T-SB-0021-19

T-SB-0021-19
March 4, 2019
Paint Blistering Due to Corrosion on Lower Door Sill
Service
Category
Vehicle Exterior
Section
Body Structure
Market USA
Applicability
YEAR(S)
MODEL(S)
2016 - 2019
Tacoma
ADDITIONAL INFORMATION
Introduction
Some 2016 – 2019 model year Tacoma vehicles may exhibit corrosion or paint blistering on
the front and/or rear lower door sill(s). 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
DRIVE TYPE
ENGINE
PRODUCTION CHANGE EFFECTIVE VIN
3TMAZ5CN#KM080613
2WD
3TMBZ5DN#KM017695
3TMEZ5CN#KM080603
TMMBC
3TMCZ5AN#KM193397
4WD
2GR
3TMDZ5BN#KM056347
3TMGZ5AN#KM193312
5TFAZ5CN#K X072538
5TFBZ5DN#K X004494
Tacoma
5TFEZ5CN#K X074813
2WD
5TFRZ5CN#K X072541
2TR
TMMTX
5TFRX5GN#K X134021
5TFAX5GN#K X134013
5TFCZ5AN#K X168231
4WD
2GR
5TFSZ5AN#K X168233
5TFDZ5BN#K X039331
5TFGZ5AN#K X168342
2TR
© 2019 Toyota Motor Sales, USA
5TFSX5EN#K X064091
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T-SB-0021-19
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Paint Blistering Due to Corrosion on Lower Door Sill
Warranty Information
OP CODE
DESCRIPTION
TIME
BD1818
Sublet to Body Shop to Repaint Door Sill(s)*,
Apply Clear Tape and Sealer, and Install Door Sill
Protector (if equipped). (One Door)
0.5
Each Additional Door
0.4
Combo A
OFP
T1
T2
61132-040##
61131-040##
61612-040##
61611-040##
69
99
*Use typical body shop sublet type “ZZ Other” for repainting of front and/or rear lower door sill(s).
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
CAB TYPE
C Cab
PART NAME
QTY
58745-04010
Protector, Quarter Panel, FR RH
(Flange Tape for Front Doors)
2
N/A
58745-04020
Protector, Quarter Panel, FR RH
(Flange Tape for Front Doors)
2
N/A
58747-04010
Protector, Quarter Panel, RR RH
(Flange Tape for Rear Doors)
2
PREVIOUS
NEW
N/A
D Cab
PT747-35160-AA
Door Sill Protectors, Front*
PT747-35160-AB
Door Sill Protectors, Rear*
PT747-35161-AA
Door Sill Protectors, Front*
PT747-35161-AB
Door Sill Protectors, Rear*
C Cab
1
D Cab
*Only order replacement door sill protectors if vehicle had them originally.
Required Tools & Equipment
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
Plastic Pry Tool Kit*
00002-06020-01
1
*Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-933-8335.
© 2019 Toyota Motor Sales, USA
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Paint Blistering Due to Corrosion on Lower Door Sill
Required Tools & Equipment (continued)
REQUIRED TOOLS & MATERIAL
QUANTITY
Rubbing Alcohol or Equivalent
1
Shop Rags
1
Masking Tape
1
Ruler (mm)
1
Personal Protective Equipment
1
3M™ Urethane Seam Sealer Gray (P/N 08361) or Equivalent
1
Repair Procedure
1. Confirm the condition exists.
Figure 1.
Is corrosion or paint blistering present on
the surface of ANY lower door sill?
 YES — Proceed to step 2.

1
NO — This bulletin does NOT apply.
Continue diagnosis using the
applicable Repair Manual.
2
Figure 2.
1
Door Scuff Plate
2
Door Sill Protector
Figure 3.
© 2019 Toyota Motor Sales, USA
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Paint Blistering Due to Corrosion on Lower Door Sill
Repair Procedure (continued)
2. Sublet the vehicle to a body shop to repaint the door sill(s).
A. If the vehicle has door sill protectors installed, remove the door sill protectors on the
affected door BEFORE painting. A NEW door sill protector MUST be ordered and installed
AFTER the vehicle has been repainted.
B. If burrs are present on top of the flange, sand down the burrs BEFORE repainting.
C. Repaint the lower door sills following the paint manufacturer’s system specifications.
D. AFTER repainting, continue to step 3.
3. Install the NEW door sill protector (if equipped) by following the accessory
installation instructions.
4. Apply clear flange tape.
A. With the door sill repainted, remove the plastic door scuff plate and kick panel. Remove
the lower half of the door open trim weatherstrip to allow for easier installation.
B. With a clean rag and rubbing alcohol,
remove ANY debris or dirt from the outer,
upper, and inner portions of the lower
door sill flange (upper rocker flange).
On the C Cab, be sure to clean between
the flange and the striker, as shown.
Figure 4.
C. If the door sill protector is installed, align
the clear flange tape flush against the
door sill protector. Be sure NOT to allow
ANY gaps. Do NOT overlap the protector
and the clear flange tape.
© 2019 Toyota Motor Sales, USA
T-SB-0021-19
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Paint Blistering Due to Corrosion on Lower Door Sill
Repair Procedure (continued)
D. If the vehicle is NOT equipped with a
door sill protector, ensure the clear flange
tape is aligned to the flange with the
following procedure:
Figure 5.
(1) With a ruler, measure 6 mm, or ¼ in.,
from the outside of the flange, as the
clear flange tape will cover both the
pinch weld flange and part of the
sill area.
(2) Mark this distance with the flat side of
a small piece of masking tape. Mark
this distance in AT LEAST three
locations along the lower door sill to
help align the clear flange tape.
E. After the paint has dried, lightly apply the
clear flange tape on the outward facing
side of the flange.
Figure 6.
(1) For D Cab front and rear doors,
the tape should be applied to the
flange, starting just AFTER the first
spot weld where the sealer was
applied as shown.
(2) For C Cab, use the same starting
location as the D Cab front door.
F. Whet out (press out air bubbles) the front
side of the flange, starting from the
bottom and working up. Do NOT allow
ANY air bubbles or wrinkles, especially
on the front side of the flange.
Figure 7.
In hard-to-reach areas, place a shop rag
over a plastic pry tool to whet out the
clear flange tape. Be sure NOT to scratch
ANY painted surfaces.
G. Continue to whet out the top and down
the back side of the flange, making sure
NO air bubbles or wrinkles are present.
© 2019 Toyota Motor Sales, USA
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Paint Blistering Due to Corrosion on Lower Door Sill
Repair Procedure (continued)
5. Apply the 3M sealer (P/N 08361) or
equivalent to the specified location (bowl
area) on the lower sill flange as shown.
Figure 8.
NOTE
Ensure the sealer does NOT dry on the visible
portion of the sill AFTER the door open trim
weatherstrip is installed.
Figure 9.
6. Remove the masking tape.
7. Reinstall the door open trim weatherstrip.
8. Reinstall the door scuff plate.
© 2019 Toyota Motor Sales, USA
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