T-SB-0147-14 Service Bulletin/Repair Instructions

@TOYOTA

Technical Service Bulletin
November 19, 2014
T-SB-0147-14
3rd Row Seat Rear Leg Latch Squeak/Rattle - Manual

Seat Only

Service

Category

Section
Vehicle Interior
Toyota Supports ~
Seat
Market
AS E Certification.
USA
Applicability

YEAR(S)
MODEL(S)
ADDITIONAL INFORMATION
2011 - 2014
Sienna
Plant Code(s): S

WMl (s): 5TD
Introduction

Some 2011 - 2014 model year Sienna vehicles may exhibit a condition where a rattle or squeak type

noise is heard from the rear of the vehicle while driving over rough road surfaces when the seats are

empty in the upright latched position . If the 3rd row seats are stowed , the noise is no longer present.

Follow the Repair Procedure in thi s bulletin to address this condition .

Parts Information

PART NUMBER

COLOR

PREVIOUS
NEW
79997-08011 -B1
79997-08012-B1
Dark Gray
79997-08011-B2
79997-08012-B2
Gray
79997-08011 -E1
79997-08012-E1
Ash Brow n
71324-08010
71324-08011
-
PART NAME
QTY
-
Protector, Seat Leg Box, No. 1
-
2

2

2
Cushion , RR Seat
2
Warranty Information

OP CODE
DESCRIPTION
TIME
OFP
T1
T2
BD1424
R & R W-Cups/Outside Bumpers and

Adjust Seat Tension
2.0
79997-08011 -B 1

79997-0801 1-B2

79997-08011 -E 1

71324-08010
91
40
APPLICABLE WARRANTY

• This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36 months

or 36,000 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 Toyota Motor Sales, USA
Page 1 of 9
@ TOYOTA
T-SB-0147 -14
Page 2 of 9
November 19, 2014
3rd Row Seat Rear Leg Latch Squeak/Rattle - Manual Seat Only
Required Tools & Equipmen t

REQUIRED TOOLS
QUANTITY
Locking Pliers (Vise-Grip®, or equivalent)
Repair Proced ure
1. For 2011 model year only:

Confirm that T-SB-0 157-11 , "3rd Row Manual Seat Rattle Noise," has been properly performed ,

if applicable by VIN .

2. Stow both the 60% and 40% side of the 3rd row seats.

3. Replace the W-cups (Seat Leg Box Protectors) and outside bumpers (Seat Cushions).

Figure 1.
A. Remove the W-cups and outside bumpers from the vehicle by prying on them .

B. Install the NEW W-cups and outside bumpers into the vehicle and ensure they are

seated properly.

NOTE

Once the W-c ups are removed, they will no lo nger be usable.
© 201 4 Toyota Motor Sales, USA
@ TOYOTA
T-SB-0147-14
November 19, 2014
Pag e 3 of 9
3rd Row Seat Rear Leg Latch Squeak/Rattle - Manual Seat Only
Repair Procedu re (Continued)
4 . Latch the 3rd row seats in the table-top position .

Figure 2.
5. Adjust the tension on the rear legs for the 3rd row seats on the side the noise is coming from .

A. Remove the upper garnish from the 3rd row seats.

Fig ure 3.
© 2014 Toyota Motor Sales, USA
@ TOYOTA
T-SB-0147-14
November 19, 2014
Page 4 of 9
3rd Row Seat Rear Leg Latch Squeak/Rattle - Manual Seat Only
Repair Proced ure (Continued)
Refer to the Technical Information System (TIS), applicable model and model year

Repair Manual:

• 2011 Sienna:

Vehicle Interior- Seat - "Seat: Rear No. 2 Seat Assembly (for Manual Seat Type

LH Side I RH Side): Removal"

• 2012 Sienna:

Vehicle Interior- Seat - "Seat: Rear No. 2 Seat Assembly (for Manual Seat Type

LH Side I RH Side): Removal"

• 2013 Sien na:

Vehicle Inferior- Seat - "Seat: Rear No. 2 Seat Assembly (for Manual Seat Type

LH Side I RH Side): Removal"

• 201 4 Sienna:

Vehicle Inferior - Seat - "Seat: Rear No. 2 Seat Assembly (for Manual Seat Type

LH Side I RH Side): Removal"

B. Loosen the 10 mm rea r leg bolts on each leg one full turn .

Figure 4.
© 2014 Toyota Motor Sales, USA
@ TOYOTA
November 19, 2014
T-SB-0147-14
3rd Row Seat Rear Leg Latch Squeak/Rattle - Manual Seat Only
Repair Procedure (Continued )
C. Place locking pliers, or similar tool, on rear damper bracket.

