Can security system or bad ground wires cause any of these issues?
This is the procedure I've tried for the key.for the key.
Resynchronization:
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.