I HAD AN ACCIDENT @ 5PM-ENTERING A BUSY ROAD FROM A DRIVEWAY-HIT THE SIDE DOOR OF A CAR RACING LEFTTORIGHT IN FRONT OF ME. MY FAULT OF COURSE. I HEARD NO BEEP WARNING FROM THE SO-CALLED COLLISION MITIGATION SYSEM (?), NOR DID I FEEL ANY BRAKING. SUBSEQUENTLY I TESTED THIS FEATURE IN MY DRIVEWAY WHERE I SLOWLY DROVE THE CAR FORWARD TOWARD MY LARGE GARAGE, I WOULD HAVE HIT THE GARAGE-NO BEEP-NO BRAKING. THEN, IN A SNOW STORM, I HAD TO BRAKE SOASTO NOT HIT A LARGE TRUCK SKIDDING IN FRONT OF ME. I MISSED HITTING HIM BY INCHES. AGAIN, I HEARD NO BEEP AND FELT NO BRAKING. DEALER TESTED THIS FEATURE ON MY CAR BY LETTING IT GO TOWARDS BRUSHES IN A CARWASH, I HEARD BEEP WARNING, BUT AGAIN FELT NO BRAKING. DEALER SAID SYSTEM IS WORKING PROPERLY. AND SO-I CONCLUDE THAT WHENEVER I HEAR ANY KIND OF WARNING BEEO, I SHOULD MANUALLY AND QUICKLY 'HIT THE BRAKES', NO MATTER WHAT. AFTER ALL, I HAVE TO KEEP MY EYES ON THE ROAD FOR GOD'S SAKE. I AM NOT HAPPY.