L-SB-0045-23

Rev1

September 8, 2023

2024 TX 350, TX 500h, and TX 550h+ Pre-Delivery
Service (PDS)
Service
Category

General

Section

Pre-Delivery Service

Market USA

Applicability
YEAR(S)

MODEL(S)

2024

TX350, TX500H, TX550H+

ADDITIONAL INFORMATION

REVISION NOTICE
December 14, 2023 Rev1:
 Applicability has been updated to include 2024 model year TX 550h+ vehicles.
 The Introduction, Required Tools & Equipment, Tire Pressure Warning System (TPWS)
Initialization, and Seating Position Control ECU Initialization sections have been updated.
 The Enable Hybrid Battery Thermal Keep Control Mode, Confirm Hybrid Battery
Thermal Control Mode State, and Set Hybrid Battery Thermal Keep Control Mode sections
have been added.
Any previous printed versions of this bulletin should be discarded.

© 2023 Lexus, a division of Toyota Motor Sales, USA

Page 1 of 10

L-SB-0045-23

Rev1

September 8, 2023

Page 2 of 10

2024 TX 350, TX 500h, and TX 550h+ Pre-Delivery Service (PDS)
Introduction

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 input their dealer information and set the
service reminder on the Navigation Screen before delivery. By doing this, customers will be
reminded to return to your dealership for service. (See Page 2 of the TX 350/TX 500h/TX 550h+
PDS Check Sheet “Set Dealer and Service Reminder.”)
This bulletin contains the PDS procedures that apply specifically to the 2024 model year TX 350,
TX 500h, and TX 550h+ vehicles. To properly perform a complete PDS, you must complete all
procedures contained in this TSB as well as the TX350/500h/550h+ PDS Check Sheet.
In addition, if the vehicle is stored for over 30 days, be sure to follow Long-Term Vehicle
Storage Guidelines.

© 2023 Lexus, a division of Toyota Motor Sales, USA

L-SB-0045-23

Rev1

September 8, 2023

Page 3 of 10

2024 TX 350, TX 500h, and TX 550h+ Pre-Delivery Service (PDS)
Table of Contents



Warranty Information............................................................................................................... 4



Required Tools & Equipment ................................................................................................... 4



D/C Cut Fuse Installation ........................................................................................................ 5



Front License Plate and Mounting Bracket Installation* .......................................................... 6



Power Back Door Initialization ................................................................................................ 7



Tire Pressure Warning System (TPWS) Initialization ............................................................... 7



Enable Hybrid Battery Thermal Keep Control Mode* .............................................................. 8


Confirm Hybrid Battery Thermal Control Mode State ......................................................... 8



Set Hybrid Battery Thermal Keep Control Mode ................................................................ 9



Head Unit System Reset ....................................................................................................... 10



Navigation — Set Date & Time by GPS ................................................................................ 10



Seating Position Control ECU Initialization ............................................................................ 10



Customize ACC Function ...................................................................................................... 10
*If applicable.

© 2023 Lexus, a division of Toyota Motor Sales, USA

L-SB-0045-23

Rev1

September 8, 2023

Page 4 of 10

2024 TX 350, TX 500h, and TX 550h+ Pre-Delivery Service (PDS)
Warranty Information
OP CODE

DESCRIPTION

TIME

OFP

T1

T2

N/A

Not Applicable to Warranty

–

–

–

–

Required Tools & Equipment
REQUIRED EQUIPMENT

SUPPLIER

Techstream ADVi*
Techstream 2.0
Techstream Lite

PART NUMBER

QTY

TSADVUNIT
ADE

Techstream Lite (Green Cable)

TS2UNIT
TSLITEPDLR01
TSLP2DLR01

*Essential SST.

NOTE
 Only ONE of the Techstream units listed above is required.
 GTS+ software version 2023.04.003.02 or later is required.
 Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.

© 2023 Lexus, a division of Toyota Motor Sales, USA

1

L-SB-0045-23

Rev1

September 8, 2023

Page 5 of 10

2024 TX 350, TX 500h, and TX 550h+ Pre-Delivery Service (PDS)
D/C Cut Fuse Installation

To minimize battery discharge during transportation and storage, the D/C cut fuse (20A) has been
removed at the assembly plant and temporarily stored in the blank space of the relay block in the
engine compartment. During PDS, reinstall the D/C cut fuse (20A) into its original location and
clear ALL related Diagnostic Trouble Codes (DTCs).
Figure 1.

1

2
3

1

Relay Block

3

2

Remove D/C Cut Fuse (20A)

Install D/C Cut Fuse (20A) (Original Location)

NOTE
 With the D/C cut fuse (20A) removed, if any DTCs are detected when the ignition is turned ON during
transportation, use Global Techstream Software (GTS) to clear ALL DTCs AFTER ensuring that
there are NO malfunctions.
 While the vehicle is stored at the dealership, disconnect the negative (–) battery terminal to prevent
battery discharge. Refer to L-SB-0016-23, Battery Maintenance During PDS, for battery
maintenance information.

© 2023 Lexus, a division of Toyota Motor Sales, USA

L-SB-0045-23

Rev1

September 8, 2023

Page 6 of 10

2024 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

Self-tapping Screws

© 2023 Lexus, a division of Toyota Motor Sales, USA

3

L-SB-0045-23

Rev1

September 8, 2023

Page 7 of 10

2024 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 to the mounting bracket at holes “B” using two non-corroding
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
1

2

1

Length

1

Bolts

2

Diameter

2

Front License Plate

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.

Tire Pressure Warning System (TPWS) Initialization

After adjusting all the tires to the correct air pressure, perform the initialization of the Tire Pressure
Warning System. Refer to the applicable Repair Manual for the TPWS initialization procedure
(TX 350 / TX 500h / TX 550h+).
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.

© 2023 Lexus, a division of Toyota Motor Sales, USA

L-SB-0045-23

Rev1

September 8, 2023

Page 8 of 10

2024 TX 350, TX 500h, and TX 550h+ Pre-Delivery Service (PDS)
Enable Hybrid Battery Thermal Keep Control Mode

The HV/BEV battery may be frozen in extremely cold areas. As a result, the HV/BEV battery may
become excessively weak, and the system may NOT be able to be started. By enabling HV/BEV
Battery Thermal Keep Control Mode, it is possible to warm the HV/BEV 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 1. HV/EV Battery Thermal Keep Control Mode
PURPOSE

CONDITION

OPERATION

 Ambient temperature is 14°F
(-10°C) or lower.

 Begins to warm the HV/BEV 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/BEV battery from
freezing when a charging start time is set,
when the HV/BEV 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/BEV
battery from freezing

To enable HV/BEV 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. According to the display on GTS, read the Data List.
4. Enter the following menus: Powertrain – HV Battery – Data List – Hybrid Battery Thermal Keep
Control Mode Status.
5. Check the results by referring to the following table:
Table 2.
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

© 2023 Lexus, a division of Toyota Motor Sales, USA

L-SB-0045-23

Rev1

September 8, 2023

Page 9 of 10

2024 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.

© 2023 Lexus, a division of Toyota Motor Sales, USA

L-SB-0045-23

Rev1

September 8, 2023

Page 10 of 10

2024 TX 350, TX 500h, and TX 550h+ Pre-Delivery Service (PDS)
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.

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.

Seating Position Control ECU Initialization

Initialization of the seating position control ECU is required after D/C cut fuse installation.
Refer to the applicable Repair Manual for the seating position control ECU initialization procedure
(TX 350 / TX 500h / TX 550h+) (procedure 2).

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.

© 2023 Lexus, a division of Toyota Motor Sales, USA