T-SB-0121-20

T-SB-0121-20
December 14, 2020
Sloshing or Splashing Noise Caused by Water Inside
Doors
Service
Category
Vehicle Exterior
Section
Door/Hatch
Market USA
Applicability
YEAR(S)
MODEL(S)
2019 - 2021
Corolla Hatchback
2020 - 2021
Corolla, Corolla HV
ADDITIONAL INFORMATION
Introduction
Some 2020 – 2021 model year Corolla and Corolla Hybrid vehicles, and some 2019 – 2021 model
year Corolla Hatchback vehicles may exhibit a sloshing or splashing noise when turning at low
speeds or when opening and closing doors. This can be caused by water inside one or more of the
vehicle doors. Follow the Repair Procedure in this bulletin to address this condition.
Production Change Information
This bulletin applies to vehicles produced BEFORE the Production Change Effective VINs
shown below.
MODEL
PLANT
DRIVETRAIN
PRODUCTION CHANGE EFFECTIVE VIN
TMC Takaoka
2ZR-FAE*CVT
JTDEPMAE#MJ139043
TMMMS
M20AFKS*CVT
5YFS4MCE#MP062956
Corolla HV
TMC Takaoka
2ZR-HV*CVT
JTDEAMDE#MJ013476
Corolla Hatchback
TMC Tsutsumi
M20AFKS*CVT
JTNC4MBE#M3110564
Corolla
© 2020 Toyota Motor Sales, USA
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T-SB-0121-20
December 14, 2020
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Sloshing or Splashing Noise Caused by Water Inside Doors
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
BD2005
Remove and Partially Replace Door
Dust Seals
0.5
67837-47060
66
88
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.
Repair Procedure
1. Confirm the condition exists.
Does the vehicle exhibit a sloshing or splashing noise when turning at low speeds or when
opening and closing doors?

YES — Continue to step 2.

NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
2. Remove the dust seals from the bottom of
each door and allow the water to
completely drain.
Figure 1. Dust Seal Location
NOTE
This step should be applied to ALL doors
regardless of which door is holding water.
Figure 2. Dust Seals
© 2020 Toyota Motor Sales, USA
T-SB-0121-20
December 14, 2020
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Sloshing or Splashing Noise Caused by Water Inside Doors
Repair Procedure (continued)
3. Prepare eight of the removed dust seals for reinstallation.
Clean ANY dust, dirt, or debris from eight of the twelve removed dust seals.
NOTE
Four of the removed dust seals will no longer be used.
4. Clean the doors and reinstall the eight dust seals.
A. Once the water has completely drained from each door, wipe the bottom surface of the
doors at each dust seal location to ensure no obstructions are present
for installation.
B. Reinstall two dust seals per door at the
locations indicated.
Figure 3.
1
2
NOTE
 The forwardmost dust seal is no longer
required for the front doors.
 The rearmost dust seal is no longer
required for the rear doors.
3
4
4
1
Front Door
2
Rear Door
3
Dust Seal No Longer Required
4
Install Dust Seal
3
5. Discard the four dust seals that are no longer required and confirm the condition no
longer exists.
© 2020 Toyota Motor Sales, USA