Service bulletin P4204OL

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)
Type	Service bulletin
NHTSA id	10192309
Published by NHTSA	2021-05-10
Manufacturer's number	P4204OL
Manufacturer's date	2014-01-27
NHTSA component	STEERING; STEERING:AUTOMATED/ADAPTIVE STEERING

NHTSA's summary

Infiniti is conducting a Voluntary Service Campaign on certain specific Model Year 2014 Q50 and Q50 Hybrid vehicles to replace 3 control units, reprogram, calibrate and reset the Direct Adaptive Steering (DAST).

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

Steering

Vehicles listed
INFINITI Q50	2014

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

Recalls for the same vehicles and component
16V430000	2016-06-13. STEERING:AUTOMATED/ADAPTIVE STEERING; STEERING:ELECTRIC POWER ASSIST SYSTEM
2016296	2016-06-10. Steering
13V588000	2013-11-20. STEERING:AUTOMATED/ADAPTIVE STEERING; STEERING:ELECTRIC POWER ASSIST SYSTEM
2013410	2013-11-19. Steering

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
P5326OL	2021-05-10. Service bulletin. 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.
P5323OL	2021-05-10. Service bulletin. 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.
P5323	2021-05-10. Service bulletin. 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.
P5326	2021-05-10. Service bulletin. 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.
ITB15001A	2021-05-10. Service bulletin. IF YOU CONFIRM The steering wheel makes a faint squeaking/ticking noise when turned left or right. NOTE: Due to the faint nature of this noise it may be necessary to lift front wheels off of the ground so that it can be isolated. ACTION Remove driver?s side airbag and apply felt tape with the SERVICE PROCEDURE starting on page 2. See this bulletin for further detail.
ITB10037D	2021-05-10. Service bulletin. SERVICE INFORMATION The Applied Vehicles are equipped with a new version of Intelligent Key presets memory. Each Intelligent Key can be programmed to have its own unique set of presets for certain vehicle systems. Vehicle systems that are linked with Intelligent Key include: - Automatic Drive Positioner (includes driver seat, steering column, and mirror position memory) - Audio (station presets, etc.) - Auto air conditioning and heating (retains the last temperature and mode setting for each Intelligent Key user) - Navigation system (retains the last settings [e.g., Birdview] and clock display preference for each Intelligent Key user) See this bulletin for further detail.
ITB15025	2021-05-10. Service bulletin. SERVICE INFORMATION When servicing run flat tires or low profile tires: - Special equipment and procedures are required to avoid damage. - Specifically, Tire Pressure Monitor transmitters (TPMS sensors) can be damaged when improperly dismounting and mounting tires. - TPMS sensors becoming damaged during mounting or dismounting tires are not covered under warranty. - To avoid such damage, ensure that the tire changer being used and the operator of the tire changer are capable of servicing run flat and low profile tires. - Operator?s manuals for such tire changers must be followed. See this bulletin for further detail.
ITB14045	2021-05-10. Service bulletin. IF YOU CONFIRM One or both steering wheel switch chrome finishers on an Applied Vehicle has come off. ACTION Follow the procedure in this bulletin to install the new steering wheel switch chrome finisher(s) listed in the Parts Information section. NOTE - Do not replace the steering wheel assembly for this incident, if it should occur. See this bulletin for further detail.
ITB14046	2021-05-10. Service bulletin. SERVICE INFORMATION When performing Direct Adaptive Steering (DAST) Calibration (Mode 1): Always use an alignment rack with the front wheels positioned on the turntables and the pins removed. The front wheels must be allowed to move freely. DO NOT perform DAST Calibration (MODE 1) with the front wheels in any other position then listed above. To prevent damaging the spiral cable during DAST Calibration (MODE 1), follow instruction in the ESM. See this bulletin for further detail.
ITB14019	2021-05-10. Service bulletin. IF YOU CONFIRM: While driving, the Vehicle Dynamic Control (VDC) activates when conditions do not call for VDC activation (VDC activation is not needed). ACTION: 1. Check F/B ANGLE 2 in EPS/DAST3. 2. If needed, perform Calibration and Confirmation Procedure. See this bulletin for further detail.