NHTSA ID Number: 10211805
Manufacturer Communication Number: L-SB-0036-21 Rev
TSB/Document Date: 2022-05-16
Summary
TSB: Some 2020 model year ES 350, ES 300h, UX 200, and UX 250h vehicles may exhibit one or more of the following conditions: ?Diagnostic Trouble Code (DTC) B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Lexus
app does not accept the activation code. ?Lexus app is inoperative. ?SOS call center does not receive the vehicle?s location in a timely manner. ?Lexus app shows an error 42 when trying to execute a command. ?Unable to remote start the vehicle with the key fob (if equipped). ?Unable to subscribe to remote services. ?Unable to activate Wi-Fi. ?Destination Assist is inoperative Some 2020 ? 2021 model year ES 350, ES 300h, UX 200, and UX 250h vehicles may exhibit one or more of the following conditions: ?DTC B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Lexus App is inoperative. ?Unable to subscribe to remote services. ?Unable to activate Wi-Fi. ?Depleted 12V vehicle battery when in IG-OFF. Some 2020 ? 2021 model year ES 350, ES 300h, UX 200, and UX 250h and 2021 model year ES 250 vehicles may exhibit one or more of the following conditions: ?Depleted 12V vehicle battery when in IG-OFF. Some 2020 ? 2021 model year ES 350, ES 300h, UX 200, and UX 250h and 2021 model year ES 250 vehicles may exhibit one or more of the following conditions: ?Remote Engine Start inoperative (fob and app). ?Remote Engine Start inoperative (app only). ?B15CC49 backup battery malfunction. ?Power Door Lock inoperative (app and fob). Some 2020 ? 2022 model year ES 350, ES 300h, UX 200, and UX 250h, 2021 ? 2022 model year ES 250 vehicles may exhibit one or more of the following conditions: ?Connected Services inoperative. ?Safety Connect calls not completing intermittently. ?DCM signal strength grayed OUT on head unit with strike through. DCM reset and firmware update is now available to address these conditions.
L-SB-0036-21
Rev1
October 14, 2021
DCM Reset and Firmware Update (LG)
Service
Category
Audio/Visual/Telematics
Section
Cellular Communication
Market USA
Applicability
YEAR(S)
MODEL(S)
2021 - 2022
ES250
2020 - 2022
ES300H, ES350, UX200,
UX250H
ADDITIONAL INFORMATION
REVISION NOTICE
April 11, 2022 Rev1:
The Applicability, Introduction, and DCM Reset and Firmware Update Procedure sections have
been updated.
Any previous printed versions of this bulletin should be discarded.
SUPERSESSION NOTICE
The information contained in this bulletin supersedes Service Bulletin No. L-SB-0036-20.
The Introduction and DCM Reset and Firmware Update Procedure sections have been modified.
Service Bulletin No. L-SB-0036-20 is obsolete and any printed versions should be discarded.
© 2022 Lexus, a division of Toyota Motor Sales, USA
Page 1 of 11
L-SB-0036-21
Rev1
October 14, 2021
Page 2 of 11
DCM Reset and Firmware Update (LG)
Introduction
Some 2020 model year ES 350, ES 300h, UX 200, and UX 250h vehicles may exhibit one or more
of the following conditions:
Diagnostic Trouble Code (DTC) B15A804 is present in current or history.
Red SOS LED stays on after bulb check.
Lexus app does not accept the activation code.
Lexus app is inoperative.
SOS call center does not receive the vehicle’s location in a timely manner.
Lexus app shows an error 42 when trying to execute a command.
Unable to remote start the vehicle with the key fob (if equipped).
Unable to subscribe to remote services.
Unable to activate Wi-Fi.
Destination Assist is inoperative.
Some 2020 – 2021 model year ES 350, ES 300h, UX 200, and UX 250h vehicles may exhibit
one or more of the following conditions:
DTC B15A804 is present in current or history.
Red SOS LED stays on after bulb check.
Lexus App is inoperative.
Unable to subscribe to remote services.
Unable to activate Wi-Fi.
Depleted 12V vehicle battery when in IG-OFF.
Some 2020 – 2021 model year ES 350, ES 300h, UX 200, and UX 250h and 2021 model year
ES 250 vehicles may exhibit one or more of the following conditions:
Depleted 12V vehicle battery when in IG-OFF.
© 2022 Lexus, a division of Toyota Motor Sales, USA
L-SB-0036-21
Rev1
October 14, 2021
Page 3 of 11
DCM Reset and Firmware Update (LG)
Introduction (continued)
Some 2020 – 2021 model year ES 350, ES 300h, UX 200, and UX 250h and 2021 model year
ES 250 vehicles may exhibit one or more of the following conditions:
Remote Engine Start inoperative (fob and app).
Remote Engine Start inoperative (app only).
B15CC49 backup battery malfunction.
Power Door Lock inoperative (app and fob).
Some 2020 – 2022 model year ES 350, ES 300h, UX 200, and UX 250h, 2021 – 2022 model
year ES 250 vehicles may exhibit one or more of the following conditions:
Connected Services inoperative.
