NHTSA ID Number: 11026323
Manufacturer Communication Number: L-SB-0053-25
TSB/Document Date: 2025-12-05
Summary
Some 2024 – 2026 model year GX 550, 2022 – 2026 model year LX 600, and 2025 – 2026 model year LX 700h vehicles may exhibit a condition where the front brakes produce a squealing noise when driving forward or in reverse.
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TSB/Document ID: L-SB-0053-25
Replacement Service Bulletin Number:
MFR Communication Date: 2025-11-21
MFR Internal Campaign ID/Software Version: L-SB-0053-25
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SERVICE BRAKES
MFR Component System:
MFR Component Subsystem:
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L-SB-0053-25
November 21, 2025
Front Brake Squeal Noise
Service
Category
Brake
Section
Brake (front)
Market USA
Applicability
YEAR(S)
MODEL(S)
2024 - 2026
GX550
2022 - 2026
LX600
2025 - 2026
LX700H
ADDITIONAL INFORMATION
SUPERSESSION NOTICE
The information contained in this bulletin supersedes Service Bulletin No. L-SB-0036-24.
Applicability has been updated to include 2025 – 2026 model year LX 700h and 2026 model year
GX 550 and LX 600 vehicles.
The Introduction and Repair Procedure sections have been updated.
Service Bulletin No. L-SB-0036-24 is obsolete and any printed versions should be discarded.
Introduction
Some 2024 – 2026 model year GX 550, 2022 – 2026 model year LX 600, and 2025 – 2026 model
year LX 700h vehicles may exhibit a condition where the front brakes produce a squealing noise
when driving forward or in reverse. Follow the Repair Procedure in this bulletin to reduce the
possibility of this condition.
© 2025 Lexus
, a division of Toyota Motor Sales, USA
Page 1 of 9
L-SB-0053-25
November 21, 2025
Page 2 of 9
Front Brake Squeal Noise
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
BR2505
R & R Front LH & RH Shim Kit, Brake Pad
Kit, and Front Discs
1.8
43512-60290
91
99
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.
Parts Information
PART NUMBER
PART NAME
QTY
43512-0C040
Disc, Front
2
04465-60380
04465-34040
Pad Kit Disc Brake, Front
1
04945-60100
04945-0C060
Shim Kit, Anti Squeal, Front (Grease Included)
1
04947-60150
04947-60140
Fitting Kit, Disc Brake Front (Anti-rattle Spring)
1
1
PREVIOUS
NEW
43512-60290
08887-80609
NOTE
Brake caliper grease is a common service consumable. Verify the dealership stock BEFORE ordering. The
amount of grease supplied in a single order of brake caliper grease is sufficient to repair 10 vehicles.
Required Tools & Equipment
REQUIRED TOOLS & MATERIAL
PART NUMBER
QTY
Disc Brake Piston Spreader Wide Type
09719-77020
09719-77050
1
NOTE
Additional SSTs may be ordered by calling 1-800-368-6787 or by visiting
Home – Service Resources – Lexus Special Service Tools (SSTs).
© 2025 Lexus, a division of Toyota Motor Sales, USA
L-SB-0053-25
November 21, 2025
Page 3 of 9
Front Brake Squeal Noise
Repair Procedure
1. Confirm the condition exists.
Does the vehicle exhibit a condition where the front brakes produce a squealing noise when
driving forward or in reverse?
YES — Continue to step 2.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
2. Remove the tire and wheel, disc, pad, shim kit, and anti-rattle spring.
A. Remove the tire and wheel.
Refer to TIS, applicable model and model year Repair Manual:
2024 – 2026 GX 550:
General – Maintenance – Tire and Wheel – Removal
2022 – 2026 LX 600 and LX 700h:
General – Maintenance – Tire and Wheel – Removal
B. Remove the front disk brake pad.
Refer to TIS, applicable model and model year Repair Manual:
2024 – 2026 GX 550:
General – Maintenance – Front Disc Brake Pad – Removal
2022 – 2024 LX 600:
General – Maintenance – Front Disc Brake Pad – Removal
2025 – 2026 LX 600 and LX 700h:
General – Maintenance – Front Disc Brake Pad – Removal
C. Remove the front brake.
Refer to TIS, applicable model and model year Repair Manual:
2024 – 2026 GX 550:
Brake – Brake (Front) – Front Brake – Removal
2022 – 2024 LX 600:
Brake – Brake (Front) – Front Brake – Removal
2025 – 2026 LX 600 and LX 700h:
Brake – Brake (Front) – Front Brake – Removal
© 2025 Lexus, a division of Toyota Motor Sales, USA
L-SB-0053-25
November 21, 2025
Page 4 of 9
Front Brake Squeal Noise
Repair Procedure (continued)
3. Confirm that the rotor is NEW and then install
the NEW rotor.
