NHTSA ID Number: 10173795
Manufacturer Communication Number: L-SB-0004-20
TSB/Document Date: 2020-04-13
Summary
TSB: Some 2020 model year ES350, ES300h, UX200, and UX250h vehicles may exhibit a condition in which the Remote Connect app does not accept the activation code and/or becomes inoperative, and/or the SOS call center does not receive the vehicle?s location data in a timely manner. Follow the Firmware Update Procedure in this bulletin to address these conditions.
L-SB-0004-20
March 9, 2020
DCM Firmware Update (LG)
Service
Category
Audio/Visual/Telematics
Section
Cellular Communication
Market USA
Applicability
YEAR(S)
MODEL(S)
2020
ES300H, ES350, UX200,
UX250H
ADDITIONAL INFORMATION
Introduction
Some 2020 model year ES350, ES300h, UX200, and UX250h vehicles may exhibit a condition in
which the Remote Connect app does not accept the activation code and/or becomes inoperative,
and/or the SOS call center does not receive the vehicle’s location data in a timely manner.
Follow the Firmware Update Procedure in this bulletin to address these conditions.
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
EL1926
Firmware Update
0.8
86741-#####
87
74
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.
© 2020 Lexus, a division of Toyota Motor Sales, USA
Page 1 of 8
L-SB-0004-20
March 9, 2020
Page 2 of 8
DCM Firmware Update (LG)
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
PART NUMBER
Techstream ADVi*
TSADVUNIT
Techstream 2.0
Techstream Lite
QTY
TS2UNIT
ADE
1
TSLITEPDLR01
Techstream Lite (Green Cable)
TSLP2DLR01
*Essential SST.
NOTE
Only ONE of the Techstream units listed above is required.
Software version 14.30.022 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*
DCA8000P_T
1
*Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-933-8335.
© 2020 Lexus, a division of Toyota Motor Sales, USA
L-SB-0004-20
March 9, 2020
Page 3 of 8
DCM Firmware Update (LG)
Firmware Update Procedure
1. Disconnect the battery.
2. Reconnect the battery AFTER it has been disconnected for AT LEAST 30 minutes.
3. Cycle the ignition to the IG ON position.
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
13.5V 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.
4. 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.
© 2020 Lexus, a division of Toyota Motor Sales, USA
L-SB-0004-20
March 9, 2020
Page 4 of 8
DCM Firmware Update (LG)
Firmware Update Procedure (continued)
5. Verify the current firmware version.
Refer to TIS – Body Electrical – Telematics – Data List:
Table 1: Current Firmware Version.
PREVIOUS
CURRENT
SOFTWARE VERSION HIGH
LG-N010dd7
LG-N010ee9
LG-N010ffB
SOFTWARE VERSION LOW
575-57
575-55
I9I-13
I9I-b9
I9I-24
CBC-98
CBC-34
Is the firmware version up to date?
YES — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
NO — Continue to step 6.
6. Move the vehicle to an area with good DCM (Data Communication Module) signal reception.
7. Verify the SOS LED indicator status.
Has the SOS LED indicator been on solid green for more than 5 seconds?
YES — Continue to step 8.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
8. Perform the DCM firmware update utility.
Refer to TIS – Body Electrical –
Telematics – Utility.
Figure 2.
© 2020 Lexus, a division of Toyota Motor Sales, USA
L-SB-0004-20
March 9, 2020
DCM Firmware Update (LG)
Firmware Update Procedure (continued)
9. Click on Next when the DCM firmware
update screen appears.
Figure 3.
10. Select “Start the firmware update” and click
on Next when the item selection
screen appears.
Figure 4.
© 2020 Lexus, a division of Toyota Motor Sales, USA
Page 5 of 8
L-SB-0004-20
March 9, 2020
DCM Firmware Update (LG)
Firmware Update Procedure (continued)
11. Click on Next when the current software 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 1. The
battery reset MUST be performed again.
12. The firmware update will begin. DO NOT
turn the vehicle OFF during this time.
Figure 6.
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.
© 2020 Lexus, a division of Toyota Motor Sales, USA
Page 6 of 8
L-SB-0004-20
March 9, 2020
Page 7 of 8
DCM Firmware Update (LG)
Firmware Update Procedure (continued)
13. The green LED will be ON when the
update process has completed. AFTER the
process has completed, wait for the radio
screen to display the service mode screen
BEFORE you click OK to exit.
Figure 7.
14. Verify the current firmware version.
Refer to TIS – Body Electrical – Telematics – Data List:
Table 2: Current Firmware Version
CURRENT FIRMWARE VERSION
SOFTWARE VERSION HIGH
LG-N010ffB
SOFTWARE VERSION LOW
CBC-98
CBC-34
15. Using Techstream, perform a Health Check and clear ALL DTCs that may have occurred
during the update process.
16. In the customer’s Remote Connect app,
perform steps 17 – 19 for customers with
the “Unable to Activate Remote” message.
Figure 8.
© 2020 Lexus, a division of Toyota Motor Sales, USA
L-SB-0004-20
March 9, 2020
DCM Firmware Update (LG)
Firmware Update Procedure (continued)
17. Click on the arrow by the vehicle
name/nickname.
Figure 9.
18. Click on Remove.
Figure 10.
19. Click on ADD VEHICLE and perform
the enrollment again.
Figure 11.
© 2020 Lexus, a division of Toyota Motor Sales, USA
Page 8 of 8
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TSB/Document ID: L-SB-0004-20
Replacement Service Bulletin Number:
MFR Communication Date: 2020-03-09
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT ADAPTIVE/MOBILITY
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