Safety Connect calls not completing intermittently.
DCM signal strength grayed OUT on head unit with strike through.
A DCM reset and firmware update is now available to address these conditions. Follow the DCM
Reset and Firmware Update Procedure in this bulletin to update the firmware.
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
EL1935
DCM Reset and Firmware Update
0.8
86741-#####*
86740-#####*
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.
© 2022 Lexus, a division of Toyota Motor Sales, USA
L-SB-0036-21
Rev1
October 14, 2021
Page 4 of 11
DCM Reset and 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.
Software version 17.00.020 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.
© 2022 Lexus, a division of Toyota Motor Sales, USA
L-SB-0036-21
Rev1
October 14, 2021
Page 5 of 11
DCM Reset and Firmware Update (LG)
DCM Reset and 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.
© 2022 Lexus, a division of Toyota Motor Sales, USA
L-SB-0036-21
Rev1
October 14, 2021
Page 6 of 11
DCM Reset and Firmware Update (LG)
DCM Reset and Firmware Update Procedure (continued)
3. 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
LG-N010gg7
LG-N010hh9
LG-N010ii4
LG-N010jj9
LG-N010kkA
SOFTWARE VERSION LOW
575-57
575-55
I9I-13
I9I-b9
I9I-24
CBC-34
CBC-98
G7G-05
G7G-c7
797-43
797-89
646-44
646-88
292-54
292-78
RAR-55
RAR-77
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. Disconnect the battery to reset the DCM.
5. Reconnect the battery AFTER it has been disconnected for AT LEAST 30 minutes.
6. Cycle the ignition to the IG-ON position IMMEDIATELY.
7. Verify the SOS LED indicator status.
Has the SOS LED indicator been on solid green for more than five seconds?
YES — Continue to step 8.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
© 2022 Lexus, a division of Toyota Motor Sales, USA
L-SB-0036-21
Rev1
October 14, 2021
DCM Reset and Firmware Update (LG)
DCM Reset and Firmware Update Procedure (continued)
8. Perform the DCM firmware update utility.
Refer to TIS – Body Electrical –
Telematics – Utility.
Figure 2.
9. Click on Next when the DCM firmware
update screen appears.
Figure 3.
© 2022 Lexus, a division of Toyota Motor Sales, USA
Page 7 of 11
L-SB-0036-21
Rev1
October 14, 2021
DCM Reset and Firmware Update (LG)
DCM Reset and Firmware Update Procedure (continued)
10. Select “Start the firmware update” and click
on Next when the item selection
screen appears.
Figure 4.
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 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 13.5V 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.
© 2022 Lexus, a division of Toyota Motor Sales, USA
Page 8 of 11
L-SB-0036-21
Rev1
October 14, 2021
DCM Reset and Firmware Update (LG)
DCM Reset and Firmware Update Procedure (continued)
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.
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.
© 2022 Lexus, a division of Toyota Motor Sales, USA
Page 9 of 11
L-SB-0036-21
Rev1
October 14, 2021
Page 10 of 11
DCM Reset and Firmware Update (LG)
DCM Reset and Firmware Update Procedure (continued)
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-N010kkA
SOFTWARE VERSION LOW
RAR-55
RAR-77
15. Using Techstream, perform a Health Check and clear ALL DTCs that may have occurred during
the update process.
16. In the customer’s Lexus app, perform steps
17 – 19 for customers with the “Unable to
Activate Remote” message.
Figure 8.
17. Click on the arrow by the vehicle
name/nickname.
Figure 9.
© 2022 Lexus, a division of Toyota Motor Sales, USA
L-SB-0036-21
Rev1
October 14, 2021
DCM Reset and Firmware Update (LG)
DCM Reset and Firmware Update Procedure (continued)
18. Click on Remove.
Figure 10.
19. Click on Add Vehicle to perform
the enrollment again.
Figure 11.
© 2022 Lexus, a division of Toyota Motor Sales, USA
Page 11 of 11
- Advanced VCI Box, Industry-leading J2534 Pass-Thru...
- High-Speed OEM-Level Diagnostics & Programming: Unlock true...
- Coverage for 17 Car Brands & Ultra Reliability: Works...
- User-Friendly RLink Platform & Expert Support: TOPDON’s...
- 6.6 ft USB-C Cable & Portable Storage Case: The RLink J...
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: L-SB-0036-21 Rev
Replacement Service Bulletin Number:
MFR Communication Date: 2022-04-11
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
- Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
- Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
- 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
- Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission, ABS, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.
- Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCA
Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU c0ding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations - 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCA AutoAuth: Now supports FCA SGW module for Chrysler, for Jeep, for Dodge (2018+), for Fiat (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Pr0gramming): Allows for Ford, for Lincoln, and for Mazda ECU pr0gramming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
- 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABS Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABS Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
- Cost-effective ECU C0ding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMW, for Benz and offline for BENZ, for MIT, along with PMI functions for Ford, for Mazda, and for Lincoln. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
- OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
- 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABS/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABS/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
- 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
- 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
- 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.
- 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.
This product presentation was made with AAWP plugin.