2010 Cadillac Truck Escalade EXT AWD V8-6.2L Technical Service Bulletin # 08-08-57-007C Date: 110406

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Technical Service Bulletin # 08-08-57-007C Date: 110406

Body - Mid Gate Water Leak/Carpet Wet/Mildew Odor

TECHNICAL

Bulletin No.: 08-08-57-007C

Date: April 06, 2011

Subject: Midgate Water Leak (Align and Adjust Midgate Components)

Models:

2006-2012 Cadillac Escalade EXT

2006-2012 Chevrolet Avalanche

Supercede:

This bulletin is being revised to add the 2012 model year. Please discard Corporate Bulletin Number 08-08-57-007B (Section 08 - Body and

Accessories).

Condition

Some customers may comment on the following concerns:

- The carpet is wet in the rear area of the vehicle.

- There is condensation on the windshield or side glass.

- There is a damp or mildew odor in the vehicle.

Cause

Important

Some vehicles may have been revised at the factory with the use of ribbon sealer in the area where the top bed rail seal joins the rear

window opening seal. It is important to maintain this revision during the repair procedures. If the revision material needs to be added to or

replaced use a 9.5 mm Butyl Ribbon Sealer, such as 3M P/N 08612 or equivalent. Refer to the opposite side of the repair vehicle to

illustrate how the sealer is applied.

- Insufficient seal pressure between the upper midgate glass panel and the body opening weatherstrip.

- Incorrect alignment of the midgate to the body.

- Insufficient seal pressure between the tonneau or cargo cover and the midgate cross bar.

Water Test Procedure

1. Assure that the midgate cross bar is completely closed. Inspect the latches on both sides.

2. Assure that the arrow on the mid glass is aligned with the arrow on the cross bar.

3. Verify that the interior trim is not putting pressure on or overlapping the upper weatherstrip, causing a poor seal.

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4. Ensure that the weatherstrip mucket (bat wing) is glued to the weatherstrip (1).

5. If the mucket is not glued as shown, use the following glue procedure.

- Remove the weatherstrip as required to access this revision.

- Sand the weatherstrip in the bulb and wing area from the push pin zone to the edge of the bat wing (1).

- Clean the surfaces per the adhesive manufacturer's instructions.

- Glue the area as shown using GM Instant Gel Adhesive P/N 12345632 (in Canada, P/N 10953475) or equivalent (1).

- Reinstall the weatherstrip. Ensure that the revised weatherstrip appears as shown above (1).

6. Refer to Waterleak Test Preparation in SI to determine the source of the leak.

Correction

From the listed repair procedures, determine the steps that will correct the condition on the tested vehicle.

1. If the water is coming in around the window area, use the following procedure.

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1. Move the midgate striker rearward in the vehicle approximately 2 mm (1).

2. Close the midgate and check the closing effort with the latch repositioned.

3. Adjust the striker position to balance the closing effort and for adequate seal compression.

2. If the first procedure does not completely resolve the leak, use the following procedure.

1. Remove the interior trim. Refer to Rear Upper Garnish Molding Replacement in SI.

2. Partially remove the upper window weatherstrip. Begin at the center joint and pull the weatherstrip down to the weatherstrip push pin (1).

3. Using duck bill vise grips, bend the flange toward the inside of the vehicle. Start the procedure at the midgate upper glass latch area and

work outward and down to the weatherstrip push pin (1).

4. Reinstall the weatherstrip and ensure that the weatherstrip is fully seated on the flange.

5. After the weatherstrip is reinstalled, crimp the full length of the weatherstrip with the duck bill vise grips to ensure a weather tight seal

(1).

3. If the seal is still not adequate, use the following procedure to adjust the tonneau or cargo cover.

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1. Remove the tonneau or cargo cover panels. Move the number one tonneau or cargo cover mount 3 mm forward on the water leak side (1).

2. Install the tonneau or cargo cover panels and inspect for proper fit. All of the tonneau or cargo cover panels may need to be re aligned

after the number one panel repositioning.

4. Refer to Waterleak Test Preparation in SI to determine that the source of the leak has been properly diagnosed and corrected.

Warranty Information

For vehicles repaired under warranty, use the table.