In 2011, may be the same as newer models: "The motion detect feature of the intrusion alarm can be disabled by depressing the LOCK button of the RKE FOBIK 3 times within 15 seconds during VTA arming, while the security indicator is still flashing rapidly. The ITM provides a single short siren chirp as an audible confirmation that the motion detect disable request has been received. "
"The intrusion alarm is an exclusive feature of the export premium version of the VTA, which is only available in certain markets where it is required."
So some export models have an ultrasonic interior intrusion system that detects motion. Not sure if any changes have been made over the years, but the transmitter and receivers are in the headliner. Unless it was added as a option in recent models, NA WK2s and most others do not have the intrusion sensor or a hood sensor.
There are subtle differences in WK2s built for export, and this is one of them