Headliner or Roof Rattle (Replace Roof Drain Channel with New Design Channel)

Some customers may comment on a rattle in the roof or headliner.

The sunroof drain channel may have insufficient mounting tabs which causes the water channel to disengage from the rear clips.

1. Operate the sunroof glass to the full vent position.




Important: The water channel edges are sharp.

2. From inside of the vehicle, facing rearward, reach up into the sunroof opening with both hands. On the drivers side, using your right hand, push back against the drain channel retaining clip at the top mounting point. Refer to the arrow in the illustration above. At the same time, pull on the rear flange of the drain channel with your left hand. The drain channel should release from the clip.
3. Repeat for passenger side using the opposite hands. After both clips have been released , push the drain channel toward the rear of the vehicle to release the drain channel from the front tabs. Remove the drain channel out through the inside of the vehicle.
4. Install the new design drain channel.
5. Push the drain channel into the opening past the front retaining clips. Place the front flanges of the channel to the front mounting tabs and insert into the tabs. The flanges must be underneath the mounting tabs.
6. Push downward on the drain channel. You should hear two sharp snaps indicating that the rear drain channel retaining clips have been installed.
7. Test the installation by trying to lift the front facing edges. The water channel should not move.

Parts are currently available from GMSPO.

For vehicles repaired under warranty, use: