L-SB-0006-23

Rev1

February 13, 2023

Head Unit Software Update (Panasonic)
Service
Category

Audio/Visual/Telematics

Section

Navigation/Multi Info Display

Market USA

Applicability
YEAR(S)

MODEL(S)

2023 - 2024

ES250, ES300H, ES350,
RX350, RX350H, RX450H+,
RX500H, UX250H

2024

LC500, LC500C, LC500H

2023

LS500, LS500H

2022 - 2023

LX600

2022 - 2024

NX250, NX350, NX350H,
NX450H+

ADDITIONAL INFORMATION

REVISION NOTICE
January 26, 2024 Rev1:
 Applicability has been updated to include 2022 model year LX 600, and 2023 model year LS 500,
LS 500h, and 2022 and 2024 model year NX 250, NX 350, NX 350h, NX 450+, and 2023 – 2024
model year ES 250, ES 300h, ES 350, RX 350, RX 350h, RX 450h, RX 500h, UX 250h, and 2024
model year LC 500, LC 500c, LC 500h, vehicles.
 The Introduction, Software Update Information, and Software Update Procedures sections have
been updated.
Any previous printed versions of this bulletin should be discarded.

SUPERSESSION NOTICE
The information contained in this bulletin supersedes Service Bulletin No. L-SB-0007-22.
 Applicability has been updated to include 2023 model year LS 500, LS 500h, LX 600, and
2023 – 2024 model year NX 250, NX 350, NX 350h, NX 450h+, RX 350, RX 350h, RX 450h, RX 500h,
and 2024 model year LC 500, LC 500c, LC 500h, ES 250, ES 300h, ES 350, and UX 250h vehicles.
Service Bulletin No. L-SB-0007-22 is obsolete, and any printed versions should be discarded.

© 2024 Lexus, a division of Toyota Motor Sales, USA

Page 1 of 21

L-SB-0006-23

Rev1

February 13, 2023

Page 2 of 21

Head Unit Software Update (Panasonic)
Introduction

A head unit software update is now available for 2022 model year LX 600, NX 250, NX 350,
NX 350h, and NX 450h+ vehicles equipped with Lexus Multimedia (version 1020 or earlier). This
update provides improved performance and capability for the following:


User profile configuration and display.



Cloud Navigation and Intelligent Voice Assistant.



Mobile device connectivity.



On-screen display and system settings/configuration.



Security enhancements.

A head unit software update is now available for 2022 LX 600, NX 250, NX 350, NX 350h, and
NX 450h+ vehicles; and 2023 ES 250, ES 300h, ES 350, and UX 250h vehicles equipped with
Lexus Multimedia (earlier than version 1040). This software update includes the
following improvements:


Cloud navigation.



Intelligent assistant voice recognition.



Showing and controlling explicit audio content.



User interface.



Bluetooth®.



Bug fixes.

This software update removes the following feature:


Hybrid radio.

A head unit software update is now available for 2023 model year LX 600, NX 250, NX 350,
NX 350h, and NX 450h+ vehicles equipped with Lexus Multimedia (version 1040 or earlier). This
software update provides improved performance and capability for the following:


User profile.



Over-the-air (OTA) notifications.



Ability to search during a call.



Bug fixes settings/configuration.



Security enhancements.

© 2024 Lexus, a division of Toyota Motor Sales, USA

L-SB-0006-23

Rev1

February 13, 2023

Page 3 of 21

Head Unit Software Update (Panasonic)
Introduction (continued)

A head unit software update is now available for 2022 – 2023 model year LX 600 vehicles;
2023 – 2024 model year ES 250, ES 300h, ES 350, RX 350, RX 350h, RX 450h+, RX 500h, and
UX 250h vehicles; 2022 – 2024 model year NX 250, NX 350, NX 350h, and NX 450h+ vehicles;
2023 model year LS 500 and LS 500h vehicles; 2024 model year LC 500, LC 500C, and LC 500h
vehicles equipped with Lexus Multimedia (earlier than version 2050). This software update
includes the following improvements:


User interface design.



Intelligent assistant.



Navigation lane guidance.



Phone book search.



Bug fixes.

Vehicle operators can perform this update directly by accepting the on-screen notification
(see Figure 1), advising the software update is available, or by locating the software update from
the Settings menu and initiating the available update (see Figure 2). The release notes text below
will be displayed to the customer:
“This software update includes improvements for user interface design, intelligent assistant,
navigation lane guidance, phone book search, and bug fixes.”
Figure 1.

Figure 2.

