NHTSA ID Number: 11012748
Manufacturer Communication Number: L-SB-0052-24
TSB/Document Date: 2025-01-09
Summary
Pre-Delivery Service (PDS) is a critical step in satisfying our new car customers. Customer feedback indicates the following areas deserve special attention when performing PDS: •Careful inspection for paint chips/scratches and body dents/dings. •Proper operation of electrical accessories (including interior light, clock, and radio reset). •Interior cleanliness. •Proper function of mechanical systems. Customer retention and proper maintenance of vehicles are and have always been a major focus for Lexus
. To help remind customers that regular service is essential to the proper maintenance of the vehicle, dealers are required to install a service reminder sticker before delivery. By doing this, customers will be reminded to return to your dealership for service. Your current service reminder sticker may be used. This bulletin contains the PDS procedures that apply specifically to 2025 model year TX 350, TX 500h, and TX 550h+ vehicles. Refer to the universal Check Sheet that contains PDS steps that apply to all 2025 model year Lexus vehicles. To properly perform a complete PDS, you must complete all procedures contained in this TSB as well as the PDS Check Sheet.
While the vehicle is stored at the dealership, disconnect the negative (–) battery terminal to prevent
battery discharge. Refer to L-SB-0001-24, Battery Inspection and Maintenance During PDS, for
battery maintenance information.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0052-24
December 6, 2024
Page 6 of 12
2025 TX 350, TX 500h, and TX 550h+ Pre-Delivery Service (PDS)
Front License Plate and Mounting Bracket Installation
The front license mounting plate bracket and two self-tapping screws are loaded in the vehicle at
the assembly plant. Follow this procedure to install the front license plate mounting bracket and
front license plate in states where it is required by law.
1. Temporarily install the front license plate
mounting bracket to the front bumper so that
the ribs and claws of the front license plate
mounting bracket are in the indicated position.
Figure 2.
1
2. Install the front license plate mounting bracket
to the front bumper using two
self-tapping screws.
2
NOTICE
3
Do NOT overtighten the
self-tapping screws.
4
1
Claw
2
Rib
3
Mounting Bracket
4
© 2024 Lexus, a division of Toyota Motor Sales, USA
3
L-SB-0052-24
December 6, 2024
Page 7 of 12
2025 TX 350, TX 500h, and TX 550h+ Pre-Delivery Service (PDS)
Front License Plate and Mounting Bracket Installation (continued)
3. Install the front license plate onto the mounting bracket using two noncorroding bolts with the
following dimensions:
Length: 15.0 mm (0.59 in.)
Diameter: 6.0 mm (0.24 in.)
Figure 3.
Figure 4.
2
1
2
1
3
1
Length
1
Front License Plate
2
Diameter
2
Mounting Bracket
3
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0052-24
December 6, 2024
Page 8 of 12
2025 TX 350, TX 500h, and TX 550h+ Pre-Delivery Service (PDS)
Power Back Door Initialization
As a result of the removal of the D/C cut fuse with the back door open, the “automatic open and
close” function of the power back door will be inoperative due to loss of the back door position
memory stored in the ECU. Refer to the applicable Repair Manual for the power back door
initialization procedure.
2025 TX 350, TX 500h, and TX 550h+:
Vehicle Exterior – Door / Hatch – Back Door Closer ECU – Initialization
Tire Pressure Warning System (TPWS) Initialization
Refer to the applicable Repair Manual for the TPWS initialization procedure.
2025 TX 350, TX 500h, and TX 550h+:
Suspension – Tire Pressure Monitoring – Tire Pressure Warning Receiver – Initialization
NOTE
To adjust the tire pressure correctly when the outside temperature is significantly colder than shop
temperature, perform a Health Check using GTS+ and select the compensation tire pressure
checkbox. Compensation pressures will display on the Health Check results screen. Adjust the tire
pressure when the tires are cold.
If the vehicle has a spare tire, it does NOT have a TPWS sensor.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0052-24
December 6, 2024
Page 9 of 12
2025 TX 350, TX 500h, and TX 550h+ Pre-Delivery Service (PDS)
Enable Hybrid Battery Thermal Keep Control Mode (TX550h+ Only)
The HV/EV Battery may be frozen in extremely cold areas. As a result, the HV/EV Battery may
become excessively weak, and the system may NOT be able to be started. By enabling Hybrid
Battery Thermal Keep Control Mode, it is possible to warm the HV/EV Battery and maintain its
current temperature in order to prevent it from becoming excessively weak.
When this mode is set to ON, the timer charging settings are canceled at temperatures of 14°F
(-10°C) or lower. Charging will begin immediately when the charging cable is connected to
the vehicle.
Table 2. HV/EV Battery Thermal Keep Control Mode
PURPOSE
CONDITION
OPERATION
Ambient temperature is 14°F
(-10°C) or lower.
