Had a similar issue with my 06 GT... actually it happened a few times, the first time I just took the key out, pressed lock 2 times on the remote keyless and then pressed unlock once and it was ok...I have a 06 gtp and went to start it this morning and nothing. All the lights and everything else comes on. I noticed the sercurity light blinks very fast when i try to start the car,even tried the remote start, don't work. Any help would be appreciated.
Another time, this didn't work, so I just unhooked the battery and hooked it back up and it solved the issue. Hope that helps.. by the way, the apparent problem is related to the computer relay under the hood apparently? :beer: