T-SB-0055-24

June 21, 2024

Odor Remediation Process (Dealer Performed)
Service
Category

Vehicle Exterior

Section

Body Structure

Market USA

Applicability
YEAR(S)

MODEL(S)

2005 - 2024

4Runner, 86, Avalon, Avalon
HV, bZ4X, C-HR, Camry,
Camry HV, Celica, Corolla,
Corolla Cross, Corolla Cross
HV, Corolla Hatchback,
Corolla HV, Crown, Echo, FJ
Cruiser, GR Corolla, Grand
Highlander, Grand
Highlander HV, Highlander,
Highlander HV, iA, iM, Land
Cruiser, Matrix, Mirai, MR2
Spyder, Prius, Prius C, Prius
PHV, Prius Prime, Prius V,
RAV4, RAV4 EV, RAV4 HV,
RAV4 Prime, Sequoia,
Sequoia HV, Sienna, Sienna
HV, Sienna HV MaaS
Package, Solara, Supra,
Tacoma, Tacoma HV,
Tundra, Tundra HV, Venza,
Venza HV, Yaris, Yaris SD
MEX-Prod

ADDITIONAL INFORMATION

Introduction

Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in
which a musty odor 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 and
treat the interior of the vehicle for odor remediation. Refer to the applicable model and model year
Repair Manual 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.

© 2024 Toyota Motor Sales, USA

Page 1 of 9

T-SB-0055-24

June 21, 2024

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Odor Remediation Process (Dealer Performed)
Introduction (continued)
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.

Warranty Information
OP CODE

DESCRIPTION

TIME

OFP

T1

T2

SUBLET TYPE****

743991

Odor Remediation
(Dealer Performed)

*

**

66

***

ZZ

*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.
**** For repairs sublet 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.

Parts Information
PART NUMBER

PART NAME

QTY

*

High Performance Charcoal Filter

1

*

Insulator Assy., Dash Panel

1

*Refer to the Parts Catalog for part numbers specific to your vehicle model/model year.

© 2024 Toyota Motor Sales, USA

T-SB-0055-24

June 21, 2024

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Odor Remediation Process (Dealer Performed)
Required Tools & Equipment
REQUIRED PERSONAL PROTECTIVE EQUIPMENT (PPE)

3M™

ADDITIONAL INFORMATION

(or equivalent) N95 Certified (or higher) NIOSH
Approved Respirator
As per EPA Standards*

Safety Goggles/Eye Protection
Protective Gloves
*Search for EPA guidelines for mold remediation PPE.
REQUIRED TOOLS & MATERIAL

PART NUMBER

QTY

3M™ Quat Disinfectant Cleaner Concentrate 5

1

Heavy Duty Cleaner (Like Spray Nine or Similar)

1
–

Pump Spray Bottle

1

Scrub Brush

1

Painter’s Tape

1

Ozone Machine (or Equivalent)

RBO5210II

1

NOTE
An ozone machine and PPE may be ordered by visiting the Approved Dealer Equipment (ADE) website at
Home – Service Resources – Approved Dealer Equipment Website or by calling 1-800-368-6787.

Procedures



Inspection Procedure .................................................................................................................. 4



Disassembly Procedure .............................................................................................................. 7



Cleaning Procedure .................................................................................................................... 8



Clearance Test (Optional) ........................................................................................................... 9



Reassembly Procedures............................................................................................................. 9



Ozone Machine .......................................................................................................................... 9

© 2024 Toyota Motor Sales, USA

T-SB-0055-24

June 21, 2024

Page 4 of 9

Odor Remediation Process (Dealer Performed)
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).
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).

© 2024 Toyota Motor Sales, USA

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June 21, 2024

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Odor Remediation Process (Dealer Performed)
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.

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 need to be replaced away from ANY 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 MUST be replaced with NEW parts once the remediation
has been completed.
Figure 2. Example of Soft Parts

Figure 3. Example of Staining/Organic Matter

Figure 4. Examples of Organic Matter Growth due to Water Intrusion Found During Vehicle Inspection

© 2024 Toyota Motor Sales, USA

T-SB-0055-24

June 21, 2024

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Odor Remediation Process (Dealer Performed)
Inspection Procedure (continued)

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. 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 must be replaced.

Figure 5. Driver Side Dash Panel Insulator
Assembly Inspection

© 2024 Toyota Motor Sales, USA

T-SB-0055-24

June 21, 2024

Page 7 of 9

Odor Remediation Process (Dealer Performed)
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 odor remediation services.
NOTE
Be sure to remove HV or EV batteries prior to servicing or cleaning the area where these are present or
exposed. Refer to TIS, applicable model and model year Repair Manual and follow ALL recommended
safety procedures for HV and EV battery handling.

1. If equipped, remove the cabin air filter
and discard.

Figure 6. Cabin Air Filter

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.

2. Remove ALL the remaining interior components that cover the affected area on the floor of
the vehicle. Refer to TIS, applicable model and model year Repair Manual for interior
component removal.
NOTE
If organic growth is present only in the trunk, remove ONLY the trunk interior components. If organic
growth is present only in the cabin, remove ONLY the cabin interior components. If it is present in
both the trunk and cabin, remove interior components from BOTH the trunk and cabin.

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.

© 2024 Toyota Motor Sales, USA

T-SB-0055-24

June 21, 2024

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Odor Remediation Process (Dealer Performed)
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 7. Example of a Disassembled Vehicle Ready for Cleaning Procedure

Cleaning Procedure

1. Remove any loose debris from the floor pan.
2. Spray and Scrub: Using a heavy-duty cleaner (like Spray Nine, or a similar product), spray the
floor pan and any other affected components that will NOT be replaced. Scrub area to remove
staining. Repeat as needed on any stubborn areas.
3. Spray and Soak: Using 3M™ Quat Disinfectant product, spray the floor pan and any other
affected components that will NOT be replaced. Floor pan should be visibly wet for at least 10
minutes to ensure proper amount of disinfectant has been used. Let disinfectant soak for at
least 30 minutes.
NOTE
Remember to dilute the 3M™ Quat Disinfectant as instructed in the container.

© 2024 Toyota Motor Sales, USA

T-SB-0055-24

June 21, 2024

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Odor Remediation Process (Dealer Performed)
Cleaning Procedure (continued)

4. After 30 minutes of allowing the disinfectant to soak, wipe the vehicle dry ensuring all
moisture has been removed.

Clearance Test (Optional)

A clearance test is NOT required, but if the dealer or customer would like to have a clearance
test complete, consider the following options:




Inspector Lab (recommended):


Create an account: https://inspectorlab.com/



Purchase Sample Tape: https://shop.discoverbreeze.com/products/breeze-e_tapesurface-sampling-tape



Print out and complete a Chain of Custody document from the priority lab account to ship
with the sample kit.

Mold Inspection Network: https://www.amazon.com/Testing-Analysis-Expert-Consultationincluded/dp/B016YSY8XQ

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.

Ozone Machine

1. After vehicle has been reassembled, turn the A/C ON in recirculation mode.
2. Run the ozone machine for 1 hour.
3. After the ozone machine has run for 1 hour, turn the machine OFF and allow the vehicle to

air out for 2 hours.

© 2024 Toyota Motor Sales, USA