Classification:

Reference:

AN20-020G

Date:

NTB20-046G

January 29, 2024

VOLUME KNOB DOES NOT FUNCTION PROPERLY
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.

APPLIED VEHICLES:

2019-2020 Altima (L34)
2018-2020 Kicks (P15) – SV and SR
2019-2020 Murano (Z52)
2019 Sentra (B17) – SV, SR, SR Turbo, SL, and NISMO
2020 Versa (N18) – SV and SR

IF YOU CONFIRM
The customer states the speaker volume does not change or changes erratically when
rotating the volume knob.

ACTION
1.

Rotate the volume knob rapidly in two cycles, for a total of 60 seconds, to remove
contaminant build-up.

2.

Update the AV Control Unit.

IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you
will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it
contains information that is essential to successfully completing this repair.
Nissan Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are
properly trained individuals who have the equipment, tools, safety instruction, and know-how to do a job
properly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DO
NOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle.

1/3

SERVICE PROCEDURE
IMPORTANT: To ensure a successful repair, steps 2, 3, and 4 MUST be performed to
remove contaminant build-up on the full 360° radius of the electrical components internal to
the volume knob.
1.

Turn the audio and the ignition OFF.

2.

Rotate the volume knob clockwise and
counterclockwise approximately 180°
as rapidly as possible for 30 seconds
(Figure 1).

3.

Rotate the volume knob 180° from its
current position to remove the
contaminant from the opposite side of
the electrical component internal to the
volume knob.

Rotate knob 180°

4.

Rotate the volume knob clockwise and
counterclockwise as rapidly as
possible for another 30 seconds.

5.

Update the AV Control Unit.

Figure 1
(Altima shown, other vehicles are similar)

HINT: Refer to the Infotainment Software Update Utility, located in ASIST under
SPECIALTY TOOLS  Infotainment Software Updates, for the latest infotainment
update-software and infotainment update procedures.
IMPORTANT: Refer to the next page for claims information. DO NOT use the claims
information from the Infotainment Software Update Utility.

6.

After the AV Control Unit has been updated, verify the volume knob functions
correctly.


If the volume knob is still not functioning properly, return to ASIST for further
diagnostic information.

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NTB20-046G

CLAIMS INFORMATION
Submit a Primary Operation (PO) type line claim using the following claims coding:
DESCRIPTION
Update Display (AV) Control Unit – Includes Rotate
Knob

OP CODE

SYM

DIA

FRT

RX9AAA

ZE

32

0.4

AMENDMENT HISTORY
PUBLISHED DATE REFERENCE

DESCRIPTION

June 26, 2020

NTB20-046

Original bulletin published

July 29, 2020

NTB20-046a

APPLIED VEHICLES revised

August 21, 2020

NTB20-046b

APPLIED VEHICLES revised

August 26, 2020

NTB20-046c

NOTE added to step 8 and APPLIED VEHICLES
revised

February 3, 2021

NTB20-046d

Classification number updated

February 7, 2022

NTB20-046E

APPLIED VEHICLES revised, and Bosch contact
information removed from page 2 and step 10

April 3, 2023

NTB20-046F

Changes made throughout

January 29, 2024

NTB20-046G

Revised to reference the Infotainment Software
Update Utility in ASIST instead of NTB23-018

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NTB20-046G