T-SB-0094-21

T-SB-0094-21
November 23, 2021
Odor Remediation After Water Intrusion
Service
Category
Vehicle Interior
Section
Interior Panels/Trim
Market USA
Applicability
YEAR(S)
MODEL(S)
2005 - 2022
4Runner, Avalon, Avalon
HV, Camry, Camry HV,
Celica, Corolla, Corolla
Hatchback, Corolla HV,
Echo, FJ Cruiser,
Highlander, Highlander HV,
iM, Land Cruiser, Matrix,
MR2 Spyder, Prius, Prius C,
Prius PHV, Prius V, RAV4,
RAV4 EV, RAV4 HV,
Sequoia, Sienna, Sienna
HV, Solara, Tacoma,
Tundra, Venza, Yaris
ADDITIONAL INFORMATION
Introduction
Some 2005 – 2022 model year Toyota vehicles that have undergone water intrusion may exhibit a
condition in which a musty smell is present. Follow the procedures in this bulletin to remediate the
odor and address this condition. The purpose of this service bulletin is to provide general
guidelines and procedures for odor remediation. This service bulletin provides a guide on how to
prepare the interior of the vehicle prior to an odor remediation being performed, as well as contact
information for an approved vendor who will arrange the remediation, and instructions on how to
prepare the interior of the vehicle for reassembly once the remediation has been completed. Refer
to all model and model year specific Repair Manuals and the EPA (Environmental Protection
Agency) website for the most up-to-date safety and precautionary guidelines. This service bulletin
is to provide a general overview and direction for the odor remediation process.
NOTE
 The procedures described in this service bulletin are NOT applicable to vehicles that have
undergone a severe freshwater or saltwater intrusion. Such intrusions could be encountered with
floods, storms, hurricanes, typhoons, or other incidents where the vehicle has been submerged or a
significant volume of water has entered the interior of the vehicle.
 This bulletin is NOT applicable for general HVAC odor concerns. This bulletin has been developed to
address water intrusion-related odors ONLY and should not be used to address HVAC-related
odor concerns.
 BEFORE beginning the procedures provided in this service bulletin, the source of water intrusion
MUST be identified AND repaired in conjunction with odor remediation. This bulletin does NOT apply if
the source of the water leak has not been identified and repaired.
 Follow repair requirements as per Warranty Policies 4.21 and 8.14.
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Odor Remediation After Water Intrusion
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
SUBLET TYPE*****
743991
Identify & Repair Source of Water Leak,
R & R Interior, LASD* Removal,
and Insulator Assembly Replacement
**
***
66
****
EC,
ZZ
*Liquid Applied Sound Deadener.
**For removal of the LASD (Liquid Applied Sound Deadener), time studies have shown the following: Small vehicles and
trucks ~8 – 10 hours and mid to large SUV’s and vans ~10 – 12 hours. Utilize the Electronic Flat Rate Manual as a
guideline to aggregate labor times associated with the removal of the interior, taking into consideration overlapping
labor. Time Punches and additional documentation will be required (see Warranty Policies 4.21 and 8.14).
***The OFP should be the part number of the component that resulted in the water intrusion condition. If the root cause is
NOT due to a specific component that has a part number (e.g., seam seal leak on bulk head), the part number of the
related component should be used.
****Identify the appropriate T2 code.
*****Use sublet type “EC” for Servpro odor remediation services. For repairs subletted to a body shop, use sublet type
“ZZ” (See Warranty Policy 8.22).
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.
 Per Warranty Policy 5.2, only one warranty claim per warrantable condition will be accepted
by Toyota.
Parts Information
PART NUMBER
PART NAME
QTY
58651-22H92
Floor Silencer Sheet (1.5 mm thick sheet) (3.6 ft x 2.6 ft)
As Needed*
58651-22H91
Floor Silencer Sheet (3 mm thick sheet) (3.6 ft x 2.6 ft)
As Needed*
**
High Performance Charcoal Filter
1
***
Insulator Assy., Dash Panel
1
*Depending on the size of the vehicle and area of removed LASD.
**Refer to T-SB-0010-20 HVAC Odor Maintenance for part numbers specific to your vehicle model/model year.
***Refer to the Parts Catalog for part numbers specific to your vehicle model/model year.
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Odor Remediation After Water Intrusion
Required Tools & Equipment
REQUIRED PPE (PERSONAL PROTECTIVE EQUIPMENT)
ADDITIONAL INFORMATION
3M™ (or equivalent) N95 Certified (or higher) NIOSH Approved Respirator
As per EPA Standards*
Safety Goggles/Eye Protection
Protective Gloves
*Refer to EPA guidelines on the U.S. Environmental Protection Agency website.
REQUIRED TOOLS & MATERIAL
PART NUMBER
1" – 2" Flat Bladed Plastic Scraper
Heat Gun
–
QTY.
1
1
3M™ Brushable Seam Sealer
08656
1-qt. Can
3M™ General Trim Adhesive
08088
18.1-oz. Spray Can
Blue Painter’s Tape
–
As Needed
Procedures

Inspection Procedure............................................................................................................... 4

Disassembly Procedure ........................................................................................................... 7

LASD Removal Procedure....................................................................................................... 9

Preparation for SERVPRO™ Remediation Procedure ........................................................... 13

SERVPRO™ Remediation Service Request Procedure ...................................................... 15



SERVPROTM Remediation Process ................................................................................. 15

For Dealer Technician ..................................................................................................... 15

For FTS ........................................................................................................................... 16
Post Remediation Procedures ............................................................................................... 17

Urethane Seam Sealer Application Procedure* ............................................................... 17

Floor Silencer Sheet Installation Procedure ..................................................................... 18
Reassembly Procedure ......................................................................................................... 20
*If applicable.
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Odor Remediation After Water Intrusion
Inspection Procedure
CAUTION
ALWAYS use proper PPE per current EPA guidelines.
1. Prepare the door opening thresholds (e.g., door sills and B and C pillars).
A. Apply two layers of blue painter’s tape to ALL door opening thresholds as shown. This will
help minimize damage to the vehicle’s painted surfaces during removal and reinstallation
of the interior parts.
Figure 1.
2. Remove ALL parts surrounding the source of the water leak to complete a thorough
inspection of the vehicle. Due to the variety of possible water leaks, this process will vary
from vehicle to vehicle. In most cases, these items include but are not limited to:

The right and left front seat assemblies.

The rear seat assembly.

The second and third row seat assemblies (if applicable).

The lower trim panels (e.g., scuff plates, kick panels, pillar garnishes).
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Odor Remediation After Water Intrusion
Inspection Procedure (continued)
3. Complete a thorough inspection of the entire interior floorboard areas to ensure ALL affected
areas are identified.
CAUTION
ALWAYS use proper PPE per current EPA guidelines.
Figure 2. Floorboard Inspection
4. Inspect ALL soft parts for organic matter growth and/or staining that would indicate
water contact.
NOTE
 Soft parts include items that DO HAVE an absorbent quality that will require them to be removed
and replaced with NEW parts if they have come into contact with moisture.
 Keep ALL soft parts that will be replaced away from the parts that will be reused.
Soft parts include:
 Floor mats.
 Carpet/Carpet padding/Jute padding.
 Insulated pads/Styrofoam pads.
 Dash panel insulator assembly (located behind instrument panel/dash pad).
 These parts should NOT be reused and require replacement with NEW parts once the
remediation has been completed.
Figure 3. Example of Soft Parts
Figure 4. Example of Staining/Organic Matter
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Odor Remediation After Water Intrusion
Inspection Procedure (continued)
Figure 5. Examples of Organic Matter Growth Due to Water Intrusion Found During Vehicle Inspection
5. Inspect ALL hard parts that may have been exposed to surfaces that have had direct contact
with water or that have evidence of organic matter growth.
NOTE
Hard parts include items that DO NOT HAVE an absorbent quality and do NOT need to be replaced.
ALL hard parts should be organized together in an accessible location near the vehicle, as they will
be treated together as part of a later cleaning step performed by SERVPRO™. Hard parts include:
 Plastic garnishes/Trim panels (scuff plates, kick panels, center consoles, etc.).
 Plastic ductwork.
6. Inspect the dash panel insulator assembly
along the base of the instrument panel and
floorboard area for ANY signs of water or
organic matter growth. Perform this
inspection on BOTH the driver AND
passenger sides of the vehicle. If ANY sign
of organic matter growth and/or staining
that would indicate water contact has
occurred is found, the dash panel insulator
assembly will need to be replaced.
Figure 6. Driver Side Dash Panel Insulator
Assembly Inspection
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Odor Remediation After Water Intrusion
Disassembly Procedure
Due to the differences in vehicle design and the various water intrusion conditions that may
occur, specific steps for disassembly of the vehicle interior may vary. The purpose of the
Disassembly Procedure in this service bulletin is to provide general disassembly guidelines to
prepare the interior of the vehicle for remediation services.
NOTE
 Vehicles with second and third row seats will require removal of ALL seats in order to properly access
and remove the LASD from the vehicle, as well as ensure the entire vehicle is remediated during the
SERVPRO™ remediation process.
 For hybrid vehicles, the hybrid battery should be removed BEFORE the rest of the disassembly
procedure. Please reference applicable Repair Manual and be sure to follow all recommended safety
precautions for hybrid battery handling.
1. If equipped, remove the cabin air filter
and discard.
Figure 7. Cabin Air Filter
1
NOTICE
 There should NOT be a cabin air filter
installed in the HVAC during the
remediation process.
 A NEW high-performance charcoal
filter should be installed AFTER the
entire remediation process has
been completed.
1
The Cabin Air Filter Should Not Be Installed in
the HVAC During the Remediation Process
2. Remove ALL remaining interior components that cover the LASD located on the floor of the
vehicle. Refer to TIS, applicable model and model year Repair Manual for interior
component removal.
NOTICE
If the dash panel insulator assembly requires replacement, it should be removed and
replaced with a NEW part BEFORE remediation of the vehicle. On most vehicles,
replacement of the dash panel insulator assembly requires removal of the instrument
panel/dash pad assembly and the HVAC ducting. Do NOT attempt to cut out affected areas or
treat the dash panel insulator assembly.
NOTE
In most cases, the door panels and headliner can remain installed in the vehicle UNLESS they show
evidence of water contact.
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Odor Remediation After Water Intrusion
Disassembly Procedure (continued)
3. If the dash panel insulator assembly was found to be affected by water contact during the
initial inspection, remove and replace the dash panel insulator assembly. Refer to TIS,
applicable model and model year Repair Manual for instructions.
Figure 8. Example of a Disassembled Vehicle Ready for LASD Removal
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Odor Remediation After Water Intrusion
LASD Removal Procedure
LASD is a vibration damping coating that is used on the floor of vehicles to reduce road noise. To
maximize the effectiveness of the remediation, LASD removal is required prior to the remediation
process being performed.
CAUTION
 Wear the required PPE (N95 certified respirator, safety goggles, AND protective gloves).
 Ensure the vehicle is in a well-ventilated area, preferably in an area that has good
airflow/circulation and is NOT enclosed.
 Avoid scratching or damaging the sheet metal surfaces, as these areas will need to have NEW
floor silencer sheets applied once the remediation is complete.
 Do NOT use grinders, abrasive discs, or other similar tools to remove the material, as this can
damage the anti-corrosion protection on the sheet metal surfaces.
 Once removed, place all LASD debris in a plastic bag, seal the bag, and dispose of as normal
refuse/garbage per EPA guidelines. (Do NOT use a vacuum to remove debris or old material
left over from the removal process.)
 If equipped, remove the cabin air filter and discard. A NEW high-performance charcoal filter
should be installed once the entire remediation process has been completed. There should
NOT be a cabin air filter installed in the HVAC during the remediation process.
 To minimize the potential for damage to the threshold areas of the vehicle, it will be necessary
