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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
ITB11-003F2021-04-08. Service bulletin. ELECTRICAL SYSTEM. NAVIGATION MAP DATA UPDATE MATRIX This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-005a2021-03-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. CLOCK, AUDIO, HVAC OR NAVIGATION SETTINGS INTERMITTENTLY CHANGE ON THEIR OWN This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB16-009a2021-02-06. Service bulletin. EQUIPMENT. INFINITI; THEFT ALARM TRIGGER HISTORY FUNCTION This bulletin is no longer active. Please discard previous versions of ITB16-009.
ITB14-043b2021-02-04. Service bulletin. ELECTRICAL SYSTEM. CUSTOMER SATISFACTION INITIATIVE 2014 Q50 AUDIO SOFTWARE UPDATE Service Campaign ID # P4248 is no longer active. • Repair orders opened after this bulletin’s published date are no longer eligible for reimbursement under Campaign ID # P4248. Please discard all previous versions of ITB14-043.
ITB17-007a2021-01-09. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. CLIENT SATISFACTION INITIATIVE 2G TELEMATICS HARDWARE REPLACEMENT Customer Satisfaction Initiative ID # PC451, PC452 and PC454 are no longer active. • Repair orders opened after this bulletin’s published date are no longer eligible for reimbursement under Campaign ID # PC451, PC452 or PC454. • Please discard all previous versions of ITB17-007.
ITB15-024a2021-01-09. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). 2005-2015 INFINITI VEHICLES; ECM REPROGRAMMING SERVICE INFORMATION This bulletin is no longer active. Please discard previous versions of ITB15-024.
EXPIRATION NOTIF2021-01-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Expiration Notification - 2G Telematics Hardware Replacement Campaign Summary In 2016, INFINITI launched a Client Satisfaction Initiative (CSI) that provided clients with an opportunity to update the Telematics Control Unit (TCU) in vehicles equipped with a TCU designed to connect to the 2G cellular network. AT&T stopped accepting enrollments on the 2G cellular network, and discontinued its 2G cellular network coverage on December 31, 2016. Once the 2G cellular network was discontinued, there was no access to the INFINITI Connection features without a TCU hardware upgrade. Because AT&T will shut down its 3G network on December 31, 2021, INFINITI is discontinuing this Client Satisfaction Initiative to upgrade from 2G to 3G compatible hardware effective immediately. 3G services will continue to be provided until December 31, 2021. Vehicles equipped with a TCU that connects to the 3G cellular network will have no access to the INFINITI Connection features, including Emergency Calling and Automatic Collision Notification after that time. What Retailers Should Do Service Comm will deactivate PC451, PC452 and PC454 on any VINs on December 22, 2020. No further retailer action is required.
ITB17-042c2020-10-08. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE; 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.
ITB20-0032020-03-06. Service bulletin. WHEELS; TIRES:VALVE; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. 2014-2020 Q50 AND 2017-2020 Q60; TPMS SENSOR LEAKING AIR IF YOU CONFIRM The vehicle has the original equipment wheels and TPMS sensors (tire pressure sensors) installed. AND The owner states that one or more tires has a continuous air leak or looses air pressure multiple times over a 30 day period (approximatively 1 psi every 3 days). NOTE: The TPMS warning lamp may be ON (not flashing) with one or more of the following DTCs stored: • - C1704, C1705, C1706, C1707, C1730, C1731, C1732, C1733 • - If the TPMS warning lamp is flashing for more than one (1) minute this bulletin does not apply. Refer to the Electronic Service Manual (ESM) for further diagnostic information. ACTION 1. Confirm that air is leaking between the tire pressure sensor’s valve stem and valve nut of the affected wheel/tire. 2. Replace the valve stem washer/seal and the valve nut and then torque to the new specification.
ITB13-026k2020-02-07. Service bulletin. EQUIPMENT. 2014-2017 INFINITI; DISPLAY CONTROL UNIT REPLACEMENT This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-0402019-12-06. Service bulletin. POWER TRAIN. 2014-2015 Q50; MIL ON WITH DTC P0720 AND MAY HAVE HARSH SHIFTING AND/OR LACK OF POWER SERVICE INFORMATION If DTC P0720 OUTPUT SPEED SENSOR is stored, follow the diagnostic procedure in the ESM. If the diagnosis leads to output speed sensor replacement, replace the control valve. Do NOT replace the output speed sensor. • - Refer to the ESM for control valve replacement: TRANSMISSION DRIVELINE> TRANSAXLE TRANSMISSION > 7 AT: RE7R01A > REMOVAL AND INSTALLATION > CONTROL VALVE TCM. HINT: The vehicle may also have harsh shifting and/or lack of power.
ITB12-011o2019-11-07. Service bulletin. EQUIPMENT. TELEMATICS SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-0242019-10-08. Service bulletin. SEATS; ELECTRICAL SYSTEM; AIR BAGS. DTC B00A0-00 STORED IF YOU CONFIRM DTC B00A0-00 (OCCUPANT DETECTION SENSOR UNIT) is stored And OCS zero point reset cannot be performed And The following screen will display: ACTION 1. Check the Occupant Classification System (OCS) control unit using the ODS Analysis tool software. • Refer to SERVICE PROCEDURE on the next page. HINT: “OCS” may also be referred to as “ODS”. 2. Perform “75-zero RESET”.
