◄ IMPORTANT UPDATE ►
The attached Technical Instructions have been updated. Refer to the details below.
DATE
October 13, 2021
August 18, 2021

TOPIC
Post Organic Growth Remediation Steps (Section VIII.) has been updated.
The following 21TD03 technical instructions steps have been updated:
• Headliner cleaning - materials
• Sealer Application

The most recent update in the attached Technical Instructions will be highlighted with a red box.
Please review this notification with your staff to assure that all relevant personnel have been briefed regarding this subject.
Thank you for your cooperation.

© 2020 Toyota Motor Sales, USA

TECHNICAL INSTRUCTIONS
FOR
LIMITED SERVICE CAMPAIGN 21TD03
CERTAIN 2016 – 2019 Model Year Double Cab Tacoma
CENTER HIGH-MOUNTED STOP LAMP – WATER LEAK

This Limited Service Campaign is available until April 30, 2025.

The repair quality of covered vehicles is extremely important to Toyota. All dealership technicians
performing this repair are required to successfully complete the most current version of the E-Learning
course “Safety Recall and Service Campaign Essentials”. To ensure that all vehicles have the repair
performed correctly; technicians performing this recall repair are required to currently have completed all
of the following courses:
•

T623 - Electrical Circuit Diagnosis

It is the dealership’s responsibility to select technicians with the above certification level or greater to
perform this recall repair. Carefully review your resources, the technician skill level, and ability before
assigning technicians to this repair. It is important to consider technician days off and vacation
schedules to ensure there are properly trained technicians available to perform this repair at all times.

I.

OPERATION FLOW CHART
•
•

Verify Vehicle Eligibility
Confirm vehicle VIN matches the RO
Check for Campaign eligibility using TIS

..Not Covered..

No Further Action Required

..Yes..

Perform an inspection for water intrusion inside the
vehicle.

..Covered..
Is there water staining present along the rear section
of the headliner?
No

Any standing water, organic growth, or other signs of
damage related to center high mount stop lamp leak?

Install center high mount stop lamp repair kit
No
Clean the headliner up the 3 times to remove staining

Yes
Disassemble the vehicle and remove the carpet and
jute padding.

Yes
Was the stain removed?

Are there signs of organic growth?

No

Yes

Remove & Scrap the stained headliner assembly
Use the inspection website to receive approval

Use the inspection website to identify damaged
components and to receive approval.
No

Install new center high mount stop lamp assembly.

Prepare the vehicle per T-SB instructions
Organic growth remediation is performed by vendor
[Serv-Pro]

Install new headliner assembly.
Clean the headliner up the 3 times to remove staining.

Clean removed headliner up to 3 times to remove
staining.

Was the stain removed?
Was the stain removed?

No

No

Remove & Scrap the stained headliner assembly.
Yes
Use the inspection website to receive approval.

Yes

Install new center high mount stop lamp assembly.
Install new headliner assembly.

Scrap the stained headliner assembly.
Use the inspection website to receive approval.
Install new center high mount stop lamp assembly.
Install new headliner assembly.

Install new center high mount stop lamp assembly.
Reinstall cleaned original headliner assembly.
Use the inspection website to identify damaged
components and to receive approval.
Install center high mount stop lamp repair kit (If headliner
and center high mount stop lamp assembly were replaced
above, this step is not applicable)

Campaign Complete Return vehicle to the customer

Reassemble interior [replace any parts as indicated on
inspection report]

2

II. IDENTIFICATION OF AFFECTED VEHICLES
1. CHECK VEHICLE FOR CAMPAIGN ELIGIBILITY
a. Compare the vehicles VIN to the VIN listed on the Repair Order to ensure they match.
b. Check the TIS Vehicle Inquiry System to confirm the VIN is involved in this Campaign, and
that it has not already been completed.
Note: TMNA warranty will not reimburse dealers for repairs completed on vehicles that are
not affected or were previously completed, even by another dealer.

III. PREPARATION
A.

PARTS

If headliner doesn’t need to be removed
Part Number

00948-CHMSL

Part Description
Tacoma Center High Mount
Stop Lamp Repair Kit*

* This kit contains the following parts:
Part Number
Part Description

Quantity
1
Qty

-

Sealer Mask

1

-

Trim Ring

1

-

Sealer Nozzle

1

Part Number
00948-CHMSL-HW

Part Description
Tacoma Center High Mount
Stop Lamp Repair HW*

Illustration

Quantity
1 per 5 vehicles

Only order 1 of the following Repair Kits for every 5
vehicles serviced. The Warranty system will not
reimburse the proper amount for any other ordering
ratio.
* This kit contains the following parts
Part Number

Part Description

Qty

-

3oz Tube of 3M UV4000

1

-

Finishing Tool

1

If headliner needs to be removed only
Part Number
81570-04051

B.

Part Description
Center High Mount Stop Lamp Assembly

MATERIALS
• Protective Tape
• ZEP Foaming Glass Cleaner or
Toyota Genuine Glass Cleaner
• Air Compressor Nozzle
• Standard Hand Tools

Illustration

Quantity
1

•
•

Protective Eyewear
Work Gloves (Nitrile)

•
•

Microfiber Towel
IR Temp Gun
3

IV. BACKGROUND
The Center High-Mounted Stop Lamp on the involved vehicles has a seal between the lamp
and the vehicle body which can deteriorate over time. If the seal deteriorates sufficiently,
water from outside the vehicle could leak into the vehicle cabin through the seal.

4

V.

HEADLINER INSPECTION

1. INSPECT HEADLINER FOR WATER STAINING
a. Visually inspect the rear section (above the rear window) for evidence of water intrusion stains
on the headliner. Water stains will usually be noticeable for discoloration of the visual surface.
Note: If it is dark or hard to inspect, use a work light or flashlight to thoroughly inspect
the rear section of the headliner.
Photo

Example #

Illustration

1

2

...No….

Is there staining present
on the headliner?

Proceed to Section I: INSTALL
CENTER HIGH MOUNT STOP
LAMP REPAIR KIT

..Yes..

Proceed to Section II: INSPECT
FOR WATER INTRUSION &
ORGANIC GROWTH

5

I.

INSTALL CENTER HIGH MOUNT STOP LAMP REPAIR KIT
The quality of sealer and trim ring installation needs to be performed when
operating temperature is 40°F - 100°F (4°C - 38°C). Confirm the temperature of
the vehicles roof meets these requirements using an IR temperature gun.
1. INSTALL SEALER MASK
a. Using Denatured Alcohol or a Wax and Grease
Remover, clean the area around the center stop lamp
assembly.
b. Allow the surface to dry before proceeding.
DO NOT use compressed air for
cleaning as the gasket between the
body and center stop light assembly
may be damaged.
Video: Cleaning the surface

c. Prepare the NEW sealer mask.
d. Hold the edge of the “clear layer” (larger than the other
layers) and separate the “blue and clear layer.”
Note: DO NOT separate the blue layer from white layer.
Video: Applying the Sealer Mask

e. Discard the clear layer shown in the illustration.

f. Apply the sealer mask according to the outer line of the
center stop lamp assembly.
g. Apply pressure all around mask to insure good wet out
of adhesive.

6

h. Remove the blue tape layer while holding the white layer
onto the body.

i. Confirm that there is a gap of approximately 3mm
(0.118in.) equally around the center stop lamp assembly
between the lamp assembly and inner line of the white
tape.

j. Apply masking tape to the groove that separates the two
sections of the center high mount stop lamp. This will
prevent sealer from entering the housing during sealer
application.
Video: Applying Masking Tape

Note: DO NOT apply masking tape over the gap between
the center high mount stop lamp and body. This gap will
be filled with sealer.

2. APPLY SEALER
a. Cut the NEW nozzle diagonally at the 2nd section from its
tip.
Note: Cut the nozzle before installing onto the tube.
b. Install the nozzle onto the tube of the 3M UV4000 sealer.
Note: Do NOT over tighten the nozzle when installing,
the threads will strip.
c. Apply the sealer consistently in a 3mm width around the
center high mount stop lamp to fill the gap between the
lamp assembly and body.
Note: Sheet Metal body temperature should be between
40-100 degrees Fahrenheit or 4-38 degrees Celsius. Allow
cool down or heat up time if required.
Note: Once sealer has been applied to vehicle body, trim
ring must be installed within 20 minutes.

Video: Applying the Sealant

7

d. Using the Finishing Tool from the kit, remove the excess sealer.
Notes for removing the excess sealant:

•
•
•

Tilt the finishing tool towards the direction of movement.
Lightly touch the tip of the finishing tool while advancing
Remove the excess sealer accumulated on the finishing tool in sections
of each 100mm

Video: Removing Excess Sealant

e. Confirm that the sealer is applied well between the
center high mount stop lamp and body without any
gaps or bubbles.
Note: If there are any gaps or bubbles, add enough
sealer to the missing points and push in using the
finishing tool.

f. Remove the sealer mask and masking tape.

8

3. INSTALL TRIM RING
a. Remove the release paper from the trim ring.
Video: Installing the Trim Ring

b. Hold the trim ring as shown in the illustration and
apply it straight onto the vehicle making sure to
center it on the center high mount stop lamp.

c. Using the handle of finishing tool, apply pressure
all around the trim ring to insure the double sided
adhesive tape is completely wet out.
Note: If the ambient temperature is low, use a hair
dryer to warm the trim ring and body surface to ensure
that the ring is properly adhered.

d. Using a shop cloth, clean off any sealer and/or tape
adhesive remaining on the lens surface and trim
ring.

◄ VERIFY REPAIR QUALITY ►
Confirm that vehicle received Center High Mount Stop Lamp Repair Kit and no extra sealer, tape or
adhesive is present on vehicle body.

The campaign is now complete. Return the vehicle to the customer.
Note: DO NOT wash the car for 24 hours after completion of work procedure as washing may
cause damage to the sealer.
A Hangtag has been included in the appendix of the technical instructions. Hangtag should be
placed in the vehicle as a reminder to avoid car washes for 24 hours after completion of the
repair
9

II.

INSPECT FOR WATER INTRUSION AND ORGANIC GROWTH
1. REMOVE FRONT DOOR SCUFF PLATE LH & RH
a. Disengage the 10 claws and 2 guides.

2. REMOVE FRONT COWL SIDE TRIM BOARD LH & RH
a. Remove the clip
b. Disengage the 2 clips and guide.

3. REMOVE REAR DOOR SCUFF PLATE LH & RH
a. Disengage the 9 claws and guide.

10

4. INSPECT FRONT FLOORBOARD LH & RH
a. Lift upward on the carpet to create an air gap above the
Jute padding.
b. Insert your arm between the carpet and jute padding,
feeling for moisture in the jute padding.
c. Using a flashlight, visually inspect for signs of Organic
Growth from previous water intrusion.
Note: You will be able to reach and inspect this area