to protect those painted surfaces. See step 1 in the Inspection Procedure for more details on
this process.
 Avoid removal of the urethane seam sealer where sheet metal panels join. If the urethane seam
sealer has been removed during the LASD removal process, it will be necessary to reapply as
needed AFTER the remediation process is complete.
Figure 9.
1
2
1
Urethane Seam Sealer
2
LASD
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Odor Remediation After Water Intrusion
LASD Removal Procedure (continued)
The appearance of LASD (color, texture) may vary (smooth vs. rippled) depending on the vehicle
and application method.
Figure 10. Examples of LASD
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Odor Remediation After Water Intrusion
LASD Removal Procedure (continued)
1. Remove ALL LASD from the floor pan of
the vehicle, including the cargo/trunk
compartment, using a flat-bladed plastic
scraper and a heat gun.
Figure 11.
1
NOTE
2
 Using a flat-bladed plastic scraper and a
heat gun is the ONLY approved method
for removing LASD.
 Ensure ALL LASD is removed.
1
Heat Gun
2
Plastic Scraper
A. Select a square area approximately
6 in. by 6 in. and begin heating the
LASD with the heat gun for
approximately 30 seconds.
B. Check the heated sound deadening
material with the plastic scraper to
determine if it is pliable enough
to remove.
Figure 12.
(1) If the material is soft enough to
remove, use the plastic scraper and
remove the selected area.
(2) If the material is still too hard to
remove, use the heat gun for an
additional 30 seconds to see if the
LASD is ready for removal. Keep
track of the length of time
necessary for effective sound
deadening removal and adjust
as needed.
NOTE
Do NOT overheat the LASD.
Heat the LASD just enough for it to
become pliable.
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Odor Remediation After Water Intrusion
LASD Removal Procedure (continued)
C. Continue this procedure until ALL
LASD is removed from the vehicle,
including the cargo/trunk compartment.
2. Once removed, place ALL LASD debris in
a plastic bag and dispose of it as normal
refuse/garbage per EPA guidelines. Use a
whisk broom and dustpan to remove ANY
small debris on the floor of the vehicle.
Figure 13. Example of Vehicle With LASD
Removed Using Plastic Scraper and Heat Gun
Figure 14. LASD Disposal
CAUTION
ALWAYS use proper PPE per current
EPA guidelines.
NOTICE
Do NOT use a vacuum to remove the
debris left over from the
removal process.
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Odor Remediation After Water Intrusion
Preparation for SERVPRO™ Remediation Procedure
Prior to the remediation being performed, the instrument panel/dash pad and HVAC MUST be
reinstalled and the HVAC made operational. If they were removed during the disassembly
process to allow for installation of a NEW dash panel insulator assembly and have NOT been
reinstalled, they must be reinstalled at this time. Reassemble the instrument panel/dash pad and
confirm that the HVAC is operational. Do NOT install the center console or HVAC floor
ducting/ductwork during this procedure. Refer to TIS, applicable model and model year Repair
Manual for instructions.
1. Adjust the climate control settings.
A. Set the HVAC system vents to dash and floor vents. Do NOT set the HVAC system vents
to defrost mode.
B. Set the temperature to the medium setting (ambient temperature).
C. Ensure the controls are NOT set to “Auto.”
2. Prepare ALL seat belts.
A. Pull the seat belt from the retractor until it is fully extended.
B. Hold the seat belt from the point closest
to the retractor and fold over
approximately 12 in. of seat belt back
onto itself as shown.
Figure 15. Seat Belt Folded Back Onto Itself
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Odor Remediation After Water Intrusion
Preparation for SERVPRO™ Remediation Procedure (continued)
C. Continue to fold the seat belt onto itself
until the entire seat belt assembly can
be held in one hand as shown.
Figure 16. Seat Belt Folded Back Onto Itself
D. Using a plastic/rubber-tipped clamp,
place the clamp onto the top of the
folded seat belt so it is secured and
fully extended during the remediation
process as shown. For vehicles
equipped with second or third row
center seat belts that are housed in the
seat assemblies or roof, the same
process of extending, folding, and
clamping the seat belt should
be performed.
Figure 17. Secured Seat Belt
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Odor Remediation After Water Intrusion
Preparation for SERVPRO™ Remediation Procedure (continued)
3. Complete step 2 for ALL the remaining seat belts.
NOTE
It is recommended that the technician photograph the vehicle interior to document the preparation
condition of the interior BEFORE the remediation is performed.
SERVPRO™ Remediation Service Request Procedure
NOTE
 For remediation service requests related to a field action, refer to the applicable Technical Instruction
for directions on how to submit requests.
 Follow the process below if remediation is NOT related to a field action, or the corresponding
Technical Instruction does NOT provide direction.
 Confirm the latest procedure on a current version of this service bulletin, as this process is subject
to change.
SERVPRO™ Remediation Process
Confirm SERVPRO™ personnel are aware of and have agreed to the Toyota Vehicle Odor
Remidation Program – TRAINING & CERTIFICATION GUIDE. Toyota strongly recommends the
Dealership Service Director, and ANY other dealership personnel, review this document to gain
an understanding of the work process completed by SERVPRO™.
For Dealer Technician
To arrange for remediation services to be performed, please create a TAS (Technical Assistance
System) case including justification for the request and confirmation that the source of any water
leak has been identified and resolved. The TAS case will be forwarded to relevant FTS
(Field Technical Specialist) for review.
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Odor Remediation After Water Intrusion
SERVPRO™ Remediation Service Request Procedure (continued)
For FTS
After reviewing the TAS case and confirming the vehicle requires remediation and is fully
prepped, send an email request to TMNAHQ (Toyota Motor North America Headquarters)
at [email protected]. Communication to TMNAHQ should include the following:

VIN (Vehicle Identification Number)

Make

Model

Model year

TAS case

Dealer name

Dealer address

Dealer contact information (Service Manager AND Shop Foreman preferred)

Email

Phone number (cell phone or direct line)
NOTE
 An email to TMNAHQ should NOT be sent until the vehicle has been FULLY prepped and is ready for
the remediation services to be performed.
 If a request to TMNAHQ is submitted and the vehicle preparation has NOT been fully completed, the
dealer/requesting facility is at risk of not being able to have the remediation services performed on the
vehicle at the requested time and being charged with a service-call fee.
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Odor Remediation After Water Intrusion
Post Remediation Procedures
Once the remediation process has been performed by SERVPRO™, follow the steps below to
prepare the floor pan of the vehicle for reassembly of the vehicle interior.
NOTICE
 Post remediation procedures should NOT be initiated until the dealer has received a clearance
report from SERVPRO™ stating that vehicle has been cleared and successfully remediated.
 Post remediation procedures should be performed AFTER the remediation has
been completed.
 Do NOT apply seam sealer or floor silencer sheet to the floor pan BEFORE the remediation
process is performed.
Urethane Seam Sealer Application Procedure
1. Was urethane seam sealer removed during the LASD removal process?

YES — Continue to step 2.

NO — Go to the Floor Silencer Sheet Installation Procedure subsection.
2. Ensure the floor pan has been cleaned properly and is free of any dirt, oil, grease, or
other debris.
3. Apply the urethane seam sealer using a
brush to ALL locations where the urethane
seam sealer was removed during the
LASD removal process.
Figure 18.
4. Allow the seam sealer to dry for a
MINIMUM of 1.5 hours.
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Odor Remediation After Water Intrusion
Post Remediation Procedures (continued)
Floor Silencer Sheet Installation Procedure
The floor silencer sheet will need to be applied in the areas where LASD was removed to restore
the sound deadening function of the removed material. The floor silencer sheet comes in two
different thicknesses (1.5 mm and 3.0 mm). Refer to the applicable Collision Repair Manual or
New Car Features for details on the required thicknesses for specific locations.
NOTE
When the original LASD material exceeds 3 mm in thickness, application of multiple layers of floor
silencer sheets may be necessary to match the original specification found in the Collision Repair Manual
or New Car Features.
1. Draw a rough outline of the area to be covered onto the appropriate thickness of the floor
silencer sheet.
2. Cut the floor silencer sheet slightly larger
than the rough outline drawn using
scissors, a utility knife, or other suitable
cutting device.
Figure 19.
CAUTION
Use caution with ANY type of cutter to
avoid injury.
3. Spray 3M™ General Trim Adhesive to the
back side of the floor silencer sheet and
allow it to air dry for five minutes.
Figure 20.
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Odor Remediation After Water Intrusion
Post Remediation Procedures (continued)
Floor Silencer Sheet Installation Procedure (continued)
4. Place the floor silencer sheet onto the
selected area and press it into position.
Figure 21.
5. Use a heat gun to evenly heat the floor
silencer sheet over the entire surface to a
temperature of 180◦F – 240◦F
(82◦C to 115◦C).
Figure 22.
CAUTION
Use caution and wear proper PPE when
operating a heat gun to avoid burns.
6. Force the floor silencer sheet down into the
floor pan making sure to form it into ALL
the recesses as shown.
Figure 23.
HINT
If available, use a rubber seam roller tool as
this is an effective way to form the floor
silencer sheet into the floor pan.
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Odor Remediation After Water Intrusion
Post Remediation Procedures (continued)
Floor Silencer Sheet Installation Procedure (continued)
7. Trim ANY excess material from the areas where the floor silencer sheet overlaps onto the
painted sheet metal.
8. Continue this process until ALL areas where LASD was removed have been completely
covered with floor silencer sheets.
Figure 24.
Figure 25.
Reassembly Procedure
1. Reassemble the vehicle interior with the treated hard parts and NEW soft parts once
application of the floor silencer sheet has been completed. Refer to TIS, applicable model
and model year Repair Manual for instructions.
2. Install a NEW high-performance charcoal filter in the vehicle AFTER the vehicle interior has
been completely reassembled and proper function of ALL interior systems/parts
(e.g., HVAC, manual and power seat adjustment) have been confirmed.
3. Confirm normal vehicle operation and clear ANY DTCs AFTER reassembly is complete.
© 2021 Toyota Motor Sales, USA