Sunroof Drain Hose Replacement Front

1. Remove the parking brake pedal, if replacing the left front hose. Refer to Parking Brake Lever Pedal Assembly Replacement in Park Brake.
2. Remove the acoustical patch.
3. Remove the windshield garnish moldings. Refer to Windshield Pillar Garnish Molding Replacement in Interior Trim.
4. Remove the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.



5. Unclamp the drain hose from the sunroof module.
6. Ensure that the socket fits tightly into the hose.
7. Push the socket until half of the socket is in the old hose.
8. Insert the remaining half of the socket into the new drain hose.
9. Carefully pull the old hose through the A-pillar from the bottom, while feeding the new hose from the top. The socket will keep both pieces of the hose together.

Important: Lubricate each end of the sunroof drain hose with general purpose lubricant GM P/N 12345579 or equivalent.




1. Install the sunroof drain hose in the vehicle.
2. Attach the sunroof drain hose to the sunroof module.

Important: Rotate the clamp 90 degrees in order to ensure clearance when the headliner is installed.

3. Install the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.
4. Install the windshield garnish moldings. Refer to Windshield Pillar Garnish Molding Replacement in Interior Trim.
5. Install the acoustical patch.
6. Install the parking brake pedal, if replacing the left front hose. Refer to Parking Brake Lever Pedal Assembly Replacement in Park Brake.

Sunroof Drain Hose Replacement Rear

1. Remove the rear seat cushion. Refer to Rear Seat Cushion Replacement in Seats.
2. Remove the rear seat back. Refer to Rear Seat Back Replacement in Seats.
3. Remove the upper quarter trim panel. Refer to Rear Quarter Upper Trim Panel Replacement in Interior Trim.
4. Remove the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.



5. Unclamp the sunroof drain hose from the sunroof module.



6. Remove the sunroof drain hose from the C-pillar.
7. Remove the hose from the sunroof drain hose at the base of the C-pillar.
8. Remove the sunroof drain hose from the vehicle.

Important: Lubricate each end of the hose with general purpose lubricant GM P/N 12345579 or equivalent . If a channel is provided in the inner sheet metal for the routing of the drain hose, use tape to secure the hose in this channel.




1. Install the sunroof drain hose to the vehicle.
2. Install the sunroof drain hose to the drain tube at the base of the C-pillar.



3. Install the sunroof drain hose to the C-pillar.

Important: Rotate the clamp 90 degrees in order to ensure clearance when the headliner is installed.

4. Clamp the sunroof drain hose to the sunroof module.
5. Install the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.
6. Install the upper quarter trim panel. Refer to Rear Quarter Upper Trim Panel Replacement in Interior Trim.
7. Install the rear seat back. Refer to Rear Seat Back Replacement in Seats.
8. Install the rear seat cushion. Refer to Rear Seat Cushion Replacement in Seats.