NHTSA ID Number: 11005178
Manufacturer Communication Number: L-SB-0027-24
TSB/Document Date: 2024-07-23
Summary
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 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. A head unit software update is now available for 2022 – 2023 model year LX 600 vehicles; 2023 – 2024 model year RX 350, RX 350h, RX 450h+, and RX 500h vehicles; 2022 – 2024 model year NX 250, NX 350, NX 350h, and NX 450h+ vehicles; 2023 model RZ 450e 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. A head unit software update is now available for 2022 – 2024 model year LX 600, NX 250, NX 350, NX 350h, and NX 450h+ vehicles; 2023 – 2024 model year RX 350, RX 350h, RX 450h+, RX 500h, and RZ 450e vehicles; 2024 model year TX 350, TX 500h, and TX 550h+ vehicles equipped with Lexus Multimedia (earlier than version 2170). This software update includes the following improvements: •User Profile. •User interface. •Cloud navigation. •Intelligent assistant voice recognition. •Bug fixes.
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TSB/Document ID: L-SB-0027-24
Replacement Service Bulletin Number:
MFR Communication Date: 2024-05-28
MFR Internal Campaign ID/Software Version: L-SB-0027-24
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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L-SB-0027-24
May 28, 2024
Head Unit Software Update Version 2170 (Panasonic)
Service
Category
Audio/Visual/Telematics
Section
Navigation/Multi Info Display
Market USA
Applicability
YEAR(S)
MODEL(S)
2022 - 2024
LX600, NX250, NX350,
NX350H, NX450H+
2023 - 2024
RX350, RX350H, RX450H+,
RX500H, RZ450E
2024
TX350, TX500H, TX550H+
ADDITIONAL INFORMATION
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.
© 2024 Lexus, a division of Toyota Motor Sales, USA
Page 1 of 23
L-SB-0027-24
May 28, 2024
Page 2 of 23
Head Unit Software Update Version 2170 (Panasonic)
Introduction (continued)
A head unit software update is now available for 2022 LX 600, NX 250, NX 350, NX 350h, and
NX 450h+ 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:
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.
A head unit software update is now available for 2022 – 2023 model year LX 600 vehicles;
2023 – 2024 model year RX 350, RX 350h, RX 450h+, and RX 500h vehicles; 2022 – 2024
model year NX 250, NX 350, NX 350h, and NX 450h+ vehicles; 2023 model RZ 450e 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.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0027-24
May 28, 2024
Page 3 of 23
Head Unit Software Update Version 2170 (Panasonic)
Introduction (continued)
A head unit software update is now available for 2022 – 2024 model year LX 600, NX 250,
NX 350, NX 350h, and NX 450h+ vehicles; 2023 – 2024 model year RX 350, RX 350h,
RX 450h+, RX 500h, and RZ 450e vehicles; 2024 model year TX 350, TX 500h, and TX 550h+
vehicles equipped with Lexus Multimedia (earlier than version 2170). This software update
includes the following improvements:
User Profile.
User interface.
Cloud navigation.
Intelligent assistant voice recognition.
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 Profile, Cloud Navigation, User Interface,
Intelligent Assistant Voice Recognition, 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.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0027-24
May 28, 2024
Page 4 of 23
Head Unit Software Update Version 2170 (Panasonic)
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
N/A
Not Applicable to Warranty
–
–
–
–
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:
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.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0027-24
May 28, 2024
Page 5 of 23
Head Unit Software Update Version 2170 (Panasonic)
Software Update Information (continued)
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.
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.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0027-24
May 28, 2024
Page 6 of 23
Head Unit Software Update Version 2170 (Panasonic)
Software Update Information (continued)
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.
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 AutoTM 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.
Bluetooth® connectivity performance.
Display screen shows phone call ongoing after it has ended on the phone.
Two Bluetooth® phone calls active at once.
Combination meter does not show compass when Android AutoTM navigation is ON.
Combination meter does not show compass when Apple CarPlay® navigation is ON.
Date is incorrect when there is no GPS signal available.
Incorrect navigation guidance is displayed.
Map orientation resets.
Map 2D/3D view resets.
Map zoom level resets.
Navigation announces crossing state borders incorrectly while driving.
Navigation recalculation is stuck.
Navigation route guidance is inoperative AFTER remote engine start.
Traffic flow not updating while zoomed out.
Unable to launch navigation by tapping on icon.
Voice recognition command improvements.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0027-24
May 28, 2024
Page 7 of 23
Head Unit Software Update Version 2170 (Panasonic)
Software Update Information (continued)
Voice recognition inoperative during Sirius XM® playback.
Voice recognition reply improvements.
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