NHTSA ID Number: 10251079
Manufacturer Communication Number: L-SB-0006-23
TSB/Document Date: 2024-03-04
Summary
TSB: 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. 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 se
Rev1
February 13, 2023
Page 10 of 21
Head Unit Software Update (Panasonic)
Software Update Information (continued)
MULTIMEDIA SOFTWARE FILE DOWNLOAD
The multimedia software update file may be downloaded directly from this Service Bulletin by
clicking on the file name in the table above. Once downloaded, do NOT extract the files (unzip),
the files need to be saved directly to a blank USB flash drive.
Confirm there is no “(1)” or similar suffix on the file due to multiple downloads.
Do NOT rename the file unless it is to remove “(1)” or similar.
Multiple files can NOT be on the same USB flash drive; if there are two files on the USB flash
drive beginning with “rb_update” the software installation will NOT begin.
Use a blank USB flash drive from a trusted name-brand manufacturer with the
following specifications:
Storage capacity: 4.0 – 32 GB.
USB flash drives larger than 32 GB that can be partitioned to smaller sizes will NOT work.
If a 32 GB USB flash drive is not working, try a smaller capacity USB flash drive.
Communication format: USB 2.0 or newer.
File format: FAT 32 (Windows®).
USB-C vehicles will require a USB-C flash drive or adapter that is capable of transferring data
(not just charging).
NOTE
The USB method should ONLY be used when the Wi-Fi/Cellular method of updating is unsuccessful.
NOTICE
To prevent damaging the head unit, DO NOT put multiple files on the same USB flash drive at
the same time.
It is recommended to use one separate USB flash drive per file: For example, one for HU file,
one for VD file (one for CA if applicable).
Software Update Procedures
Wi-Fi Connection Procedure..................................................................................................... 11
OTA Update Procedure (Wi-Fi and Cellular) ............................................................................. 12
USB Update Procedure ............................................................................................................ 17
HINT
Future OTA updates may use the Wi-Fi delivery method to update the data.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0006-23
Rev1
February 13, 2023
Head Unit Software Update (Panasonic)
Software Update Procedures (continued)
Wi-Fi Connection Procedure
1. Turn ON the ignition.
2. Select the gear icon in the lower left corner
of the radio screen.
Figure 3.
3. Select Data & Wi-Fi.
Figure 4.
4. Select Wi-Fi and turn the Wi-Fi toggle to ON.
Figure 5.
HINT
This step is used to connect the vehicle to
an EXTERNAL Wi-Fi source.
Wi-Fi connection is NOT required for
updates that are delivered through
DCM data.
© 2024 Lexus, a division of Toyota Motor Sales, USA
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L-SB-0006-23
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February 13, 2023
Head Unit Software Update (Panasonic)
Software Update Procedures (continued)
Wi-Fi Connection Procedure (continued)
5. Select the Wi-Fi network desired to connect.
Figure 6.
NOTE
It is NOT possible to connect to a Wi-Fi
source that requires a username and
password to be entered in a browser.
6. Follow the on-screen instructions.
A message will appear confirming that the
vehicle is successfully connected to
the network.
Figure 7.
OTA Update Procedure (Wi-Fi and Cellular)
1. Select the gear icon, scroll down, and select
Software update.
Figure 8.
© 2024 Lexus, a division of Toyota Motor Sales, USA
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L-SB-0006-23
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February 13, 2023
Head Unit Software Update (Panasonic)
Software Update Procedures (continued)
OTA Update Procedure (Wi-Fi and Cellular) (continued)
2. Are software updates available?
YES — Continue to step 3 to update
the vehicle.
NO — This bulletin does NOT apply,
continue diagnosis using the
applicable Repair Manual.
Figure 9.
Figure 10.
3. Select Model info.
Figure 11.
© 2024 Lexus, a division of Toyota Motor Sales, USA
Page 13 of 21
L-SB-0006-23
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February 13, 2023
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Head Unit Software Update (Panasonic)
Software Update Procedures (continued)
OTA Update Procedure (Wi-Fi and Cellular) (continued)
Figure 12.
4. Is the software up to date?
(Refer to Table 1 below.)
YES — This bulletin does NOT apply.
Continue diagnosis using the
applicable Repair Manual.
NO — Continue to step 5.
Table 1. Software Version Information
TYPE
PREVIOUS VERSION
CURRENT VERSION
Earlier than 2050
2050
HU Version
VD Version
5. Select Update Software.
Figure 13.
6. Select Accept on the Terms of
service screen.
Figure 14.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0006-23
Rev1
February 13, 2023
Head Unit Software Update (Panasonic)
Software Update Procedures (continued)
OTA Update Procedure (Wi-Fi and Cellular) (continued)
7. Wait for the update to download.
Figure 15.
8. Select Accept on the Notice pop-up
message if it appears.
Figure 16.
9. Wait for the update to download. Once the
head unit begins installation, the update will
take 10 minutes or less.
Figure 17.
NOTE
Do NOT turn OFF the engine or ACC
BEFORE the software is ready
for updating.
Selecting Cancel will cancel the installation
of the specific component, but it can be
installed manually later.
© 2024 Lexus, a division of Toyota Motor Sales, USA
Page 15 of 21
L-SB-0006-23
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February 13, 2023
Head Unit Software Update (Panasonic)
Software Update Procedures (continued)
OTA Update Procedure (Wi-Fi and Cellular) (continued)
10. If a major update is being installed the
message “Software update in progress” will
be displayed.
