An idea about the activation words of Winter Soldier.
Captain America currently does not have the ability to clear the activation words from the Winter Soldier's mind, but maybe he can try other methods, at least to prevent others from using the activation words to harm Bucky?
In short, it is to change the password to prevent others from opening the lock.
CP is Steve Rogers/Bucky Barnes, or Captain America/Winter Soldier, Captain America/Winter Soldier, Shield Winter, various names.
I used English because I was too lazy to translate the long speech of the captain that was used in the movie, so I simply wrote the entire text in English.
Conception: