Bulletin No.: PIC6628A

Service Bulletin

Date: November, 2025

PRELIMINARY INFORMATION
Subject:
Brand:

Windshield to Dash Valence Foam Seal Mis-positioned
Model:

Model Year:
from

Cadillac

OPTIQ

VIN:
to

2025 - 2026

from
All

Engine:

Transmission:

to
All

All

All

Involved Region or Country

North America, Canada, Mexico, Europe

Condition

Customers may comment that the foam seal at the base of the windshield, will be visible
from either the outside of windshield or from inside the interior when looking at the front
of the instrument panel.

Cause

Foam seal adhesive

Correction
Confirm condition exists, see example below.

7012512

The foam windshield seal will be visible from either the windshield OR from inside the interior when looking at the
front of the instrument panel.
If the reported condition exists, follow the outlined service instructions below.
1. Remove the Valence Panel from the Vehicle, refer to SI for repair instructions.

Copyright 2025 General Motors. All Rights Reserved.

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November, 2025

Bulletin No.: PIC6628A

1.1 Remove the A Pillar Trim and A Pillar extension panel.
1.2 Unbolt and remove the Valence panel.

7012505

2. Remove the foam seal and clean adhesive from surface.
2.1 Apply isopropyl alcohol (90% or better) to surface that will be cleaned.
2.2 Use shop cloth to scrub surface until no adhesive residue is observed.
2.3 Use caution! Any more abrasive or harsh chemicals will remove the paint on this painted part!! Be very careful
not to damage the paint in view of the customer, see image below.
2.4 A heat gun could be used (on a low setting) if the adhesive is not removing easily with alcohol alone. Again, use
caution not to overheat / damage the part.
2.5 Wipe surface dry to remove debris.
2.6 Allow surface to air dry 15 minutes prior to application of new adhesive.

Bulletin No.: PIC6628A

November, 2025

Page 3

7019518

7012507

3. Replace the Foam Seal with WP892. See WPC order form below (P/N 86374257)
3.1 Remove film covering adhesive on back of foam seal.
3.2 Start installation from right (1) to left (2), between the rib and rail located on the edge of the valence panel.
3.3 Apply light pressure by hand to ensure placement, if the seal is placed down and needs to be gently removed
and placed back down correctly it can be done so at this phase.

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November, 2025

Bulletin No.: PIC6628A

7012508

4. The foam should line up evenly on both sides when installed.

7012510

5. Apply Pressure with a roller to activate pressure sensitive adhesive.
5.1 Apply pressure in both directions (left (1) to right (2), and then right (2) to left (1).
5.2 If no special roller is available, a roll of tape can be used to apply even pressure.
5.3 PRESSURE SENSITIVE ADHESIVE! Force and Time Specifications: Hold for at least 5 seconds; with constant
pressure.

Bulletin No.: PIC6628A

November, 2025

Page 5

7012511

6. Perform Visual Inspection
6.1 When finished, perform a visual inspection to ensure the ends of the windshield do not protrude from the
substrate and that it is properly adhered.
7. Replace Valence panel and A Pillar Trim.
7.1 Replace the valence panel, ensuring the tabs are properly seated to the instrument panel under the windshield.
7.2 Replace the A-Pillar Extension panels.
7.3 Replace the A-Pillar Trim.

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November, 2025

Bulletin No.: PIC6628A

4994129

Parts Information
Description

Part Number

Foam seal

WPC892

Qty
1

Warranty Information
For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following
labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information.
Labor
Operation
1080808*

Description

Labor Time

Foam Seal Replacement

0.6 Hrs.

*This is a unique Labor Operation for Bulletin use only.

Version

2

Modified

10/23/2025 - Created On
11/04/2025 - Updated to include repair instructions, labor times and part information.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job
properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.

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