L-SB-0104-14 Service Bulletin/Repair Instructions

L-SB-0104-14
November 21 , 2014
Technical Service Information Bulletin
Thump Noise from Rear as Suspension Returns to Rest

Position

Service

Category
Brake
Section
Brake (rea r)
Market
Lexus Supports ~

ASE Certification-
USA
Applicability

YEAR(S)
MODEL(S)
2010 - 2015
RX350
ADDITIONAL INFORMATION
Introduction

Some 2010 - 2015 model year RX 350 vehicles may exhibit an abnorma l noise from the rear cabin

a rea of the vehicle w hen moving forward and lightly braking . The noise is usu ally described as a

thump noise at the end of a stop as the rear suspension returns to a rest position. A new Rear Disc

Brake Anti-Sq ueal Shim Kit, Rear Disc Brake Pad Fitting Kit, and Rear Disc Brake Cylinder Mounting

Brackets are available to address this condition .

NOTE

For vehicles produced BEFORE the Production Change Effective VINs (see the Diagnostic

Procedure for VIN numbers) the Slide Pins No. 1 and No. 2, Dust Boots, and Slide Pin Bushing

No . 1 need to be replaced in order to accept the NEW field fix Rear Disc Cylinder Mounting Brackets.
Warranty Information

OP CODE
BR1400
DESCRIPTION
Remove and Install New Rear Bra ke Shim Kit, Rear

Brake Fitting Kit and Rear Brake Mounting Brackets
TIME
OFP
T1
T2
1.0
47821-0E020

47821 -0E021

47822-0E020

47822-0E021

47821-48100

47821 -48101

4 7822-48100

4 7822-48 101
91
99
APPLICABLE WARRANTY

• This repair is covered under th e 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 descri bed in

this bulletin.
© 2014 Lexus, a division of Toyota Motor Sales, USA
Page 1 of 7
L-SB-0104-14
November 21 , 2014
Page 2 o f 7
Thump Noise from Rear as Suspension Returns to Rest Position
Parts Information

NOTE

See t he D iagnostic Procedure to determine whi ch Repair Procedure to perfo rm .
REPAI R

PROC EDU RE
1 & 2
PART NU MBER

PART NA ME
QTY
04946-0E070
Shim Kit, Anti-Squeal, RR
1
04948-48050

04948-30230
04948-48090
Fitting Kit, Disc Brake , RR
1
47821 -0E020

47821-0E021

47821-48100

47821-48101
4782 1-0E100
Mounting, RR Disc Brake, RH
1
47822-0E020

47822-0E021

47822-48100

47822-48101
47822-0E100
Mounting, RR Disc Brake, LH
1
Pad Kit, Disc Brake L/Fitting Parts, RR*
1
PREVIOUS
NEW
04946-0E030

04946-48110
04466-0E010

04466-48130
1
47814-48100

47814-0E020
47814-06120
No. 1 Slide Pin
2
47815-48100

478 15-0E020
47815-06120
No. 2 Slide Pin
2
04479-0E020

04479-4 8130
04479-48150
Cylinder Kit, Disc Brake, Rear**
1
* Inspect brake pads and only replace if needed.

** Only Replace Slide Pin Boots and Bushing included in Kit.
© 2014 Lexus, a division of Toyota Motor Sales, USA
L-SB-0104-14
November 21 , 2014
Page 3 of 7
Thump Noise from Rear as Suspension Returns to Rest Position
Diagnostic Procedure
1. Test drive the vehicle to confirm the condition .

Condition Noise Example Video

Is the condition noise present?

• YES • NO -
Continue to step 2.

This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.
2. Check the vehicle's VIN to determine which Repair Procedure to follow.

Repair Procedure 1:

• All 2010 - 2012 model year RX 350 vehicles produced BEFORE the Production Change

Effective VINs shown below.

PLANT
TMMK
TMMC
PRODUCTION CHANGE EFFECTIVE VIN
JTJBC1BA#C2427366

JTJBK1BA#C2443979

JTJZB1BA#C2406735

JTJZK1BA#C2412848

2T2BK1BA#CC125377

2T2ZK1BA#CC067245
Repair Procedure 2:

• All 2012 - 2015 model year RX 350 vehicles produced AFTER the Production Change

Effective VINs shown in the table above.
© 2014 Lexus, a division of Toyota Motor Sales, USA
L-SB-0104-14
No v ember 21, 2014
Pag e 4 o f 7
Thump Noise from Rear as Suspension Returns to Rest Position
Repai r Proced ure 1
1. Remove Rear Disc Brake Pads, Anti-Squeal Shim Kit, Disc Brake Pad Fitting Kit, and Disc

Brake Cylinder Mounting Brackets, No. 1 and No. 2 Sl ide Pins, No. 1 Slide Pin Bushing , and

boots for No. 1 and No. 2 Slide Pins.

Refer to the Technical Information System (TIS) , applicable model and model year

Repair Manual:

• 2010 (12/2008 - 08/2009) / 2010 (08/2009 - ) / 2012 1 2013 / 2014 I 2015 RX 350 :

Brake - Brake (rear) - "Brake (rear): Rear Brake: Removal"

2. Inspect the rear brakes.

Refer to TIS, applicable model and model yea r Repair Manual:

• 2010 (12/2008- 08/2009) / 2010 (08/2009-) / 2011 / 2012 12013 / 2014 1 2015 RX 350 :

Brake - Brake (rear) - "Brake (rear): Rear Brake: Inspection"

3. Install the NEW service pa rt Rear Disc Brake Anti-Squeal Shim Kit, Disc Brake Pad Fitting

Kit, and Disc Brake Cylinder Mounting Brackets, No. 1 and No. 2 Slide Pins, No. 2 Slide Pin

Bushing, and boots for No. 1 and No. 2 Slide Pins and rear brake pads (if need to be replaced).

