Key programming for 2011 Passat

Hey fellas,

I have bought a 2011 second hand Passat.

One of the keys isn’t working, I have replaced the battery but still not working. How can I reprogram the key?

Many thanks.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0