2007-2020 Toyota Tundra Paint Blistering Due to Corrosion on Lower Door Sill T-SB-0030-20


Please see T-SB-0030-20

2007-2020 Toyota Tundra

Some 2007–2020 model year Tundra vehicles may exhibit corrosion or paint blistering on the front and/or rear lower door sill(s). Follow the Repair Procedure in T-SB-0030-20 bulletin to address this condition.

Warranty Information:
Sublet to Body Shop to Repaint Door Sill(s)*, Apply Quarter Panel Protector (Clear Flange Tape), and Install Door Sill Protector (if equipped).

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.
Choose the correct OFP for the vehicle being repaired by searching panels in EPC using EPC VIN filter. Warranty claims must be submitted with correct OFP with 10 digits.

Repair Procedure:
1. Confirm the condition exists. Is there corrosion or paint blistering on the surface of ANY lower door sill?
YES — Proceed to step 2.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.

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. Remove the door open trim weather strip.
C. If burrs are present on the top of the pinch weld flange, sand down the burrs BEFORE repainting.
D. Repaint the lower door sill(s) following the paint manufacturer’s system specifications.
E. AFTER repainting, continue to step 3.

3. Install the NEW door sill protector (if equipped) by using the applicable accessory installation

4. Apply the quarter panel protector (clear flange tape).
A. Remove the plastic door scuff plate and kick panel. Remove the lower half of the door open trim weatherstrip.
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.
C. Center the clear flange tape over the lower door sill flange. Do NOT overlap the door sill protector and the clear flange tape.
(1) For all affected front doors, apply the clear flange tape over the pinch weld flange
(2) For double cab rear doors, align the front of the clear flange tape with the inner flange sheet metal edge

(3) For crew max rear doors, align the front of the clear flange tape with the bend in the flange as shown

D. Wet 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.

E. Continue to install the flange tape to the front, top, and back side of the flange, making sure NO air bubbles or wrinkles are present.

F. Reinstall the door open trim weatherstrip.

G. Reinstall the door scuff plate.