When I start my car it fires up easily then stops almost immediately, after this it refuses to turn over, even if I turn the key right off and take the key out before making another attempt. What fixes it is locking and unlocking the car, it starts up perfectly once this is done.
If I do the lock/unlock immediately before starting the car the first time it always works.
I always use the remote lock/unlock buttons.
It's a VX series II executive auto.
I'd say its the security system.