Begins to warm the HV/EV Battery to
maintain its current temperature when the
ambient temperature drops to 14°F
(-10°C) or lower when the charging cable is
connected to the vehicle.
Charging cable is connected to
the vehicle.
To prevent the HV/EV Battery from freezing
when a charging start time is set, when the
Hybrix Battery Thermal Keep Mode is
enabled, the charging timer will be disabled,
and charging will begin immediately when the
charging cable is connected to the vehicle.
Prevent HV/EV
Battery from freezing
To enable Hybrid Battery Thermal Keep Control Mode, it is necessary to use GTS+ during PDS
at the dealership.
Confirm Hybrid Battery Thermal Keep Control Mode State
1. Connect the Techstream to the DLC3.
2. Turn the power switch IG-ON.
3. Enter the following menus: Powertrain – HV Battery – Data List –
Hybrid Battery Thermal Keep Control Mode Status.
4. Check the results by referring to the following table:
Table 3.
Tester Display
Measurement Item
Range
Normal Condition
Hybrid Battery
Thermal Keep Control
Mode Status
Hybrid Battery
Thermal Keep Control
Mode State
ON or OFF
ON: Enabled
OFF: Disabled
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0052-24
December 6, 2024
Page 10 of 12
2025 TX 350, TX 500h, and TX 550h+ Pre-Delivery Service (PDS)
Enable Hybrid Battery Thermal Keep Control Mode (continued)
Set Hybrid Battery Thermal Keep Control Mode
1. Connect the Techstream to the DLC3.
2. Turn the power switch to IG-ON.
3. Enter the following menus: Powertrain – HV Battery – Utility –
Hybrid Battery Thermal Keep Control Mode.
Figure 5.
4. Confirm the following message is displayed:
“This function is used to turn the Hybrid Battery Thermal Keep Control Mode ON / OFF.”
5. Confirm that the conditions displayed on the screen are met, and then press Next.
NOTE
The power switch is ON (Ready OFF).
6. Confirm the following message is displayed:
“Select Hybrid Battery Thermal Keep Control Mode.”
7. Select ON and press Next.
NOTICE
Selecting ON may disable the charging timer.
8. Confirm the following message is displayed:
“Hybrid Battery Thermal Keep Control Mode is complete.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0052-24
December 6, 2024
Page 11 of 12
2025 TX 350, TX 500h, and TX 550h+ Pre-Delivery Service (PDS)
Seating Position Control ECU Assembly Initialization
Follow Registration Procedure 2, Position Control ECU Assembly Initialization.
Refer to TIS, applicable model and model year Repair Manual:
2025 TX 350, TX 500h, and TX 550h+:
Vehicle Interior – Seat – Front Power Seat Control System (W/ Memory) – Registration
Head Unit System Reset
Prior to vehicle delivery, confirm that the welcome screen with language options appears on
the head unit display when the ignition is switched to the ON position. There may be instances
where the welcome screen with language options may not properly appear on the
head unit display.
If the welcome screen showing language options is NOT displayed, complete the
following steps:
1. Select the Settings option (gear icon).
2. Scroll down and select the Info & Security option.
3. The System Reset dialogue box will appear. Select Reset to confirm the resetting of
the system.
4. Confirm that the welcome screen with language options is now displayed.
Customize ACC Function
The pre-startup function detects when a user enters the vehicle, and it energizes the audio head
unit (+BA) so that the multimedia system can quickly be used. This function is not enabled at the
factory to reduce parasitic current draw in transit and storage. To enable this function, it is
necessary to set the ACC customization function in the navigation display to OFF.
1. Turn the engine switch (power switch) to the ON position (ON mode).
2. Enter the following menus: Settings – Vehicle Customization – Utility – ACC Customize.
3. Change the setting to OFF.
© 2024 Lexus, a division of Toyota Motor Sales, USA
L-SB-0052-24
December 6, 2024
Page 12 of 12
2025 TX 350, TX 500h, and TX 550h+ Pre-Delivery Service (PDS)
Dealer Contact Information for Call Dealer Head Unit Function (Premium Audio Only)
Refer to the Multimedia System Owner’s Manual to add dealer contact information.
2025 TX 350, TX 500h, and TX 550h+:
Section 2-8 Vehicle Settings – Setting Dealer Information
Navigation — Set Date & Time by GPS
Prior to vehicle delivery, it is necessary to turn the Set Date & Time by GPS setting to the
ON position.
1. Turn the engine switch (power switch) to the ON position (ON mode).
2. Navigate the following menus in the head unit: Settings – General – Date & Time –
Set date & time by GPS.
3. Ensure the Set Date & Time by GPS function is set to the ON position.
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TSB/Document ID: L-SB-0052-24
Replacement Service Bulletin Number:
MFR Communication Date: 2024-12-06
MFR Internal Campaign ID/Software Version: L-SB-0052-24
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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