NHTSA ID Number: 10238145
Manufacturer Communication Number: L-SB-0034-23
TSB/Document Date: 2023-06-26
Summary
TSB: Some 2023 model year ES 250, ES 300h, ES 350, and UX 250h vehicles with DCM firmware version earlier than LG-N210ee9999-09 may exhibit a condition in which the vehicle customize settings menu is unavailable in the head unit after connecting to Techstream. A DCM firmware update is now available to address this condition. Follow the DCM Firmware Update Procedure in this bulletin to update the firmware.
L-SB-0034-23
May 19, 2023
DCM Firmware Update (LG)
Service
Category
Audio/Visual/Telematics
Section
Navigation/Multi Info Display
Market USA
Applicability
YEAR(S)
MODEL(S)
2023
ES250, ES300H, ES350,
UX250H
ADDITIONAL INFORMATION
Introduction
Some 2023 model year ES 250, ES 300h, ES 350, and UX 250h vehicles with DCM firmware
version earlier than LG-N210ee9999-09 may exhibit a condition in which the vehicle customize
settings menu is unavailable in the head unit after connecting to Techstream.
A DCM firmware update is now available to address this condition. Follow the DCM Firmware
Update Procedure in this bulletin to update the firmware.
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
EL9085
DCM Firmware Update
0.3
86741-#####*
87
74
*Warranty claim MUST be submitted with the correct 10-digit OFP. Choose the correct OFP for the vehicle being repaired
by searching for the parts in the Electronic Parts Catalog using the VIN filter.
APPLICABLE WARRANTY
This repair is covered under the Lexus
Basic Warranty. This warranty is in effect for
48 months or 50,000 miles, whichever occurs first, from the vehicle’s in-service date.
Warranty application is limited to occurrence of the specified condition described in
this bulletin.
© 2023 Lexus, a division of Toyota Motor Sales, USA
Page 1 of 9
L-SB-0034-23
May 19, 2023
Page 2 of 9
DCM Firmware Update (LG)
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
PART NUMBER
Techstream ADVI*
QTY
TSADVUNIT
Techstream 2.0
TS2UNIT
ADE
1
Techstream Lite
TSLITEPDLR01
Techstream Lite (Green Cable)
TSLP2DLR01
*Essential SST.
NOTE
Only ONE of the Techstream units listed above is required.
GTS+ software version 2022.04.004.02 or later is required.
Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.
Use Techstream or an approved J2534 interface to perform flash reprogramming updates.
Visit techinfo.toyota.com for more information regarding J2534 reprogramming.
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
Battery Diagnostic Tool*
DCA-8000P T
1
*Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-933-8335.
© 2023 Lexus, a division of Toyota Motor Sales, USA
L-SB-0034-23
May 19, 2023
Page 3 of 9
DCM Firmware Update (LG)
DCM Firmware Update Procedure
1. Move the vehicle to an area with good DCM (Data Communication Module) signal reception.
NOTE
Ensure the customer has an active account BEFORE beginning this process.
If the customer has waived telematics services, an account may need to be temporarily created
to perform this update.
2. Using Techstream, perform a Health Check
and clear ALL DTCs.
Figure 1.
A. Check the “Perform Health Check on
all ECUs” box.
B. Check the “Store only DTC
and FFD” box.
C. Click on Next.
© 2023 Lexus, a division of Toyota Motor Sales, USA
L-SB-0034-23
May 19, 2023
Page 4 of 9
DCM Firmware Update (LG)
DCM Firmware Update Procedure (continued)
3. Verify the current firmware version.
Refer to TIS – Body Electrical – Telematics – Data List:
Table 1: Current Firmware Version.
FIRMWARE VERSION HIGH
PREVIOUS
CURRENT
LG-N210cc4J4J-00
LG-N210cc4J4J-09
LG-N210dd8A8A-00
LG-N210dd8A8A-09
LG-N210ee9999-00
Is the firmware version up to date?
YES — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
NO — Continue to step 4.
4. Verify the SOS LED indicator status.
Has the SOS LED indicator been on solid green for more than five seconds?
YES — Continue to step 5.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
5. Perform the DCM firmware update utility.
Refer to TIS – Body Electrical –
Telematics – Utility.
Figure 2.
© 2023 Lexus, a division of Toyota Motor Sales, USA
L-SB-0034-23
May 19, 2023
DCM Firmware Update (LG)
DCM Firmware Update Procedure (continued)
6. Click on Next when the DCM firmware
update screen appears.
Figure 3.
7. Select “Start the firmware update” and click
on Next when the item selection
screen appears.
Figure 4.
© 2023 Lexus, a division of Toyota Motor Sales, USA
Page 5 of 9
L-SB-0034-23
May 19, 2023
Page 6 of 9
DCM Firmware Update (LG)
DCM Firmware Update Procedure (continued)
8. Click on Next when the current firmware
part number screen appears.
Figure 5.
NOTE
If the screen in Figure 5 does NOT appear
and an error message displays, begin the
Firmware Update Procedure again from
step 4. The battery reset MUST be
performed again.
Use the battery diagnostic tool to maintain
battery voltage.
NOTE
The battery diagnostic tool MUST be
used in Power Supply Mode to maintain
battery voltage at 13.5 V while flash
reprogramming the vehicle.
For details on how to use the battery
diagnostic station, refer to the
DCA-8000 Instruction Manual located at
TIS – Diagnostics – Tools & Equipment –
Battery Diagnostics.
9. The firmware update will begin. Do NOT turn the vehicle OFF during this time.
NOTE
Do NOT press Exit until the update process has completed.
During the update process, the green and red LEDs will both be ON and will reset several times
resulting in the LEDs being temporarily OFF during the process. The download process will take
about 5 – 10 minutes.
© 2023 Lexus, a division of Toyota Motor Sales, USA
L-SB-0034-23
May 19, 2023
Page 7 of 9
DCM Firmware Update (LG)
DCM Firmware Update Procedure (continued)
10. The three conditions below will indicate
that the firmware update process
is complete:
The green LED will stay ON.
The update complete message will
appear on Techstream.
The service mode message will appear
on the display screen.
Figure 6.
11. Verify the current firmware version.
Refer to TIS – Body Electrical – Telematics – Data List:
Table 2: Current Firmware Version
CURRENT FIRMWARE VERSION
FIRMWARE VERSION HIGH
LG-N210ee9999-00
12. Using Techstream, perform a Health Check and clear ALL DTCs that may have occurred
during the update process.
© 2023 Lexus, a division of Toyota Motor Sales, USA
L-SB-0034-23
May 19, 2023
DCM Firmware Update (LG)
DCM Firmware Update Procedure (continued)
13. For customers with the “Unable to Activate
Remote” message, perform steps 14 – 16
in the Toyota app.
Figure 7.
14. Click on the arrow by the vehicle
name/nickname.
Figure 8.
© 2023 Lexus, a division of Toyota Motor Sales, USA
Page 8 of 9
L-SB-0034-23
May 19, 2023
DCM Firmware Update (LG)
DCM Firmware Update Procedure (continued)
15. Click on Remove.
Figure 9.
16. Click on Add Vehicle to perform
the enrollment again.
Figure 10.
© 2023 Lexus, a division of Toyota Motor Sales, USA
Page 9 of 9
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TSB/Document ID: L-SB-0034-23
Replacement Service Bulletin Number:
MFR Communication Date: 2023-05-19
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM:SOFTWARE
MFR Component System:
MFR Component Subsystem:
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