Does the rotor have a gold dot on the hat?
YES — Install the NEW rotor.
NO — Do NOT proceed with repair until a
correctly marked rotor is obtained.
Figure 1. New Rotor With Gold Dot
1
c
Refer to TIS, applicable model and model year
Repair Manual:
2024 – 2026 GX 550:
Brake – Brake (Front) –
Front Brake – Installation
1
Gold Dot
2022 – 2024 LX 600:
Brake – Brake (Front) –
Front Brake – Installation
2025 - 2026 LX 600 and LX 700h:
Brake – Brake (Front) –
Front Brake – Installation
4. Assemble the brake pad and shim kit.
A. Place the shim plate on the back of the
brake pad as shown in Figure 2.
Figure 2. Shim Plate on the Back of the Brake Pad
B. Apply grease ONLY to the ten locations
shown in Figure 2.
NOTE
Use the grease included with the
shim kit.
C. After applying grease, carefully place the
solid shim on top.
Locations of Grease Application
© 2025 Lexus, a division of Toyota Motor Sales, USA
L-SB-0053-25
November 21, 2025
Page 5 of 9
Front Brake Squeal Noise
Repair Procedure (continued)
5. Apply brake caliper grease to the cylinder (caliper) areas shown in Figures 3 and 4.
Figure 4.
Figure 3.
1
c
1
c
1
Area of Grease Application
© 2025 Lexus, a division of Toyota Motor Sales, USA
L-SB-0053-25
November 21, 2025
Page 6 of 9
Front Brake Squeal Noise
Repair Procedure (continued)
6. Install the front disc brake pad kit.
Using the disc brake piston spreader wide type, push back the front disc brake pistons, and
install the brake pad with the wear indicator and shims inside the caliper as shown in Figure 5.
Ensure the brake pads orientation match the images in Figures 6 and 7.
NOTE
The brake pad with the wear indicator is the inner pad and the brake pad without the wear indicator
is the outer pad.
Figure 5. Brake Pad Installation
2
2
1
c
1
Disc Brake Piston Spreader Wide Type
2
Brake Pad with Wear Indicator
3
Wear Indicator
3
© 2025 Lexus, a division of Toyota Motor Sales, USA
3
c
L-SB-0053-25
November 21, 2025
Page 7 of 9
Front Brake Squeal Noise
Repair Procedure (continued)
Figure 6. Left Front Brake Pad
Figure 7. Right Front Brake Pad
2
1
1
Left Front Brake Pad
2
Right Front Brake Pad
2
© 2025 Lexus, a division of Toyota Motor Sales, USA
1
L-SB-0053-25
November 21, 2025
Page 8 of 9
Front Brake Squeal Noise
Repair Procedure (continued)
7. Install the anti-rattle kit.
A. Install the front disc brake anti-rattle pin with a hole (upper side).
B. Install the NEW brake anti-rattle spring, then install the front disc brake anti-rattle pin with
hole (lower side) as shown in Figure 8.
C. Install the pin hold clip to the front disc brake anti-rattle pin with hole and engage the hook
to the disc brake cylinder assembly as shown in Figure 9.
D. Discard the OLD brake anti-rattle spring.
Figure 8.
Figure 9.
1
c
1
2
c
3
1
Front Disc Brake Anti-rattle Pin (Upper Side)
2
New Brake Anti-rattle Spring
3
Front Disc Brake Anti-rattle Pin (Lower Side)
1
Pin Hold Clip
© 2025 Lexus, a division of Toyota Motor Sales, USA
L-SB-0053-25
November 21, 2025
Page 9 of 9
Front Brake Squeal Noise
Repair Procedure (continued)
8. Install the tire and wheel.
Refer to TIS, applicable model and model year Repair Manual:
2024 – 2026 GX 550:
General – Maintenance – Tire and Wheel – Installation
2022 – 2026 LX 600 and LX 700h:
General – Maintenance – Tire and Wheel – Installation
9. Test-drive the vehicle and brake at low speeds driving forward and in reverse to confirm the
condition is no longer present.
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