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.
Saved radio stations will not display station names.
Sirius XM® channel presets in non-Sirius XM® regions.
Sirius XM® radio is inoperative.
Wi-Fi/DCM message appears in English instead of French when French is selected.
The following conditions and performance improvements for Lexus Multimedia are addressed
with this head unit software update for versions 1040 or earlier:
User Profile.
OTA notifications.
Ability to search during a call.
Bug fixes settings/configuration.
Security enhancements.
The following conditions and performance improvements for Lexus Multimedia are addressed
with this head unit software update for versions earlier than 2050:
Apple CarPlay® freezes or reboots (this does not affect the backup camera).
Navigation guidance in combination meter is missing during Apple CarPlay®.
Combination meter keeps Apple CarPlay® navigation arrow after disconnection.
Combination meter shows Apple CarPlay® call in progress AFTER it has ended.
Apple CarPlay® audio source does not resume after ACC cycle.
Audio plays from device instead of vehicle during Apple CarPlay®.
Apple CarPlay® audio plays instead of another last source.
Unstable Apple CarPlay® call.
Apple Music® Live Streaming Radio station descriptions are incorrect.
Explicit song playback is possible even if it is set to OFF in Apple Music®.
Apple CarPlay® system enhancements and updates.
Muted Android AutoTM call does not unmute.
User Profile does not load using Android Bluetooth®.
Android AutoTM disconnects after ending SOS call.
Android AutoTM system enhancements and updates.
Head unit reboots (this does not affect the backup camera).
Load last saved User Profile.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0027-24
May 28, 2024
Page 8 of 23
Head Unit Software Update Version 2170 (Panasonic)
Software Update Information (continued)
Passenger microphone inoperative.
Assistant/microphone activates unintentionally.
Assistant hint is displayed in Spanish or French instead of English (when English is the
system-selected language).
French voice command “What's my cruising range” displays in English.
Virtual Assistant system enhancements and updates.
Mode button does not mute Amazon MusicTM.
Amazon MusicTM does not resume after a Microsoft Teams call.
Navigation distance units do not reflect the selected units.
Navigation system enhancements and updates.
Steering wheel Push-to-Talk (PTT) button short press inoperative.
Slow head unit response from steering pad switches.
Bluetooth® connectivity performance.
The Parking Support Brake (PKSB) icon remains on screen (this does not affect the
backup camera).
“Default Source” description is not translated to French and Spanish.
“Audio Off” banner appears when adjusting the ringtone setting while the audio is OFF.
HVAC menu does not go to the CLIMATE screen from the COMFORT screen.
Sirius XM® Banner information is in English instead of Spanish (when Spanish is the
system-selected language).
Sirius XM® satellite radio system enhancements and updates.
Destination assist system enhancements and updates.
HMI updates and enhancements.
The following conditions and performance improvements for Lexus Multimedia are addressed
with this head unit software update for versions earlier than 2170:
Add Exit Apple CarPlay® HMI enhancement (a dynamic resize button that or hides the
Lexus menu).
Unable to connect to wired Apple CarPlay®.
Unable to connect to wireless Apple CarPlay®.
Combination meter compass and HUD compass freeze during Apple CarPlay®,
Google MapsTM, or WazeTM.
Combination meter does not show Apple CarPlay® navigation arrow guides.
Apple CarPlay® screen closes when closing the weather screen.
Apple iPhone® to combination meter communication.
Apple CarPlay® system enhancements and updates.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0027-24
May 28, 2024
Page 9 of 23
Head Unit Software Update Version 2170 (Panasonic)
Software Update Information (continued)
Apple Music® error screen.
Apple Music® create station function inoperative.
Text is cut off from Apple Music® screen.
The previous screen is not retained when navigating through Apple Music®.
Apple Music® artwork missing.
Apple Music® user interface refresh (“Listen Now” instead of “For You”).
Apple Music® system enhancements and updates.
Unable to end and accept phone call during Android AutoTM or Apple CarPlay®
phone calls.
Android AutoTM disconnects.
Android AutoTM call does not unmute.
Message prompting to disconnect Android AutoTM is displayed during Wi-Fi set up even if
Android AutoTM is already disconnected.
Lexus App download link improvements.
User Profile registration with numerical code instead of QR code.
Black screen during destination assist call (does not affect backup camera display).
Display screen blank (does not affect backup camera display).
Display screen rebooting (does not affect backup camera display).
Display screen blank after disconnecting Android AutoTM while making a Destination
Assist call (does not affect backup camera display).
Display screen flickers after responding to text message.
Bluetooth® disconnects.
Bluetooth® does not auto-connect.
Bluetooth® system enhancements and updates.
Incoming caller name stays on MID after the call ends.
No contacts are shown in the phonebook.
Phonebook profile photos appear grainy.
Phone call details are not displayed on the screen.
Ringtone sound is delayed or missing.
Slow screen transition during handsfree call volume adjustment (does not affect backup
camera display).
Handsfree call system enhancements and updates.
Compass always points north.
Navigation system enhancements and updates.
"Show my favorite contacts" voice command is inoperative.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0027-24
May 28, 2024
Page 10 of 23
Head Unit Software Update Version 2170 (Panasonic)
Software Update Information (continued)
Virtual assistant HVAC related commands prompt "feature not available" message.
Virtual assistant SMS message displays contact name incorrectly.
Voice command system enhancements and updates.
Removal of the "How can I help you" voice prompt.
Virtual Assistant system enhancements and updates.
Music streaming system enhancements and updates.
Call banner stays on screen after SOS call has ended (does not affect backup
camera display)
Meter style setting descriptions not displayed.
Song information is not displayed on the combination meter.
HMI system enhancements and updates.
Vehicle alert screen is covered by a vehicle image.
Enhanced native navigation graphics and text.
Gracenote database updates.
Radio station categories are not translated to French or Spanish.
Song love/like icon does not remain highlighted.
Metadata for non-HD radio stations.
OTA software update system enhancements and updates.
Unable to perform OTA software update.
Steering wheel switch advanced setting missing on models without winter gloves mode.
Steering wheel switch customization improvements.
Steering wheel switch volume adjustment not reflected on combination meter.
Blank Sirius XM® satellite radio banner.
Sirius XM® satellite radio TUNE banner stays on screen.
Sirius XM® Satellite radio system enhancements and updates.
Driver Support message improvements.
Remote Park button not displayed on side of backup camera screen.
HVAC blower motor minus button greyed out when blower is off (does not affect
windshield defrost function).
Rear HVAC control system enhancements and updates (does not affect windshield
defrost function).
Illumination settings menu enhancements and updates.
The next charging schedule screen does not appear.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0027-24
May 28, 2024
Page 11 of 23
Head Unit Software Update Version 2170 (Panasonic)
Software Update Information (continued)
Energy flow screen update.
HDMI system enhancements and updates.
Rear seat entertainment screen stays black.
The Head Unit (HU), Virtual Database (VD), and CAN (CA) update files may be accessed in the
table below.
MODEL SERIES
MODEL YEAR
HEAD UNIT
2022
LX
2022 – 2024
Premium
2022
2022 – 2024
NX
Entry
2022
2022 – 2024
Premium
Entry
RX
2023 – 2024
Premium
RZ
2023 – 2024
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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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