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Service bulletins for the 2016 Infiniti QX50

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.

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

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By component

By trouble code

Bulletins, newest first
ITB15-026D2021-07-10. Service bulletin. ELECTRICAL SYSTEM. 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.
ITB13-008B2021-07-10. Service bulletin. POWER TRAIN. CLICKING NOISE FROM FRONT OR REAR AXLE DURING TAKE-OFF/ACCELERATION 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.
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.
ITB160082021-05-10. Service bulletin. ELECTRICAL SYSTEM. IF YOU CONFIRM The MIL is "ON" with DTC P0603 (ECM BACK UP/CIRCUIT). ACTION 1. Confirm that the battery voltage is 11 volts, or more, with the ignition ON (engine OFF, not running). 2. Erase DTC 3. Perform DTC confirmation steps in the Service Procedure. 4. Confirm 1st trip DTC P0603 is not stored. NOTE: P0603 is often the result of low battery voltage, discharged battery or battery terminal disconnections. Please see this bulletin for furtner details.
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.
ITB13007A2021-05-10. Service bulletin. VISIBILITY. SERVICE INFORMATION Windshield "foreign material" that is on the surface of the glass in some cases can be cleaned off with a very particular type and grade of steel wool. * Most any foreign material on the surface of the Windshield can be cleaned off by using #0000 super fine steel wool. >The #0000 grade super fine steel wool can be found in most hardware stores. Please see this bulleitn for further details.
ITB09015G2021-05-10. Service bulletin. EQUIPMENT. SERVICE INFORMATION Design and process changes have been made to improve battery voltage at dealer receipt. Our goal is to deliver vehicles to customers with a 12 volt battery in excellent condition. Proper dealership storage and maintenance of vehicle 12 volt batteries is essential to insuring good battery operating life and customer satisfaction. Dealers are responsible for maintaining vehicles in their inventory. 12 volt batteries in vehicle inventory should always be kept at a full charge to prevent excessive discharge during storage and so they are ready for delivery to customers at any time. See this bulletin for further detail.
ITB11042D2021-05-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. IF YOU CONFIRM The customer states HomeLink will not operate or has improper operation. ACTIONS 1. To significantly reduce unnecessary repairs, make sure: a. The vehicle is not in "Transit Mode" (if equipped). - Not in Transit Mode: With the turn signal switch is in the OFF (center) position, turn the ignition from OFF to ON. If the turn signal indicators stay OFF (do not illuminate), the vehicle is not in Transit Mode. b. The "Extended Storage Switch" (if equipped) is in the "Customer Delivery" position (pushed in). - The Extended Storage Switch is located on the fuse block that is located in the interior of the vehicle. 2. Confirm the customer is familiar with the HomeLink programming procedure located in the vehicle?s owner?s manual. 3. Test HomeLink operation with special tool HomeLink Transmitter Tester J-41540. See this bulletin for further detail.
ITB13039A2021-05-10. Service bulletin. BACK OVER PREVENTION; WHEELS; SERVICE BRAKES; LANE DEPARTURE. SERVICE INFORMATION This bulletin has compiled Tire Pressure Monitor System (TPMS) and Low Tire Pressure Warning System (LTPWS) information for: - Basic diagnosing of TPMS/LTPWS systems - Radio frequency interference causing a "No Data" (C1708, C1709, C1710, C1711) condition - Sensor leaks - Moving TPMS/LTPWS wheel assemblies from one vehicle to another and TPMS/LTPWS sensor registration - Air pressure changes with altitude and ambient temperatures - Aftermarket tire sealers - Aftermarket wheels - Inflating/deflating tires with TPMS/LTPWS sensors See this bulletin for further detail.
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.
ITB17-015B2021-05-08. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. NAVIGATION SYSTEM REBOOTS WHEN SXM TRAFFIC IS ENABLED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB16-008C2021-05-07. Service bulletin. ENGINE AND ENGINE COOLING. MIL ON WITH P0603 STORED FOR ECM BACK UP CIRCUIT This bulletin has been amended. See AMENDMENT HISTORY on page 3. 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.
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.
ITB13-008a2020-02-07. Service bulletin. SUSPENSION. CLICKING NOISE FROM FRONT OR REAR AXLE DURING TAKE-OFF/ACCELERATION 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.
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.

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