If it is necessary to perform the software update for a customer, follow the software update
procedures in this bulletin.
This is a phased rollout, which means that as time progresses, more vehicles will receive the
update notification and ability to update the head unit. This timing will vary by location and may not
display for every vehicle in one location at the same day/time.

Warranty Information
OP CODE

DESCRIPTION

TIME

OFP

T1

T2

N/A

Not Applicable to Warranty

–

–

–

–

© 2024 Lexus, a division of Toyota Motor Sales, USA

L-SB-0006-23

Rev1

February 13, 2023

Page 4 of 21

Head Unit Software Update (Panasonic)
Software Update Information

The following conditions and performance improvements for Lexus Multimedia are addressed
with this head unit software update for versions 1020 or earlier:


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Abnormal Apple CarPlay® operation when multiple phones are connected via Bluetooth®.
Unable to switch users when not in Park; the button is not grayed out.
Abnormal color palette operation when using illumination customization.
Contact phone number is not displayed when using voice recognition.
Error banner missing or abnormal operation.
Audio mode will change when searching for genres in Sirius XM® with voice recognition.
Unable to change volume using voice recognition.
Inconsistent climate control adjustments when using voice recognition.
Intermittent black or white screen after shifting out of reverse or while driving.
When using voice recognition to send a text message, the message is sent to a
different number.
Date labels do not align with the bar graphs in the trip information screen.
Multiple degree “°” symbols displayed in the voice recognition screen.
Unable to perform a system reset while listening to USB audio.
“Profile not loaded” popup is shown through the startup animation.
Intermittent rebooting.
Abnormal operation when switching audio modes.
Vehicle screen appears when requesting seat heater screen via voice recognition.
Intermittent startup animation flickering.
Poor appearance of the keyboard settings screen.
Wi-Fi connection history is intermittently not retained.
Wake word setting intermittently changes from OFF to ON.
Multi-information Display (MID) incorrectly displays volume or mute changes.
Intermittent Spanish text is displayed when the selected language is French, or vice versa.
Abnormal USB audio playback when using voice recognition.
Intermittent daytime display after IG-OFF.
Two favorites added when one channel is selected.
Some items are displayed in English instead of the system-selected language (other
than English).



Projection icon is displayed next to the phone not actively connected to projection mode.



Voice recognition in Amazon MusicTM is not consistent with other audio modes.

© 2024 Lexus, a division of Toyota Motor Sales, USA

L-SB-0006-23

Rev1

February 13, 2023

Page 5 of 21

Head Unit Software Update (Panasonic)
Software Update Information (continued)



When switching modes to Bluetooth® with no media files present an abnormal screen
is displayed.



Daylight savings time intermittently turns OFF.



When switching audio mode to USB audio, the MID does NOT show USB text.



Unable to start Remote Park while phone is connected to wireless Apple CarPlay®.



Common voice recognition commands screen is not displayed when using voice
recognition to ask for help in the Climate, Weather, and Settings screen.



Poor music streaming quality when streaming from Samsung ® devices.



While listening to Apple Music®, when the next song starts the previous song information
will still be displayed.



Incorrect scaling of traffic colors in the navigation map.



Intermittent DTC U131457 present.



Abnormal navigation arrow operation.



Repeated popups to use the HOV lane while using navigation.



Abnormal traffic displayed when panning the map.



Closed road notification missing.



Zoom buttons intermittently inoperative.



Arrival time does not match actual arrival time.



Abnormal French voice recognition operation.

The following conditions and performance improvements for Lexus Multimedia are addressed
with this head unit software update for versions earlier than 1040:


Display screen black (this does not affect backup camera).



Display screen flickers (this does not affect backup camera).



Display screen freezes (this does not affect backup camera).



Display screen is white after selecting USB music from the phone screen.



Head unit reboots.



PIN prompt will not appear.



User profile inoperative.



“Use for CarPlay®” toggle freezes.



Apple CarPlay® connectivity performance.



Apple CarPlay® projection screen does not appear after selecting “continue” on
the phone.

© 2024 Lexus, a division of Toyota Motor Sales, USA

L-SB-0006-23

Rev1

February 13, 2023

Page 6 of 21

Head Unit Software Update (Panasonic)
Software Update Information (continued)



Apple Music® Home/For You screen 4th tile is non-responsive.



Unable to switch to audio screen after ending an Apple CarPlay® phone call.



Volume does not adjust during Siri® functions.



Android Auto® connectivity performance.



Contact photo does not show.



Contact sync error with 5000+ contact address book.



Last message not read.



No confirmation after selecting “yes” to send a text message.



Phone number not displayed after text message is sent.



Profile image not displayed.



Automatic device connection fails.