Wet Headliner, Seat Belt, Front or Rear Floor/Sunroof Waterleak (Inspect Rear Drains and Correct Routing/Install Extensions)

This bulletin is being revised to update the Parts Information. Please discard Corporate Bulletin Number 06-08-57-004C (Section 08 - Body and Accessories).

Some customers may comment that the headliner, seat belt or the front or rear floor is wet.

The sun roof rear drain hose(s) may have become disconnected from the sunroof module.

1. Partially lower the headliner and inspect the rear sunroof drains for proper routing.

Incorrect Routing





Correct Routing





Important: Do not kink the hose when rerouting. Disconnect the hose from the two retaining clamps and carefully reroute correctly.

2. If either of the rear drain hose have come loose or are routed incorrectly, reroute them correctly. The drain hose should be routed to the outside of the coat hook retainers. Install an extension hose (GMSPO Service Kit P/N 25930220 - one kit has both extensions needed for one vehicle) onto the end of each green rubber coupling (located at the rear of the sun roof module, one per side - two total). Slide the rear drain hose into the other end of the new extension hose and secure the clamps to the drain hose.



3. Clamp the new extension hose by installing a tie strap around the green rubber couplings (both sides - rear).

For vehicles under warranty, use: