Subaru 2003 Impreza - Manual (Page 375)

IMPREZA(NA) A1850BE-A (ENGLISH)
Maintenance and service
11-52
1) Stopper
2. Remove the wiper blade assembly by holding its
pivot area and pushing it in the direction shown by
the arrow while depressing the wiper blade stopper.
1) Metal support
3. Grasp the locked end of the blade rubber as-
sembly and pull it firmly until the stoppers on the
rubber are free of the metal support.