July 11, 2012

Rev1

L-58-0060-12

Technical Service Informati on Bul letin

Roof Panel Pop Noise
Service
Category

Veh icle Exterior
Lexus Supports

Section

Market

Sliding Roof/Convertible

~

ASE Certification-

USA

Applicability
YEAR(S)

MODEL(S)

2013

GS350 , GS450H

ADDITIONAL INFORMATION

REVISION NOTICE
March 26, 2014 Rev1:
• Applicability has been updated to include 2013 model year GS 450h vehicles.
• The Production Change Information, Parts Information, and Repair Procedure sections have
been updated.
Any previous printed versions of this bulletin should be discarded.

Introduction
Some 2013 GS 350 and GS 450h vehicles may exhibit a "pop" or "snap" type noise in the sunroof
area of the roof panel , especially when entering driveways or travelling over bumps that induce a
momentary body flex . This noise may be caused by an intermittent stick/slip condition between the
sunroof housing and fasteners. Follow the procedure in this bulletin to address this condition .
Production Change Information
This bulletin applies to vehicles produced BEFORE the Production Change Effective VINs shown
below.
MODEL

DRIVETRAIN

PRODUCTION CHANGE EFFECTIVE VIN

2WD

JTHBE1BL#D5015380

AWD

JTHCE1 BL#D5011774

2WD

JTHBS1BL#D5004505

GS 350
GS 450h

Parts Information
PART NUMBER
PREVIOUS

NEW

90179-06216*

90179-0627 4

PART NAME

QTY

CZ Fastener Coating Nut (Black)

4

© 20 14 Lexu s, a division of Toyota Motor Sales, USA

Page 1 of 26

L-58-0060-12

Rev1

July 11, 2012

Page 2 of 26

Roof Panel Pop Noise

Parts Information (Continued)
PART NUMBER
PART NAME

QTY

901 Tl -06002

Lock nut (Silver)

4

74611-33010-##

Assist Grip Cover

4

74612-33020-##

Assist Grip Cover

4

62217-30040
62217-52120**

Front Pillar Garnish Clip

2

90467-10167

Upper Center Pillar Garnish Panel Clip

2

I

PREVIOUS

NEW

* 90179-06216 is a non-service part number used for production only. The EPC lists 90179-06274 as the service

part number.

** Confirm applicable parts when ordering replacements.
Required Tools & Equipment
SPECIAL SERVICE TOOLS (SST)

Plastic Pry Tool Kit*

PART NUMBER

QTY

00002-06020-02

1

* Essential SST.

NOTE
Additional SSTs may be ordered by calling 1-800-933-8335.
TOOLS & MATERIAL

PART NUMBER

QTY

3M™ Semi Rigid Plastic Repair 50ml Cartridge or equivalent (if required)

PN34240

1

3M™ Polyolefin Adhesion Promoter -Aerosol Can or equivalent (if required)

PN05907

1

Warranty Information
OP CODE

DESCRIPTION

TIME

OFP

T1

T2

801218

R & R Sliding Roof Housing Sub-Assy

3.0

63203-30180

91

14

APPLICABLE WARRANTY
• This repair is covered under the Lexus Comprehensive 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.

© 2014 Lexus, a division ofToyota Motor Sales, USA

L-58-0060-12

Rev1

July11,2012

Page 3 of 26

Roof Panel Pop Noise

Service Bulletin Overview

Read the entire Service Bulletin to fully understand the procedure to reduce the chance of damaging
expensive interior components.
1. Confirm the condition described in the Introduction .
2. Remove the necessary interior garnishes and parts to gain access to the sliding roof mechanism
mounting nuts.
3. Carefully unfasten the headliner taking care NOT to bend or damage the part to gain access
to the sliding roof mounting nuts.

NOTE
It is NOT necessary to completely remove the headliner.

4. With the help of an assistant to prevent damage to the headliner, install the NEW slid ing roof
mounting nuts. Follow the nut installation procedure exactly as explained in this bulletin .
5. Reassemble and road test to confirm repair.

© 201 4 Lexu s, a divis ion of Toyota Motor Sales, USA

L-SB-0060-12

Rev1

July 11, 2012

Page 4 of 26

Roof Panel Pop Noise

Repair Procedure
Figure 1. Left and Right Side Parts Location

1

Left Side

7

Rea r Door Scuff Plate

2

Right Side

8

Lower Center Pillar Garn ish

3

Front Door Opening Trim Cover

9

Front Door Scuff Plate

4

Front Pillar Garnish

10

NEW Upper Front Pillar Garnish Clips (Required)

5

Upper Center Pillar Garnish

11

NEW Upper Center Pillar Garnish Clips (Requ ired)

6

Screw

© 2014 Lexus, a division of Toyota Motor Sales , USA

L-SB-0060-12

Rev1

Page 5 of 26

July 11, 2012

Roof Panel Pop Noise

Repair Procedure (Continued)
Figure 2. Viso r and Map Light Assembly Overview

•
\

'

\
\

\
\,

,•

~

f
.
\

0

I

®

1

Visor Assembly RH

6

Visor Holder

2

Map Light Assembly

7

With Night View System

3

Visor Assembly LH

8

Without Night View System

4

Screw

9

Front Roof Top Garnish

5

Visor Bracket Cover

© 2014 Lexus, a division of Toyota Motor Sales , USA

.

)

~-

~

~

L-SB-0060-12

Rev1

July 11 , 2012

Roof Panel Pop Noise

Repair Procedure (Continued)
Figure 3. Roof Headlining Assembly Overview

1

Sliding Roof

5

Rear Assist Grip Assembly RH

2

Mounting Nut

6

Front Assist Grip Assembly LH

3

Roof Headlining Assembly

7

Rear Assist Grip Assembly LH

4

Front Assist Grip Assembly RH

8

Assist Grip Cover*

* Replace assist grip covers with new ones.

© 2014 Lexus, a division of Toyota Motor Sa les, USA

Page 6 of 26

L-SB-0060-12

Rev1

July 11, 2012

Page 7 of 26

Roof Panel Pop Noise

Repair Procedure (Continued)
NOTE
After turning the ignition switch OFF, waiting time may be required before disconnecting the cable
from the battery terminal. Make sure to read the Notice for disconnecting the cable from the battery
terminal before proceeding with work. Record customer's radio presets, and customized settings.
Refer to the Technical Information System (TIS), applicable model and model year Repair Manual :

• 2013 GS 350 I 450h :
Repair Instruction - Precaution - "Introduction: Repair Instruction: Precaution "

HINT
Use the same procedures described below for the RH side unless stated otherwise.

1. Slide the sliding roof to the full open position .
HINT
Since replacement of sliding roof mounting nuts requires plenty of workspace, the sliding
roof needs to be opened in advance.

2. Move the front seats to the most forward position .
HINT
Since removal of the upper center pillar garnishes requires plenty of workspace, the seats
need to be moved in advance.

3. Disconnect the cable from the negative (-) battery terminal.
CAUTION
Wait for at LEAST 90 seconds after disconnecting the cable to ensure the airbags are no
longer operational.

© 2014 Lexus, a division of Toyota Motor Sa les, USA

L-SB-0060-12

Rev1

July 11 , 2012

Page 8 of 26

Roof Panel Pop Noise