NOTICE

Inst all Brake Pad Support Cl ips 1 and 2 on th e bottom side of the Rear Disc Mou nting Brackets.
NOTE

The NEW Brake Pad Su pport Clips have PET tape attac hed to th e back side of th e clip.
NOTICE

• When installing th e NEW rear

brake shims to rear brake pads ,

do NOT apply disc brake grease

t o shims or disc b rake pad

backin g plat e.
Figu re 1. NEW 1-Piece Rear Brake Shim
• If reinstalling th e USED pads ,

remove all s him grease from

the backing plates BEFORE

installing s hims.

• Assemble these parts dry.
© 2014 Lexus, a division of Toyota Motor Sales, USA
L-SB-0104-14
November 21, 2014
Page 5 of 7
Thump Noise from Rear as Suspension Returns to Rest Position
Repair Procedure 1 (Continued)

Figure 2.
1
Brake Pad Support Plate Clip No. 1 - Left Side
2
Brake Pad Support Plate Clip No. 2 - Right Side
3
PET Tape Attached to Back Side of Brake Pad

Support Plate Clips No. 1 and No. 2 for Bottom

Side of Rear Brake Caliper Mounting Brackets
Refer to TIS, applicable model and model year Repair Manual:

• 2010 (12/2008-08/2009) I 2010 (08/2009-) I 2011 I 2012 I 2013 I 2014 I 2015 RX 350:

Brake - Brake (rear) - "Brake (rear) : Rear Brake: Installation"

4. Install rear disc brake cylinder assembly to rear brake mounting.

Refer to TIS , applicable model and model year Repair Manual:

• 2010 (12/2008 - 08/2009) I 2010 (08/2009 - ) I 2011 I 2012 I 201 3 I 2014 I 2015 RX 350 :

Brake - Brake (rear) - "Brake (rear): Rear Brake: Installation "

5. Road test the vehicle to confirm the conditi on has been corrected .

Repair Procedure 2
1. Remove Rear Disc Brake Pads, Anti-Squeal Shim Kit, Disc Brake Pad Fitting Kit, Rear Disc

Brake Cylinder Mounting Brackets.

Refer to the Technical Information System (TIS), applicable model and model year

Repair Manual:

• 2010 (12/2008 - 08/2009) I 2010 (08/2009 - ) I 2012 I 2013 I 2014 I 2015 RX 350 :

Brake - Brake (rear) - "Brake (rear) : Rear Brake: Removal"
© 2014 Lexus, a division of Toyota Motor Sales, USA
L-SB-0104-14
November 21 , 2014
Page 6 of 7
Thump Noise from Rear as Suspension Returns to Rest Position
Repair Procedure 2 (Continued)
2. Inspect the rear brakes.

Refer to TIS, applicable model and model year Repair Manual:

·• 2010 (12/2008 - 08/2009) I 2010 (08/2009 - ) I 20 11 I 2012 I 2013 I 2014 I 2015 RX 350:

Brake - Brake (rear) - "Brake (rear): Rear Brake: Inspection "

3. In stall the NEW service part Rear Disc Brake Anti-Squeal Shim Kit, Disc Brake Pad Fitting Kit,

and Disc Brake Cylinder Mounting Brackets.

NOTICE

Install Brake Pad Support Clips 1 and 2 o n the bottom side of the Rear Disc Mounting Brac kets .
NOTE

Th e NEW Brake Pad Support Clips have PET tape attached to the back side of the clip.
NOTICE

• Wh en installing the NEW rear

brake shims to rear brake pads,

do NOT apply disc brake grease

to s hims o r disc brake pad

backing plate .
Figure 3. NEW 1-Piece Rea r Brake Shim
• If reinstalling the USED pads,

remove all s him grease from

the backing plates BEFORE

i nsta lling s hims.
• Assemble these parts dry.
© 201 4 Lexus, a division of Toyota Motor Sales, USA
L-SB-0104-14
November 21 , 2014
Page 7 of 7
Thump Noise from Rear as Suspension Returns to Rest Position
Repair Procedu re 2 (Continu ed)

Figure 4.
1
Brake Pad Support Plate Clip No. 1 - Left Side
2
Brake Pad Support Plate Clip No. 2 - Right Side
3
PET Tape Attached to Back Side of Brake Pad

Support Plate Cli ps No. 1 and No. 2 for Bottom

Side of Rear Brake Caliper Mounting Brackets
Refer to TIS, applicable model and model year Repair Manual:

• 2010 (12/2008 - 08/2009) I 2010 (08/2009 - ) I 2011 I 2012 I 2013 I 2014 I 2015 RX 350:

Brake - Brake (rear) - "Brake (rear): Rear Brake: Installation"

4 . Install rear disc brake cylinder assembly to rear brake mounting.

Refer to TIS, applicable model and model year Repair Manual:

• 2010 (12/2008 - 08/2009) I 2010 (08/2009 - ) I 2011 I 2012 I 2013 I 2014 I 2015 RX 350:

Brake - Brake (rear) - "Brake (rear): Rear Brake: Installation"

5. Road test the vehicle to confirm the condition has been corrected .
© 2014 Lexus, a division of Toyota Motor Sales, USA

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