Water Found in Rear Interior of Cab, Water Leak at Rear Sliding Window – 2019 Chevrolet Silverado & GMC Sierra 1500

Bulletin No.: 18-NA-383
Date: February, 2019


Service Bulletin


TECHNICAL


Subject: Water Found in Rear Interior of Cab, Water Leak at Rear Sliding Window

Brand: Model: Model Year: VIN: Engine: Transmission:
from to from to
Chevrolet Silverado 1500 (New Model) 2019 2019 All All
GMC Sierra 1500 (New Model)

 

Involved Region or Country North America, N.A. Export Regions
Additional Options (RPOs) WINDOW RR-FULL WIDTH, SLIDING, POWER (A48)
Condition Customer may comment on finding water in the rear interior of the cab.
Cause cracks

cracks

cracks

 

Note: The cracks can be in the left and/or right side of the rear sliding window plastic upper rail glass guide which is covered by the roof rear spoiler. Examples of a left (1), then right side (2) visual crack (with the spoiler removed) are shown in the graphics above.

The cause of the condition may be cracking in the rear sliding window plastic upper rail glass guide. The plastic upper rail glass guide may develop small fractures/cracking which allows water to pass through on the glass side of the urethane that attaches to the vehicle body.

Correction Important: When verifying this condition, ensure that the water leak path is due to cracks in the rear sliding window plastic upper rail glass guide, and NOT a leak in the primary urethane seal, between the window and the body.

A leak in the primary urethane seal should be addressed by removing and resealing the window, using the standard service procedure from SI.

R & R the roof rear spoiler and apply seam sealer to the rear sliding window top encapsulate, following the steps in the Service Procedure below.

 

Service Procedure

Lower the rear portion of the headliner

  1. Lower the rear portion of the headliner (1) and remove the roof rear spoiler (2). Refer to Roof Rear Spoiler Replacement, in SI.

Clean and inspect the full length of the cavity above the body to window urethane

  1. Clean and inspect the full length of the cavity above the body to window urethane:

using shop cloths and glass cleaner

 

2.1 First using shop cloths and glass cleaner, or suitable equivalent, clean all grime, debris and water from the cavity.

using compressed air, blow away any excess moisture

2.2 Then, using compressed air, blow away any excess moisture and allow the area to dry thoroughly.

Apply a generous bead of Kent® High-Tech Seam Sealer Clear P10200, or equivalent

Important: Cut the applicator tip to a larger opening and use care to avoid getting the sealer on the upper/ visible surfaces of the glass.

  1. Apply a generous bead of Kent® High-Tech Seam Sealer Clear P10200, or equivalent, across the complete length of the urethane/encapsulate. Allow the sealer to flow to a uniform thickness across the complete top of the window.

Allow a short time for the sealer to develop a skim coat, then reinstall the spoiler and headliner

Note: The graphic above is a top view of the sliding window, while standing in the bed of the truck.

  1. Allow a short time for the sealer to develop a skim coat, then reinstall the spoiler and Refer to Roof Rear Spoiler Replacement, in SI.
  2. Allow at least 24 hours before running the truck through any car wash.

 

Parts Information

Causal Part Description Part Number Material Allowance
N/A Kent® High- Tech Seam Sealer Clear* P10200 $12.25 (U.S.)

$18.39 (Canada)

* We believe this source and their products to be reliable. There may be additional manufacturers of such products/ materials. General Motors does not endorse, indicate any preference for, or assume any responsibility for the products or material from this firm or for any such items that may be available from other sources.

 

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 Description Labor Time
2081088* R & R Roof Rear Spoiler, Apply Seam Sealer to Rear Sliding Window 1.5 hr
*This is a unique Labor Operation for Bulletin use only.

 

Version 2
Modified Released January 03, 2019

Revised February 01, 2019 – Added Important to Correction to Verify Failure.


Bulletin No.: 18-NA-383
Date: February, 2019

https://www.nhtsa.gov/recalls?nhtsaId=10156903

https://static.nhtsa.gov/odi/tsbs/2019/MC-10156903-9999.pdf

Download (PDF, 2.51MB)


 

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Last update on 2019-05-10 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2019-05-10 / Affiliate links / Images from Amazon Product Advertising API

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