I was looking around the .co.jp site and found this...is this on the 06 HCH? It's a rough translation from Babelfish

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Vehicle speed and control operation of the advancement which controls between the car appropriately, IHCC. In the cruise control which controls speed limit travelling on the highway and the like, vehicle speed of advancement/IHCC which plus does the control operation between the car (intelligent highway cruise control). It accelerates and decelerates appropriately with the information from the radar where the driver when it TURNS ON, provides the switch inside the front grille, it keeps the cars between the distance which responds to travelling speed within setting vehicle speed. When the front running car is not, usual cruise control similar, the running which maintains the speed which is set is possible. * Control operation between vehicle speed/car [ the basic control pattern of IHCC ](conceptual drawing) - Speed limit control: Starting speed limit travelling by setting to desired vehicle speed. - Control of deceleration: When the front running car of our lane is slower than setting vehicle speed, it controls the throttle and the brake, deceleration. When it cannot decelerate with such as emergency brake and interruption of the front running car, alarm operation of the driver (the brake and the like) you urge in indication. - Tracking control: Adjusting to the vehicle speed change of the front running car, way it is between the car which sets following. (As for upper limit of vehicle speed to setting vehicle speed) - Control of acceleration: When the front running car of our lane the lane it modifies, it accelerates leniently to setting vehicle speed, returns to speed limit travelling. 0 radar inspection ranges: Angular 16 degree 0 operation vehicle speed within vehicle front 100m: 45km/h - Between 100km/h 0 car in 3 stages setting possibility IHCC radar section - IHCC is not the device which cancels the danger of front carelessness. Cars control between the distance, car indirectness closely there is a limit in warning and deceleration ability. You do not overestimate IHCC, pay attention to the front running car and circumstance around always, request careful driving. - There are times when you cannot use depending upon road circumstance and weather circumstance. - Please be sure to read the instruction manual before the use.