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Service bulletins for the 2016 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.

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

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Bulletins, newest first
ITB09039C2021-05-10. Service bulletin. VISIBILITY. SERVICE INFORMATION The purpose of this bulletin is to give Infiniti dealers guidelines to help determine if windshield breakage is covered under warranty or is the customer?s responsibility. Nissan North America (NNA) is not responsible for damage to glass that is a result of objects striking or scratching the glass. However, NNA is responsible for manufacturing issues such as distorted glass and cracks that are due to improper installation or damage to the glass during vehicle assembly. NNA typically does not find any type of cracks in the windshield due to stress after the dealership PDI. See this bulletin for further detail.
ITB160052021-05-10. Service bulletin. ELECTRICAL SYSTEM. SERVICE INFORMATION The Intelligent Keys used on the various Infiniti vehicles may not be interchangeable between models and years. See this bulletin for further detail.
ITB160032021-05-10. Service bulletin. ELECTRICAL SYSTEM. SERVICE INFORMATION Whenever all Intelligent Keys of an APPLIED VEHICLE are lost AND the BCM is in Transit Mode, the BCM does not need to be replaced when replacing the lost Intelligent Keys. When all of the following conditions of an APPLIED VEHICLE are verified: - The BCM is in Transit Mode. - The BCM will not respond to CONSULT-III plus (C-III plus). It does not show up on System Call. - All Intelligent Keys are lost. DO NOT replace the BCM or ECM when replacing the lost Intelligent Keys. The procedure in this bulletin will get the existing BCM out of Transit Mode. See this bulletin for further detail.
ITB150232021-05-10. Service bulletin. EQUIPMENT:ELECTRICAL. SERVICE INFORMATION When replacing both of the vehicle?s I-Keys, due to being lost prior to vehicle delivery, new I-Keys can now be registered without the BCM (or ECM) being replaced. Do not replace the BCM (or ECM) before replacing I-Keys for theApplied Vehicles. Please see this bulletin for further details.
ITB150202021-05-10. Service bulletin. WHEELS. SERVICE INFORMATION The appearance of painted alloy wheels can be damaged if acidic cleaners are used. DO NOT use Chrome Wheel Cleaner on Painted Wheels. Many chrome wheel cleaners have acidic ingredients. Make sure to follow all instruction in the Appearance and Care Section of the Owner?s Manual. Damage to wheel appearance due to the use of inappropriate chemicals or cleaning products is not covered under warranty. See this bulletin for further detail.
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.
ITB18-010C2021-05-09. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. SERVICE INFORMATION FOR DTCS B2EF0 AND B130C This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB16-012C2021-05-09. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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.
ITB13-052C2021-05-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended to update the Applied Vehicles. No other changes were made. Please discard previous versions of this bulletin.
ITB21-0072021-05-07. Service bulletin. ENGINE AND ENGINE COOLING. MIL ON WITH DTC P062F AND/OR P0603 STORED IF YOU CONFIRM The MIL is ON and DTC P062F (EEPROM) and/or P0603 (ECM BACK UP/CIRCUIT) is stored, And The customer stated the vehicle was recently started after sitting for an extended period of time (i.e., the battery voltage was low while attempting to start the engine). ACTION 1. Test the vehicle’s 12 volt battery using the Midtronics DSS-5000. Recharge or replace the battery if necessary. 2. Erase all DTCs.
ITB16-003A2021-04-14. Service bulletin. ELECTRICAL SYSTEM. INFINITI; REPLACING LOST INTELLIGENT KEYS FOR APPLICABLE 2016 MODEL YEAR VEHICLES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB15-026C2021-04-14. Service bulletin. ELECTRICAL SYSTEM. INFINITI; SIGNAL TECH-II INTELLIGENT KEY BATTERY TEST AND SIGNAL CHECK This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB15-023A2021-04-14. Service bulletin. ELECTRICAL SYSTEM. 2016 INFINITI; REGISTRATION OF NEW I-KEYS WHEN ORIGINALS ARE MISSING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-024A2021-04-13. Service bulletin. 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.
ITB17-042D2021-04-13. 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.
ITB17-005A2021-04-08. Service bulletin. ELECTRICAL SYSTEM. BLUETOOTH, USB, AND AUX FUNCTION DIAGNOSTIC TOOL This bulletin has been amended. See AMENDMENT HISTORY on page 3. Please discard previous versions of this bulletin.
ITB16-006A2021-04-08. Service bulletin. ELECTRICAL SYSTEM. INFINITI; FRONT SONAR PARKING SENSOR SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB13-026L2021-04-08. 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.
ITB12-011P2021-04-08. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. TELEMATICS SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB18-040d2021-03-09. Service bulletin. ELECTRICAL SYSTEM. SOFTWARE UPDATES FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
ITB20-023a2021-03-06. Service bulletin. ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE; EQUIPMENT. LANE CAMERA AIMING VEHICLE REFERENCE VALUES NOT IN ESM This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-013b2021-03-06. Service bulletin. FORWARD COLLISION AVOIDANCE; LANE DEPARTURE: SENSING SYSTEM: OTHER. AEB WARNING LIGHT BLINKING 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.
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.
ITB19-013a2020-12-08. Service bulletin. FORWARD COLLISION AVOIDANCE; LANE DEPARTURE: SENSING SYSTEM: CAMERA. AEB WARNING LIGHT BLINKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. 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.