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Service bulletin ITB18-022

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10144485
Published by NHTSA2018-09-17
Manufacturer's numberITB18-022
Manufacturer's date2018-06-28
NHTSA componentELECTRICAL SYSTEM; ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY

NHTSA's summary

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).

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine, 12-volt battery

Trouble codes named

P3182

Vehicles listed
INFINITI Q50 HYBRID2014, 2015, 2016, 2017 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
ITB22-0062022-03-12. Service bulletin. 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.
ITB09-015h2017-10-15. Service bulletin. 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. "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. "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."
ITB15-0352016-06-22. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
ITB15-0342016-06-22. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
ITB-13-033A2014-01-09. Service bulletin. INFINITI: SOME VEHICLES MAY EXPERIENCE THE POWER STEERING LIGHT TO BE ON PAIRED WITH DTC C13EB AND C13E9. THE STEERING WHEEL MAY BE OFF-CENTER AND POWER STEERING WILL GO INTO REDUCED POWER ASSIST MODE. THIS IS DUE TO LOW BATTERY VOLTAGE CONDITION. *JS