Historically, Chryslers and Jeeps have always had a bad interlock system. Just crack open the steering wheel collar and use a screw driver to start the engine.
Alarm systems were really needed in urban areas (or the "club").
Ok, now the interlock system is completely redesigned. A chip in the key is required to start the engine. If a bogus key is used, the engine will start for 2 seconds and then shutdown for 20 minutes.
I assume that to gain entry, the alarm system is now blaring. And now the engine is disabled.
OK, so that is what is "stated" will happen.
So, is there any "real world" experiences on the alarm/security/engine cutoff system works. I assume it will take a while for the thieves to figure out either they can't steal the car (easily) or how to steal it, quickly.
My old Jeep never had any problem. The after market alarm system, with the blinking light, sent any theives to other cars. (I'm only talking about teenager theives. Not the professionals.)