owners of the 2014 Q50 the opportunity to have their vehicle?s InTouch Audio system software upgraded with a production change that has been incorporated in the Q50 manufactured after their vehicle was produced.
P4249OL2021-05-10. Service bulletin. ELECTRICAL SYSTEM. Infiniti is conducting a Voluntary Service Campaign on 2014 Q50 and Q50 Hybrid vehicles to install a Fuse Box B+ Terminal Cover.
P42492021-05-10. Service bulletin. ELECTRICAL SYSTEM. Infiniti is conducting a Voluntary Service Campaign on 2014 Q50 and Q50 Hybrid vehicles to install a Fuse Box B+ Terminal Cover.
P42482021-05-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Infiniti is offering owners of the 2014 Q50 the opportunity to have their vehicle?s InTouch Audio system software upgraded with a production change that has been incorporated in the Q50 manufactured after their vehicle was produced.
ITB140472021-05-10. Service bulletin. ELECTRICAL SYSTEM. INTRODUCTION Infiniti is conducting a Voluntary Service Campaign on 2014 Q50 and Q50 Hybrid vehicles to install a Fuse Box B+ Terminal Cover. This service will be performed at no charge for parts or labor. IDENTIFICATION NUMBER Infiniti has assigned identification number P4249 to this campaign. This number must appear on all communications and documentation of any nature dealing with this campaign.
ITB140462021-05-10. Service bulletin. STEERING; STEERING:AUTOMATED/ADAPTIVE STEERING. SERVICE INFORMATION When performing Direct Adaptive Steering (DAST) Calibration (Mode 1): Always use an alignment rack with the front wheels positioned on the turntables and the pins removed. The front wheels must be allowed to move freely. DO NOT perform DAST Calibration (MODE 1) with the front wheels in any other position then listed above. To prevent damaging the spiral cable during DAST Calibration (MODE 1), follow instruction in the ESM. See this bulletin for further detail.
ITB140442021-05-10. Service bulletin. SERVICE BRAKES, HYDRAULIC. IF YOU CONFIRM: The rear brakes squeak when braking while the brakes are at normal operating temperature AND the applied vehicle is equipped with single piston rear brake calipers. ACTION: Replace the hardware on both rear brake calipers with the kit listed in PARTS INFORMATION in this bulletin. NOTE: Machining of the rotors is not necessary. Refer to the Electronic Service Manual (ESM), section BR-Brake System, for removal and installation. See this bulletin for further detail.
ITB140382021-05-10. Service bulletin. ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; EQUIPMENT. SERVICE INFORMATION When replacing a BCM for any reason and the original BCM?s configuration cannot be accessed with CONSULT-III plus (C-III plus), the new BCM must be manually configured. Configuration settings are not "spelled out" in C-III plus. For example, under Intelligent Key Type the designation "0" is used in place of "without I-KEY". Currently, the Electronic Service Manual (ESM) does not have a definition chart. The ESM will be updated with this information. Updated ESMs will be distributed to the field as quickly as possible. Until the updated ESMs are made available, please use the chart on the next page to assist in performing a manual configuration on the applied vehicles listed above. See this bulletin for further detail.
ITB140292021-05-10. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN. IF YOU CONFIRM Using chassis ear, a rattle noise coming from the rear propeller shaft center bearing under the following conditions - Light to moderate acceleration, and between 2,000 and 2,800 rpm. ACTION Replace the rear propeller shaft with the new one (new style) listed in the Parts Information of this bulletin. See this bulletin for further detail.
ITB10029A2021-05-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. SERVICE INFORMATION Related to communication codes U1000, U1001, U1002, U1010: - Always diagnose the communication codes first. - When a module reports a U1000 code, it is typically operating normally; however, there is a communication error external to that module on the CAN network. - U1000 indicates an error. V-CAN diagram or CAN Diag Support Monitor provides data to determine the location of the error. See this bulletin for more information.
ITB140262021-05-10. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, HYDRAULIC. IF YOU CONFIRM When initially applying the brakes: * The brakes are too sensitive and may unexpectedly grab with a lower than normal pedal pressure. AND * Only occurs at ambient temperatures below 40°F (4°C). NOTE: This Service Procedure will not change or affect any braking sensitivity above 40°F (4°C). ACTION 1. Bleed the brake hydraulic system. 2. Reprogram the Brake Controller. 3. Erase all DTCs present. Please see this bulletin for further details.

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