ArtWranglerAndy

I am having exactly the same problem with a brand new 2013 450h. I went to dealer service yesterday, and they gave me the same 'song and dance' you got. The fact is, the EV function does not work as advertised. The criteria is: Not too hot, not too cold, not to fast, not too quick, battery mostly charged. I've met that criteria and it still won't function. The usefulness of the function is to be free of emmisions and noise in enclosed parking structures etc. Even if I park the car with a fully charged hybrid battery, and the ambient temp is moderate in the morning, the EV shuts me out when it's time to exit my the garage. I hope lexus attends to this issue and offers a reprograming of the computer so the EV mode can be used as intended.