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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
NTB03-074P2022-01-08. Service bulletin. EXTERIOR LIGHTING. HEADLAMP, FOG LAMP, OR REAR COMBINATION LAMP FOGGING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB17-033C2022-01-08. Service bulletin. EXTERIOR LIGHTING. CLEANING FRONT OR REAR COMBINATION LAMP ASSEMBLIES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB03-051P2022-01-08. Service bulletin. EXTERIOR LIGHTING. HEADLAMP, FOG LAMP, OR REAR COMBINATION LAMP FOGGING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
PC835 - R1606 Ca2021-10-07. Service bulletin. SEATS; AIR BAGS; ELECTRICAL SYSTEM. R1606 Occupant Classification System (OCS) Campaign Quality Review ***** Retailer Announcement ***** INFINITI is committed to the safety, security and satisfaction of our clients and is conducting a quality review of specific repairs for a previously completed campaign (R1606). If the VIN displays QA campaign ID PC835, retailers should perform the procedure attached to this communication even if the National Service History indicates the remedy action was previously performed for the vehicle. VINs identified with this QA campaign ID are being inspected to ensure the recall remedy was performed and documented in accordance with INFINITI’s quality standards. ***** What Retailers Should Do ***** PLEASE FOLLOW THE ATTACHED PROCEDURE: 1. Verify if vehicles are affected by this quality action using Service Comm or DBS National Service History – Open Campaigns I.D. PC835. 2. Retailers should complete this action on both retailed vehicles and previously owned vehicles within retailer inventory. • Retailers should follow all stop sale and do not drive, loan, sell, or trade instructions for campaigns. 3. Retailers will need to file the appropriate claim using applicable Op Code information in the repair procedure attached to this announcement to close the campaign. NOTE: Parts replaced under this activity will be placed on parts return. Monitor the Warranty Parts Return Website located at NNAnet.com for notifications.
ITB16-012D2021-07-10. Service bulletin. ELECTRICAL SYSTEM. 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.
ITB11021B2021-05-10. Service bulletin. EQUIPMENT; TIRES. SERVICE INFORMATION Temporary tire Flat Spotting is common on New Dealer In-Stock vehicles that have not been occasionally moved. Flat Spotting can occur after the vehicle has been parked (not moved) for a few days, or longer. In most cases it is temporary. In extreme cases it can be permanent. Vehicles should be moved every 30 days, in one direction only, enough to rotate the tires 90° (see Figure 1). Moving vehicles as shown in this bulletin will prevent tire Flat Spotting. See this bulletin for further detail.
ITB09041A2021-05-10. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:APPLIANCE:AIR CONDITIONER. IF YOU CONFIRM A refrigerant leak at a refrigerant pipe/hose joint location, ACTIONS 1. Inspect the metal surfaces of the pipe/hose joint for damage or contamination. NOTE: Do not replace a refrigerant pipe, hose, or other A/C component if an o-ring seal will solve the leak incident, if it should occur. 2. If no damage is found to the joint metal surfaces, replace the O-ring seal. See this bulletin for further detail.
ITB09063B2021-05-10. Service bulletin. EQUIPMENT:OTHER:LABELS; FORWARD COLLISION AVOIDANCE. SERVICE INFORMATION Because of collision damage or other vehicle repair, a replacement "Certification Label" or "VIN Plate / Label" may be needed. These items may be available from Infiniti by request if certain criteria are met. This bulletinlists the criteria and provides an application form for such replacements. See this bulletin for further detail.
ITB15021A2021-05-10. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP. SERVICE INFORMATION If the clip for the fuel filler cap tether becomes lost or is detached for any reason, it is no longer necessary to replace the fuel filler cap. The clip or "pin" is now available as a separate service part. NOTE - Do not replace the fuel filler cap if only the pin is needed. See this bulletin for further detail.
ITB13026E2021-05-10. Service bulletin. ELECTRICAL SYSTEM:ADAS:AUTONOMOUS/SELF DRIVING:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:FILTER/SCREEN. SERVICE INFORMATION If the Display Control Unit (DCU) needs to be replaced on an Applied Vehicle for any reason, follow the steps in the Service Procedure of this bulletin. See this bulletin for further detail.
ITB160142021-05-10. Service bulletin. ENGINE AND ENGINE COOLING. IF YOU CONFIRM The MIL is ON with P0116 Engine Coolant Temperature (ECT SENSOR) stored, and There are no drivability issues. ACTION 1. Refer to step 6 in the SERVICE PROCEDURE to confirm if ECM reprogramming applies. 2. If it applies, reprogram the ECM. See this bulletin for further detail.
ITB15018A2021-05-10. Service bulletin. SERVICE BRAKES, HYDRAULIC. IF YOU CONFIRM: "Brake Judder" during braking, especially when braking at highway speeds. Symptoms of "brake judder": - steering wheel shake - body vibration - brake pedal pulsation IMPORTANT NOTES: If any symptom above occurs when cruising or coasting (not braking), it is not "Brake Judder" and may be tire/wheel related. DO NOT CONFUSE "Brake Judder" with the rapid consistent-speed pedal pulsation that may be felt and only occurs when ABS is activated during hard braking or on slippery road surfaces. ACTION: 1. Inspect the front brake rotors to determine if "machining" ("turning") is possible or if replacement is necessary. 2. Replace both pad pins in both front 4-piston calipers (see PARTS INFORMATION). 3. Replace the front brake pads (see PARTS INFORMATION). See this bulletin for further detail.
