NHTSA ID Number: 11016793
Manufacturer Communication Number: L-SB-0017-25
TSB/Document Date: 2025-04-08
Summary
Some 2022 – 2024 model year NX 250 and NX 350, and 2023 – 2024 model year RX 350 vehicles may exhibit both of the following conditions at vehicle startup: •A “Shift System Malfunction” message on the Multi-information Display (MID), as shown below. •Battery voltage drops below 10V. These conditions are more likely to occur when the outside temperatures are near freezing. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of these conditions.
L-SB-0017-25
February 20, 2025
Shift System Malfunction Warning Message on MID
Service
Category
Drivetrain
Market USA and
Section
Automatic Transmission/Transaxle
Mexico
Applicability
YEAR(S)
MODEL(S)
2022 - 2024
NX250, NX350
2023 - 2024
RX350
ADDITIONAL INFORMATION
Introduction
Some 2022 – 2024 model year NX 250 and NX 350, and 2023 – 2024 model year RX 350 vehicles
may exhibit both of the following conditions at vehicle startup:
A “Shift System Malfunction” message on the Multi-information Display (MID),
as shown below.
Battery voltage drops below 10V.
These conditions are more likely to occur when the outside temperatures are near freezing. The
Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been
modified to reduce the possibility of these conditions. Follow the Repair Procedure in this bulletin
to address these conditions.
Figure 1.
© 2025 Lexus
, a division of Toyota Motor Sales, USA
Submitted to NHTSA on 03/07/2025
Page 1 of 6
L-SB-0017-25
February 20, 2025
Page 2 of 6
Shift System Malfunction Warning Message on MID
Production Change Information
This bulletin applies to:
All 2022 – 2023 model year NX 250 and NX 350 vehicles.
All 2023 model year RX 350 vehicles produced by TMMC.
All 2023 model year RX 350 vehicles produced by TMK BEFORE the Production Change
Effective VIN shown below.
All 2024 model year NX 250, NX 350, and RX 350 vehicles produced BEFORE the Production
Change Effective VINs shown below.
MODEL
YEAR
PLANT
DRIVETRAIN
PRODUCTION CHANGE EFFECTIVE VIN
2WD
JTJADCAZ#R5015693
JTJGDCAZ#R5015454
JTJHDCAZ#R5016320
A25A-FKS
JTJADCEZ#R5001121
JTJGDCEZ#R5001205
TMC Tahara
4WD
T24A-FTS
NX 250
NX 350
2024
2WD
A25A-FKS
TMK
JTJAGCEZ#R5006380
JTJGGCEZ#R5006365
JTJHGCEZ#R5006571
JTJKGCEZ#R5006778
JTJADCAZ#R2009566
JTJGDCAZ#R2009434
JTJHDCAZ#R2009975
JTJADCEZ#R2002854
JTJGDCEZ#R2002897
JTJAGCEZ#R2011255
4WD
TMMC
T24A-FTS
2023
TMK
2T2AGCEZ#RC046944
2T2GGCEZ#RC046944
2T2HGCEZ#RC046944
2T2KGCEZ#RC046944
JTJCHMAA#P2009960
2WD
RX 350
2T2BAMBA#RC024507
2024
TMMC
4WD
© 2025 Lexus, a division of Toyota Motor Sales, USA
Submitted to NHTSA on 03/07/2025
2T2BAMCA#RC043067
L-SB-0017-25
February 20, 2025
Page 3 of 6
Shift System Malfunction Warning Message on MID
Warranty Information
For USA Market
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
EL2503
0.7
89661-#####*
8A
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 Federal Emission Warranty. This warranty is in effect for
96 months or 80,000 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.
For Mexico Market
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
EL2503
0.7
89661-#####*
8A
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 80,000 kilometers, whichever occurs first, from the vehicle’s in-service date.
Warranty application is limited to occurrence of the specified condition described in
this bulletin.
© 2025 Lexus, a division of Toyota Motor Sales, USA
Submitted to NHTSA on 03/07/2025
L-SB-0017-25
February 20, 2025
Page 4 of 6
Shift System Malfunction Warning Message on MID
Parts Information
PART NAME
QTY
Computer, Engine Control (ECM/PCM)
–
PART NUMBER
89661-F6020
89661-F6021
89661-F6030
89661-F6031
89661-F6040
89661-F6050
89661-F6060
89661-F6090
89661-F6091
89661-F6100
89661-F6101
89661-F6110
89661-0EK00
89661-0EK30
89661-0ES10
NOTE
The ECM (PCM) should NOT be replaced as part of the Repair Procedure.
© 2025 Lexus, a division of Toyota Motor Sales, USA
Submitted to NHTSA on 03/07/2025
L-SB-0017-25
February 20, 2025
Page 5 of 6
Shift System Malfunction Warning Message on MID
Required Tools & Equipment
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
DCA-8000 Battery Diagnostic Tool*
DCA-8000P T
1
*Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-368-6787 (USA) or 01-800-504-5330 (Mexico) or by
visiting Home – Service Resources – Lexus Special Service Tools (SSTs).
REQUIRED EQUIPMENT
SUPPLIER
Techstream ADVi*
PART NUMBER
QTY
TSADVUNIT
Techstream 2.0
TS2UNIT
ADE
Techstream Lite
TSLITEPDLR01
Techstream Lite (Green Cable)
1
TSLP2DLR01
*Essential SST.
NOTE
Only ONE of the Techstream units listed above is required.
GTS+ software version 2024.04.004.02 or later is required.
Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787 (USA) or 01-55-50103041 (Mexico) or by visiting TIS – Diagnostics –
Tools & Equipment – Techstream Order Portal.
Use Techstream or an approved J2534 interface to perform flash reprogramming updates.
Visit techinfo.toyota.com for more information regarding J2534 reprogramming.
Calibration Information
CALIBRATION ID
MODEL
CAL ID NUMBER
PREVIOUS
NX 250
NX 350
RX 350
CID 1
A25A-FKS
T24A-FTS
CID 2
894FF7801100
894FF7801200
894FF7801300
894FG7801100
894FG7801200
© 2025 Lexus, a division of Toyota Motor Sales, USA
Submitted to NHTSA on 03/07/2025
NEW
894FF7801400 /
894FG7801300
L-SB-0017-25
February 20, 2025
Page 6 of 6
Shift System Malfunction Warning Message on MID
Repair Procedure
1. Confirm the conditions exist.
Does the vehicle exhibit both of the following conditions at vehicle startup?
A “Shift System Malfunction” message on the MID.
Battery voltage drops below 10V.
YES — Continue to step 2.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
2. Using GTS+, confirm if the ECM (PCM) calibration has been updated.
Is the calibration ID listed in GTS+ the latest ECM (PCM) calibration?
YES — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
NO — Continue to step 3.
3. Flash reprogram the ECM (PCM).
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.
Follow the procedures outlined in L-SB-0036-22, GTS+ ECU Flash Reprogramming With
Security Signature, and flash reprogram the ECM (PCM) with the NEW calibration file update.
4. Using GTS+, clear ANY DTCs and test drive the vehicle to confirm the conditions are no
longer present.
© 2025 Lexus, a division of Toyota Motor Sales, USA
Submitted to NHTSA on 03/07/2025
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TSB/Document ID: L-SB-0017-25
Replacement Service Bulletin Number:
MFR Communication Date: 2025-02-20
MFR Internal Campaign ID/Software Version: L-SB-0017-25
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
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