ITB13-026J2019-08-19. Service bulletin. ELECTRICAL SYSTEM. 2014-2017 INFINITI; DISPLAY CONTROL UNIT REPLACEMENT This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB12-011n2019-07-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TELEMATICS SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-0082019-05-20. Service bulletin. EQUIPMENT. EXTERIOR CLEANING INFORMATION SERVICE INFORMATION When cleaning the exterior of an Infiniti vehicle, damage may occur when using a cleaner with too high of an alkaline concentration. - Always refer to the Appearance and care section of the related owner?s manual. - Not all cleaners are created equal. - Many cleaners come in concentrated form. - Alkaline cleaners (cleaners with a high pH value) can cause spots on paint and trim when not used as directed. - Some commercial car washes use cleaners with a high pH value. - When using cleaners that meet the conditions defined in the Appearance and care section, be sure to carefully follow the cleaner?s directions. - When finished cleaning/washing, rinse thoroughly with clean water. IMPORTANT: Damage to paint, glass, bright metal, or any other exterior surface caused by using improper cleaning products is not covered under warranty. Always refer to the Paint Incident Identification Manual (PIIM) and Assurance Products Reference Manual (APRM). Follow the guidelines in the PIIM and APRM for non-warrantable exterior body, glass, or painted surface quality issues. To access the PIIM and APRM, login to nnanet.com: - For the PIIM, select: MY LINKS > Warranty > Paint Incident Identification Manual - For the APRM, select: MY DOCUMENTS > Warranty > APRM See further information in this bulletin.
ITB19-0052019-03-25. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. CLOCK, AUDIO, HVAC OR NAVIGATION SETTINGS INTERMITTENTLY CHANGE ON THEIR OWN This bulletin applies only to vehicles equipped with INFINITI InTouch (Intelligent Key). SERVICE INFORMATION An Intelligent Key, for the applied vehicles with INFINITI InTouch?, has the abillity to trigger specific customized settings for the radio, clock, heating and air conditioning (HVAC) and navigation that are unique to that key, and each Intelligent Key for a specific vehicle may have different settings stored. EXAMPLE: The vehicle may be driven by more than one person, and each driver has a personal Intelligent Key. Each driver may adjust their preferred vehicle settings differently. If two or more Intelligent Keys with different stored settings are unintentionally interchanged, one or more of the following perceived issues might be reported by the customer(s). - Radio ? Presets are lost or change - Clock ? Settings are not showing the correct time due to day-light savings or the selected region (time zone) - HVAC ? Controls are set differently - Navigation ? Settings suddenly altered If any of these perceived issues are present: - Confirm if there are multiple Intelligent Keys being used by the customer(s) interchangeably, and if so, verify that each key?s settings are different. NOTE: Customer may not recognize that different Intelligent Keys are linked differently.
ITB16-012b2019-03-25. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL. 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.
ITB19-0012019-02-19. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. CHASSIS CONTROL MODULE DTC INFORMATION SERVICE INFORMATION If one or more of the following Chassis Control DTCs are stored: - C1BA0-00 - (CHASSIS CONTROL BRAKE SYSTEM) - C1B90-00 - (DIRECT ADAPTIVE STEERING SYSTEM) - C1B92-00 - (BRAKE CONTROL SYSTEM) - C1B93-00 - (ENGINE/HEV SYSTEM) - C1B94-00 - (TRANSMISSION SYSTEM) And One or more additional DTCs, other than those above, are also stored in a control unit other than the Chassis Control Module. - Perform the diagnostic/repair procedures for the additional DTCs of the other control unit FIRST. - Refer to the Electronic Service Manual (ESM) for DTC specific diagnostic information. Do not replace the CHASSIS CONTROL MODULE (CONTROLLER ASSY-IDM) if additional DTCs are present.
ITB17-042b2019-02-19. Service bulletin. ENGINE AND ENGINE 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.
ITB13-044g2019-02-19. Service bulletin. ENGINE AND ENGINE COOLING. ALL MODEL YEAR 2012 AND NEWER INFINITI VEHICLES; EVAP LEAK DTC P0442, P0455, P0456 INFORMATION This bulletin has been amended. See Amendment History on the last page. Please discard previous versions of this bulletin.
ITB13-026i2019-02-19. Service bulletin. EQUIPMENT:ELECTRICAL. 2014-2017 INFINITI VEHICLES; DISPLAY CONTROL UNIT REPLACEMENT This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
ITB12-011m2019-02-19. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TELEMATICS SERVICE INFORMATION This bulletin applies only to vehicles equipped with factory Navigation system. This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB18-0392019-01-07. Service bulletin. AIR BAGS. AIR BAG WARNING LIGHT FLASHING INDICATING SYSTEM DIAGNOSTIC MODE IF YOU CONFIRM The air bag warning light is flashing slowly (repeating 2 seconds ON, 2 seconds OFF). NOTE: If this should occur, the Air Bag Diagnosis Sensor Unit is in Diagnostic Mode and needs to be returned to User Mode. ACTION 1. Use CONSULT-III plus to check for Air Bag DTCs and perform repairs as needed. 2. Return the Air Bag Diagnosis Sensor Unit to User Mode.
Revision 1-IEVAP2019-01-07. Service bulletin. ENGINE; EQUIPMENT. OBD II EVAP Tube Warranty Enhancement The update below was sent out to Regions and Retailers in August of this year. We are re-circulating this update to make regional and retailer personnel aware that we are re-notifying clients at this time.

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