ITB03051J2021-05-10. Service bulletin. EXTERIOR LIGHTING. SERVICE INFORMATION Occasionally customers may notice water vapor or fog in the headlamps. The information, illustrations, and flow chart in this bulletin are provided to help you in determining if an incident for water/condensation in the headlamps is normal or not. Infiniti?s new vehicle limited warranty does not cover physically damaged (cracked or broken) headlamps. All current headlamp assemblies are vented to the atmosphere (not sealed). - This is necessary to allow for expansion and contraction of air from temperature "variations" (warmer or colder) without damage to the headlamp. - Moisture in the air sometimes "travels" into and out of the headlamp assembly through these vents. - Certain environmental conditions may cause moisture to condense. - The fogging/cloudiness should disappear over time when the headlamp is in a dry environment. See this bulletin for further detail.
ITB15034B2021-05-10. Service bulletin. ELECTRICAL SYSTEM. INTRODUCTION Infiniti is conducting a Voluntary Service Campaign on certain specific 2014-2015 Q50 Hybrid cold state vehicles (listed below) to replace the 12 volt battery. This service will be performed at no cost to the customer for parts or labor. This campaign will apply to vehicles in the following States, only: Colorado, Connecticut, Idaho, Illinois, Indiana, Iowa, Kansas, Maine, Massachusetts, Michigan, Minnesota, Montana, Nebraska, Nevada, New Hampshire, New York, North Dakota, Ohio, Pennsylvania, South Dakota, Utah, Vermont, Washington, Wisconsin, Wyoming. IDENTIFICATION NUMBER Infiniti has assigned identification number P5326 to this campaign. This number must appear on all communications and documentation of any nature dealing with this campaign. See this bulletin for further detail.
P5326B2021-05-10. Service bulletin. ELECTRICAL SYSTEM. This announcement has been updated to include New battery replacement instructions due to the parts shortage New Claims Information
P5323B2021-05-10. Service bulletin. ELECTRICAL SYSTEM. This announcement has been updated to include New battery replacement instructions due to the parts shortage New Claims Information
ITB160062021-05-10. Service bulletin. FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: SONAR/ULTRASONIC; EQUIPMENT. SERVICE INFORMATION When diagnosing the front sonar parking sensor for potentially unwanted activation (e.g. sonar activates with no obstacle ahead), inspect the front license plate, front license plate frame and if equipped, the front license plate bracket. See page 2 for example photos. The front sonar parking sensor may activate if: The front license plate is bent outward from its bracket (there is a gap between the license plate and the bracket) OR the front license plate frame is bent or loose and is hanging outward, away from the license plate and/or bracket (there is a gap between the license plate frame and the license plate and/or bracket) OR the bracket is loose and is hanging outward, away from the bumper (there is a gap between the bracket and the bumper). If any of these conditions are found, correct it by removing the gap (straighten the license plate, straighten and/or secure the license plate frame, or secure the bracket, as it applies). - Retest the operation of the front sonar parking sensor. If the issue is not resolved, go to ASIST and the related Electronic Service Manual (ESM) for further diagnosis. See this bulletin for further detail.
P5323A2021-05-10. Service bulletin. ELECTRICAL SYSTEM. 12-volt batteries necessary for replacement under P5323 or P5326 are currently on back order. We expect additional parts to arrive in late April.
P5326A2021-05-10. Service bulletin. ELECTRICAL SYSTEM. 12-volt batteries necessary for replacement under P5323 or P5326 are currently on back order. We expect additional parts to arrive in late April.
PC405A2021-05-10. Service bulletin. LATCHES/LOCKS/LINKAGES. Infiniti would like to remind retailers that the ?Q50 Client Appreciation? program (PC405) will expire on January 30th, 2016. Vehicles serviced on or after that date will no longer be eligible for the program.
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.
ITB160092021-05-10. Service bulletin. ELECTRICAL SYSTEM. SERVICE INFORMATION The function to detect the last item to trigger the vehicles theft alarm system can now be accessed with CONSULT-III plus (C-III plus). This function can be accessed by selecting: * Diagnosis (All Systems) or Diagnosis (One System). Then * BCM Then * THEFT ALM Then * Work Support Then * THEFT ALM TRG See this bulletin for further details.
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.
P5326OL2021-05-10. Service bulletin. ELECTRICAL SYSTEM; STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 - 2015 Q50 Hybrid cold state vehicles (listed below) to reprogram the Direct Adaptive Steering (DAST) and replace the 12 volt battery.
P5323OL2021-05-10. Service bulletin. STEERING. Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 - 2015 Q50 Hybrid cold state vehicles (listed below) to reprogram the Direct Adaptive Steering (DAST) and replace the 12 volt battery.

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