Figure 5.
D. Push down on the locking pliers to add tension Figures.

to the leg bracket dampener.

.-------While pushing down, make sure to hold even

pressure on the locking pl iers and ensure they

are pushed down unti l you feel a stop, then

retighten the 1O mm rear leg bolts beginning

with the outer leg first.

Torque: 7 N*m (71 kgf*cm, 5 ft*lbf)
© 2014 Toyota Motor Sales, USA
Page 5 of 9
@ TOYOTA
November 19, 2014
T-SB-0147-14
Page 6 of 9
3rd Row Seat Rear Leg Latch Squeak/Rattle - Manual Seat Only
Repair Procedu re (Continued)
E. If the tensioning procedure was performed correctly, a gap should be present on the

forward section of the bolt head on the inboard facing bolts that were previously loosened .

This gap condition , also known as "winking" condition , should point towards the front of

the vehicle.

NOTE

Winking condition w ill vary by vehicle and seat assembly. Please reference Figure 7 for

examples of correct winking condition .

Figure 7.
1
I
Gap/Winking Condition
2
I
Front of Vehicle
6. Remove the lower garnish from the 3rd row seats.

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

• 2011 Sienna:

Vehicle Interior - Seat - "Seat: Rear No. 2 Seat Assembly (for Manual Seat Type

LH Side I RH Side): Removal"
© 2014 Toyota Motor Sales, USA
@ TOYOTA
T-SB-0147-14
November 19, 2014
Page 7 of 9
3rd Row Seat Rear Leg Latch Squeak/Rattle - Manual Seat Only
Repair Procedure (Continued)
• 2012 Sienna:

Vehicle Interior - Seat - "Seat: Rear No. 2 Seat Assembly (for Manual Seat Type

LH Side I RH Side): Removal"

• 2013 Sienna:

Vehicle Interior - Seat - "Seat: Rear No. 2 Seat Assembly (for Manual Seat Type

LH Side I RH Side): Removal"

• 2014 Sienna:

Vehicle Interior - Seat - "Seat: Rear No. 2 Seat Assembly (for Manual Seat Type

LH Side I RH Side): Removal"

7. Loosen up all seat mechanism bolts to allow the seat to settle.

NOTE

It is important that NO excessive weight is placed on the seat assemblies after performing

this step.

Figure 8.
© 2014 Toyota Motor Sales, USA
@TOYOTA
November 19, 2014
T-SB-0147-14
Page 8 of 9
3rd Row Seat Rear Leg Latch Squeak/Rattle - Manual Seat Only
Repair Procedure (Continued)
8. While consistently pushing forward on the torsion bar, tighten the bolts on the 60% side, in the

sequence shown in Figure 9, to the following specifications.

Torque: 19 N*m (193 kgf*cm, 14 ft*lbf)

Figure 9.
© 2014 Toyota Motor Sales, USA
@ TOYOTA
November 19, 2014
T-SB-0147-14
Page 9 of 9
3rd Row Seat Rear Leg Latch Squeak/Rattle - Manual Seat Only
Repair Procedure (Continued)
9. While consistently pushing forward on the

torsion bar, tighten the bolts on the 40% side,

in the sequence shown in Figure 10, to the

following specifications.
Figure 10.
Torque : 19 N*m (193 kgf*cm, 14 ft*lbf)
10. Reinstall the lower and upper garnish covers.

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

• 2011 Sienna :

Vehicle Interior - Seat - "Seat: Rear No. 2 Seat Assembly (for Manual Seat Type

LH Side I RH Side): Installation"

• 2012 Sienna:

Vehicle Interior - Seat - "Seat: Rear No. 2 Seat Assembly (for Manual Seat Type

LH Side I RH Side): Installation"

• 2013 Sienna:

Vehicle Interior - Seat - "Seat: Rear No. 2 Seat Assembly (for Manual Seat Type

LH Side I RH Side): Installation"

• 2014 Sienna :

Vehicle Interior - Seat - "Seat: Rear No. 2 Seat Assembly (for Manual Seat Type

LH Side I RH Side): Installation"

11 . Cycle the 3rd row seats to ensure proper operation.
© 2014 Toyota Motor Sales, USA

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