My battery went completely dead on 2005 durango, keyless entry has not worked since. Tried second fob and still no luck, also replaced battery in first fob. I heard the key(s) may need to be reprogrammed. How is this done?

 

Usually at the dealer. I know when a CTM fails, the keys need matched to the replacement CTM via the dealers computer. My guess is they will charge you 1/2 an hour labor to take care of it. Thats about $38 here. I do not know of anyone programming their key fobs on their own.

With that said, I am surprised to see a dead battery in the D *or* the FOB caused it to loose the sync/codes.

IndyD