Figure 18.
NOTE
Do NOT turn OFF the engine or ACC
BEFORE the software has
updated successfully.
Selecting Cancel will cancel the installation
of the specific component, but it can be
installed manually later.
11. The software installation is complete when
either a “Software installation complete”
banner (Figure 19) or the “Software update
complete” screen (Figure 20) is displayed.
Figure 19.
NOTE
If the vehicle has installed a major update,
and the “Software update complete” screen is
displayed, then an IG-OFF/ON will need to be
performed prior to attempting to operate any
of the infotainment functions.
Figure 20.
© 2024 Lexus, a division of Toyota Motor Sales, USA
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L-SB-0006-23
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Page 17 of 21
Head Unit Software Update (Panasonic)
Software Update Procedures (continued)
OTA Update Procedure (Wi-Fi and Cellular) (continued)
12. If a restart is necessary, select Yes to restart
the head unit.
Figure 21.
NOTE
If No is selected or the vehicle is switched to
IG-OFF, the installation will occur at the
next IG-ON.
13. If after IG-OFF/ON a “Software could not be
updated” banner appears, continue to the
USB Update Procedure subsection.
Figure 22.
USB Update Procedure
1. Download the software from the Software Update Information section onto an empty USB
flash drive.
NOTE
The USB method should ONLY be used when the Wi-Fi/DCM method of updating is unsuccessful.
Even for USB update, confirm one of the following signals is present for the head unit:
Data Communications Module (DCM) (this function is NOT available in some countries
or areas.)
Wi-Fi.
NOTICE
Possibility of damage to the components being repaired. This is a new procedure different
from previous multimedia software update bulletins. Please pay close attention to the notices
on page 10 and page 19.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0006-23
Rev1
February 13, 2023
Page 18 of 21
Head Unit Software Update (Panasonic)
Software Update Procedures (continued)
USB Update Procedure (continued)
2. Select the gear icon and scroll down to select
Software update.
Figure 23.
3. Insert the prepared USB flash drive into the
vehicle’s data USB port.
Figure 24.
NOTE
After inserting the USB flash drive, two
banners may appear:
1. A blue “USB device
connected” banner.
2.
An orange “Device no response” banner
appears if there are no media files on the
USB flash drive. This
is normal.
If the blue “USB device connected” banner
does not appear, the USB flash drive may be
formatted incorrectly or is inoperative.
For 2022 model year LX and NX vehicles; and 2023 model year ES and UX vehicles that have
a CA version earlier than 1040, insert the USB flash drive with the CA file first. After CA is
updated to 1040, repeat the USB update procedure to update the HU to 2050, then the VD
to 2050.
For all other 2023 – 2024 model year vehicles listed in this bulletin that have CA version 1040
or later, insert the flash drive with the HU file first. After the HU is updated to 2050, repeat the
USB update procedure to update the VD to 2050.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0006-23
Rev1
February 13, 2023
Head Unit Software Update (Panasonic)
Software Update Procedures (continued)
USB Update Procedure (continued)
4. Select Update Software.
Figure 25.
NOTE
The “Update Software” button may not be
available immediately after inserting the USB
flash drive. The head unit is unzipping the
software update file, and it may take up to
15 minutes for this button to become available
to press.
5. Select Accept on the Terms of
service screen.
Figure 26.
6. Wait for the update to download. Once the
head unit software begins installation, the
update will take about 15 minutes per
update file.
Figure 27.
NOTICE
To prevent damaging the head unit, follow
the five requirements below during this
software update install step.
Do NOT turn IG OFF.
Do NOT turn ACC OFF.
Do NOT press CANCEL.
Do NOT turn the head unit OFF.
Do NOT remove the USB flash drive
until instructed in step 9.
© 2024 Lexus, a division of Toyota Motor Sales, USA
Page 19 of 21
L-SB-0006-23
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February 13, 2023
Head Unit Software Update (Panasonic)
Software Update Procedures (continued)
USB Update Procedure (continued)
A. When the update is complete, “Install
Complete” will show on the head unit, as
shown in Figure 28.
Figure 28.
B. The “Software installation complete” popup message may also appear, as shown
in Figure 29.
NOTE
If you are prompted to upload a report as
shown in Figure 30, insert a blank USB to
remove the .JSON files. These files are
NOT needed.
Figure 29.
Figure 30.
7. Perform an ignition cycle.
8. Wait two minutes.
9. After the system has successfully booted up, remove the USB flash drive.
© 2024 Lexus, a division of Toyota Motor Sales, USA
Page 20 of 21
L-SB-0006-23
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February 13, 2023
Page 21 of 21
Head Unit Software Update (Panasonic)
Software Update Procedures (continued)
USB Update Procedure (continued)
10. Perform steps 1 – 4 of OTA Update Procedure (Wi-Fi and Cellular) to verify the software version
matches the table below.
Table 2. Software Version Information
TYPE
CURRENT VERSION
HU Version
2050
VD Version
CA Version
1040 or later
11. Perform steps 1 – 10 again for the remaining files as noted in step 3 of the USB
Update Procedure.
© 2024 Lexus, a division of Toyota Motor Sales, USA
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TSB/Document ID: L-SB-0006-23
Replacement Service Bulletin Number:
MFR Communication Date: 2024-01-26
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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