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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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Only bulletins with component: 12-volt battery are shown. Show all

Bulletins, newest first
ITB22-0062022-03-12. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. BATTERY QUICK CHARGE NOTICE SERVICE INFORMATION When charging the vehicle’s 12 volt battery with the high amperage quick charge function, the ignition should never be ON, or turned ON, while charging. Attempting to start the vehicle, or turning the ignition ON, while using the high amperage quick charge could potentially damage the fuel pump control module. • Only turn the ignition ON when either the ESM or a technical service bulletin service procedure states to do so, and only while using a battery maintainer or smart charger set to reflash mode, or a similar setting. • Battery voltage should not exceed 16V during a reprograming operation.
ITB18-0222018-09-17. Service bulletin. ELECTRICAL SYSTEM; ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 2014 ? 2017 Q50 HYBRID; ENGINE STOPS RUNNING IN EXTREMELY HOT AMBIENT TEMPERATURES AND DTC P3182 STORED IF YOU CONFIRM Engine stops running in extremely hot ambient temperatures (greater than 110 degrees Fahrenheit) and DTC P3182 HV BATTERY SYSTEM is stored. ACTION 1. Refer to step 14 in the SERVICE PROCEDURE to see if this bulletin applies to the vehicle you are working on. 2. If this bulletin applies, reprogram the Hybrid Powertrain Control Module (HPCM).
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.
ITB15-026A2017-02-13. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. "INFINITI; SIGNAL TECH-II INTELLIGENT KEY BATTERY TEST AND SIGNAL CHECK THIS BULLETIN HAS BEEN AMENDED. CHANGES HAVE BEEN MADE THROUGHOUT. PLEASE DISCARD PREVIOUS VERSIONS OF THIS BULLETIN. IF YOU CONFIRM THE INTELLIGENT KEY INTERMITTENTLY OR CONTINUOUSLY DOES NOT FUNCTION. ACTION CHECK THE BATTERY CONDITION WITH THE SIGNAL TECH-II “I-KEY BATTERY TEST”."
ITB09-059D2017-02-13. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. "INTELLIGENT KEY BATTERY VOLTAGE CHECK AND REPLACEMENT THIS BULLETIN HAS BEEN SUPERSEDED BY ITB15-026. INFINITI; SIGNAL TECH-II INTELLIGENT KEY BATTERY TEST AND SIGNAL CHECK 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.