Water Dripping from A-Pillars or Rear Dome/Reading Lamp (Apply Sealer/Lengthen Drain)

This bulletin is being revised to add additional repair information and Warranty Information. Please discard Corporate Bulletin Number 07-08-57-002D (Section 08 -- Body and Accessories).

Some customers may comment on water dripping/leaking from the rear dome/reading lamp (located just rearward of the fixed glass) or from either " A" pillars.

The above conditions may be caused by any of the following:

1. The stationary glass roof drains may allow too much water for the drain system and thus overflows onto the headliner and into the vehicle.
2. Heat from the roof may cause the right or left middle sunroof drain tubes to shrink and come off at its attaching point on the module.
3. A drain hose may not be fully seated.
4. A drain hose may be improperly routed.
5. There may be a void in the sealer under the roof ditch molding.
6. The end of one of the front drains may be plugged with grease from the sunroof or debris may be caught in the cross hatch at the end of the drain tubes.

For Acadia/Outlook built prior to VIN 7J153734, Enclave built prior to VIN 8J102237, complete Corrections 1 through 4 using the procedures found below.

For Acadia/Outlook/Enclave built prior to VIN 8J166747, complete Corrections 2 through 4 using the procedures found below.

1. Plug stationary sunroof drain holes.
2. Add sunroof drain hose extensions.
3. Check all drain hose connections.
4. Check the drain hose routing between the "B" and "C" pillar for correct routing.
5. Check the roof ditch molding for water leak.
6. Check for plugged sunroof drains drains.

For Vehicles Built After the Above VINs:

Normal water test and diagnosis should be done for water leaks 5 and 6.

1. Lower the headliner following the procedure in SI.




Important: The sunroof fixed rear panel glass has been removed for illustration purposes.

2. Loosen the front sunroof module bolts half way. Remove the sunroof drains. Remove the remaining sunroof module bolts and lower the rear of the sunroof module assembly following procedures in SI.



3. Seal the four holes in the roof sheet metal from inside the vehicle. Refer to the illustration above.
4. Clean the four holes in the roof sheet metal and fill with a small amount of windshield urethane sealant.
5. Reinstall the sunroof module.
6. After the repair, run a second water test for leaks.

Extend both middle drain tubes by adding sunroof drain tube extensions.

1. Lower the headliner following procedures in SI.



2. Add a tube assembly (drain extension) to each middle sunroof drain. Refer to the illustration above.

Important: Make sure there are no dips in the hose after the extension has been added. Refer to the illustration. In some cases it may be necessary to trim off some of the drain tube to eliminate the dip in the drain tubing.




3. The drain hose should be straight with a slight downward angle to the rear of the vehicle.

Check the front and rear sunroof drain hose connections to make sure they are fully seated.

Figure 1





Figure 2




1. After installing the extensions, make sure that the hose is routed in back of the air bag bracket. (Figure 1 is the incorrect routing, Figure 2 shows the correct routing).
2. Also make sure that there are no bends pointing upward in the drain tubes.

Listed below are where the leaks may occur and what they may look like.

Remove the roof ditch molding, clean the affected area and seal the void with KENT High Tech Clear Seam Sealer, 5 oz. tube P/N 10200.

After the repair, run a second water test for leaks.

Most leaks are on the outboard side of the ditch.

Pins holes near at the front.

Rear of the vehicle with pin holes.

Leak point at the rear.

Leak point at the rear.

If the sunroof water trough assembly does not overflow onto the headliner, do not perform the following repair.

1. Pour water into the sunroof trough assembly to verify that the front drains are not plugged.
2. Remove the "A" pillar trim and defroster outlet grille to gain access to the end of the drain tubes.



3. Remove the rubber grommet at the end of the drain tube. Refer to the illustration above.



4. Using a knife, carefully remove the cross hatch inside the grommet and reinstall. Another solution is to utilize a 3/8 in spot weld drill bit to remove the cross hatch. Refer to the illustration above.
5. After the repair, run a second water test for leaks.

Important: Both the windshield urethane and Kent High Tech clear can be used for multiple repairs. Material allowance to be charged per tube used, not per repair.

For vehicles repaired under warranty, use: