http://www-odi.nhtsa.dot.gov/ivoq/
Please take time to report your failure to NHTSA so something can be done about this growing problem.
This was done over in the Murano forum for the failing ALTs and finally a recall was done for 150,000 Muranos.
So far there have been six 04 Titans and two 05s reported, I know way more have been reported here. Once they recieve so many they will start a investigation and look into it.