Chrysler Crossfire switchblade remote key starts the engine but the remote doesn't work.
The switchblade remote key can lose it's synchronization if the buttons are pressed too many times when not in range of the vehicle. If this happens the solution is to simply resynchronize.
Insert key into ignition. Don't turn it.
Press the lock button on the switchblade remote key twice in 2 seconds.
Turn the key to ON or RUN within 30 seconds.
Take the key out. Exit vehicle and have the doors closed. Test the remote.