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Service bulletins for the 2018 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.

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

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Bulletins, newest first
ITB12-011i2018-01-29. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TELEMATICS SERVICE INFORMATION This bulletin applies to vehicles that are equipped with factory Navigation system. This bulletin has been amended. Changes have been made throughout. You must read the entire bulletin to understand all the changed information. Please discard all previous versions of this bulletin.
ITB09-039e2018-01-29. Service bulletin. VISIBILITY:WINDSHIELD. WINDSHIELD CRACKING This bulletin has been amended to apply to the latest models and model years. Also, warranty information on pages 1 and 8 has been updated. No other changes have been made. Please discard previous versions of this bulletin.
ITB00-024g2018-01-29. Service bulletin. SERVICE BRAKES. BRAKE NOISE/JUDDER/PEDAL FEEL DIAGNOSIS AND REPAIR This bulletin has been amended to include vehicles built up to the publication date. Also, tips for using the ProCut? brake lathe were added on page 8, and a Brake Noise Diagnostic Worksheet was added on page 10. Please discard previous versions of this bulletin.
ITB17-0582018-01-29. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. INTRODUCTION Infiniti is conducting this voluntary emission recall campaign on certain specific model year 2016-2018 Q50 and 2017 Q60 vehicles. The Engine Control Module (ECM) will be reprogrammed so that in the event of an automatic transmission diagnostic issue, the diagnosis signals will be communicated properly and a Malfunction Indicator Light (MIL) will be properly illuminated to notify the driver. This service will be performed at no charge to the customer for parts or labor. IDENTIFICATION NUMBER Infiniti has assigned identification number R1726 to this campaign. This number must appear on all communication and documentation of any nature dealing with this campaign. DEALER RESPONSIBILITY It is the dealer?s responsibility to check Service Comm or Dealer Business Systems (DBS) National Service History for the campaign status on each vehicle falling within the range of this voluntary emissions recall which for any reason enters the service department. This includes vehicles purchased from private parties or presented by transient (tourist) owners and vehicles in a dealer?s inventory.
ITB13-026g2018-01-29. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. DISPLAY CONTROL UNIT REPLACEMENT This bulletin has been amended. The Applied Vehicles section and Part 1 of the Service Procedure have been revised. No other changes have been made. Please discard previous versions of this bulletin.
ITB09-015h2017-10-15. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 12 VOLT BATTERY STORAGE AND MAINTENANCE FOR NEW VEHICLES IN RETAILER INVENTORY This bulletin has been amended throughout. Please discard all previous versions of this bulletin.
ITB12-011h2017-10-12. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TELEMATICS SERVICE INFORMATION This bulletin applies to vehicles equipped with factory Navigation system. This bulletin has been amended. Information for several 2018 models has been added. No other changes have been made. Please discard all previous versions of this bulletin.
ITB11-005c2017-10-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; WHEELS. WHEEL BALANCING SERVICE INFORMATION This bulletin has been amended. The publication date has been revised to include the latest models and model years. No other changes have been made. Please discard previous versions of this bulletin.
ITB17-042a2017-09-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). INFINITI; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. The APPLIED VEHICLES and CLAIMS INFORMATION sections have been revised. No other changes have been made. 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.