For 1990-2009 cars

### Removal Procedure

1. Gently unclip the rear sill plate plastic retainers.
2. Remove the rear sill plate (3) from the vehicle.
3. Pull the rear door opening weatherstrip (1) loose from the door opening flange (2).
4. Remove the weatherstrip (1) from the vehicle.

### Installation Procedure

1. Apply weatherstrip adhesive GM P/N 12345096, or equivalent, to the rear door opening weatherstrip (1).
2. Press the rear door opening weatherstrip (1) onto the rear door opening flange (2).
3. Install the rear door sill plate (3) to the vehicle. Ensure that the retainers are completely engaged.