ATTENTION: This Technical
Service Bulletin was issued by
Gulf States Toyota, Inc.
For Toyota Dealers located in the Gulf States Toyota Region:
Please refer to GST Dealer Daily to obtain instructions on how to order
parts and submit a warranty claim (If applicable).
For Toyota Dealers NOT located in Texas, Oklahoma, Mississippi,
Arkansas or Louisiana: For Repair Authorization, Parts Ordering,
and Warranty Claims please contact GST Accessory Technical
Support at 1-800-444-1074.
Thank you for your continued support.

GST-TSB-18-002
Bulletin

August 3, 2018

Technical Service

Running Board Sagging
Service Category:
Section:

Accessory
Body

Market:

USA

Applicability
YEAR

MODEL

2015-2017

Highlander

INSTALLED ACCESSORY INFORMATION
ACCESSORY LIO
DESCRIPTION
CODE
PART NUMBER
Brushed Stainless
R1
00012H-1573-01
Steel Running Boards

NOTE
This TSB only applies to vehicles invoiced at Gulf States Toyota between 9/1/2015 – 11/6/2017.

Introduction
Some 2015-2017 MY Highlander vehicles equipped with Brushed Stainless Steel Running Boards
accessory may exhibit a condition in which the rear portion of the running board sags if subjected to an
unusual amount of pressure. The condition may be present on both the driver and passenger side of the
vehicle. This repair procedure is intended to provide a resolution to this potential issue.

Page 1 of 10

GST TSB-18-002

August 3, 2018

Running Board Sagging
Warranty Information

GST Installed Product
Model

Operation
Code
Operation
Code
Description
OFP
TSB No.
Trouble Code
Labor Time
Replacement
Part
Replacement
Part Quantity

Highlander
Model Years
(2015-2017)
Invoice Date
(9/1/15-11/6/17)
LIO

Highlander
Model Years
(2015-2017)
DIO

Highlander
Model Years
(2015-2017)
DIO

Highlander
Model Years
(2015-2017)
Invoice Date
(9/1/15-11/6/17)
LIO

B18601

B18602

B18603

B18604

RH and LH
brackets to be
added

RH and LH
brackets to be
added

Repair beyond
bracket addition.
Invoice required.

Repair beyond
bracket addition.
Invoice required.

00012-H1573-01
TS04
99
1.0

00012-H1573-01
TS04
99
1.0

00012-H1573-01
TS04
99
1.0

00012-H1573-01
TS04
99
1.0

00012-H1873-11

00012-H1573-11

00012-H1573-11

00012-H1573-11

1

1

1

1

NOTE



Please reference the Warranty Instructions on how to file a claim for this TSB in Dealer
Daily under the Warranty Tab.
Search for TS04 – Highlander Bracket

APPLICABLE WARRANTY


This repair is covered under the basic vehicle 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.

Page 2 of 10

GST TSB-18-002

August 3, 2018

Running Board Sagging
Parts Information
Part Number
00012-H187311

Reference
A1
A2
B
C
D
E
F1
F2
G
H
I

Qty
1
1
2
2
2
2
1
1
4
2
2

Part Description
Supplemental Bracket with Hardware

Quantity
1

Description
Passenger Side Supplemental Bracket
Driver Side Supplemental Bracket
T-Bolt Plate
Square Spacer
U-Bolt Plate M10
L-Bolt M10
Passenger Side Jack Shield Bracket
Driver Side Jack Shield Bracket
Hex Flange Lock Nut M10 16mm
Hex Flange Lock Nut M10 17mm (silver)
Washer D10

Page 3 of 10

GST TSB-18-002

August 3, 2018

Running Board Sagging
Repair Procedure
1. If vehicle exhibits condition described in this TSB, please contact your assigned FTS for
further evaluation.
*** If you are a dealer outside of the Gulf States Toyota Region, please call 1-800-444-1074
for assistance.
2. Once FTS has provided next steps, proceed to step 3.
3. Does the vehicle exhibit condition?
a. YES – Proceed to Step 4
b. NO – This TSB does not apply
4. Raise the vehicle on lift and locate the rear attachment points of the running board (Fig.1)
5. Proceed to install the Supplemental Brackets. Steps 6-17 show how to install the
supplemental bracket on RH of vehicle.
6. Remove and discard the rubber plugs indicated on Fig. 2 which are located on the underside
of vehicle.

Rear Attachment Points
F
R
O
N
T
Fig. 1

FRONT
Fig. 2

7. Place a U-bolt plate M10 at the end of the aluminum frame of the running board as shown in
Fig. 3. Rotate the bolt 90 degrees counter-clockwise for attaching to the bracket.

Page 4 of 10

GST TSB-18-002

August 3, 2018

Running Board Sagging
Repair Procedure (cont’d)
8. Place a T-Bolt Plate into the hole exposed in the underside of the vehicle as shown in
Fig. 4. Rotate the T-Bolt Plate to ensure the plate is orientated so the long end is
pointing away from the door of the vehicle as indicated by the outline in the image.

T-Bolt Plate Orientation

Fig. 4

Fig. 3

U-Bolt Plate M10

T-Bolt Plate

9. Slide square spacer over the bolt of the T-Bolt Plate and press firmly against the vehicle.
(Reference Fig. 5)
Square Spacer

Fig. 5

T-Bolt Plate

Square Spacer

Page 5 of 10

GST TSB-18-002

August 3, 2018

Running Board Sagging
Repair Procedure (cont’d)
10. Insert the short end of the silver L-Bolt M10 into the hole of the Jack Shield Bracket as shown
in Fig. 6. Slide the L-Bolt through the hole so that the threaded portion of the bolt is
perpendicular to the surface bracket.

RH side Jack Shield
Bracket with L-Bolt
M10

Fig. 6

Page 7 of 10

GST TSB-18-002

August 3, 2018

Running Board Sagging

Repair Procedure (cont’d)
11. Be sure that the Jack Shield Bracket is oriented such that the small tab is facing outward
towards the door side of the vehicle and the larger flat side is facing the front of the vehicle as
shown. (Reference Fig. 7)

Fig. 7
RH side Jack Shield
Bracket with L-Bolt
M10

12. Insert the angled part of the L-Bolt into the hole as shown. The surface of the Jack Shield
Bracket should rest against the surface of the vehicle. (Reference Fig. 8)

Fig. 8

Page 8 of 10

GST TSB-18-002

August 3, 2018

Running Board Sagging
Repair Procedure (cont’d)
13. Position the supplemental bracket over the bolts. (Reference Fig. 11)
14. Apply a Washer D10 to the center bolt
Nut

and secure using a silver Hex M10 Flange Lock

(17mm) and finger tighten.

15. Apply a Hex M10 Flange Lock Nut

(16mm) to the other two bolts. (Reference Fig. 9)

Fig. 9

16. Check that the supplemental bracket is positioned as far forward towards the front of the
vehicle ensuring a minimum clearance of 14mm between the supplemental bracket and the
trailing arm. (Reference Fig. 10)

Fig. 10

Page 9 of 10

GST TSB-18-002

August 3, 2018

Running Board Sagging

17. Please follow the torque sequence shown in Fig.

1

-

28 ft.* lbs.

2

-

28 ft.*lbs.

3

-

15 ft.*lbs.
1

3

2

Fig. 11

18. Repeat steps 6-17 to install supplemental bracket on LH side of vehicle.

Page 10 of 10