ADAPTIVE CRUISE CONTROL AND COLLISION AVOIDANCE DID NOT WORK PROPERLY, AND RESULTED IN A COLLISION. I WAS DRIVING ON A HIGHWAY, RELYING ON THE ADAPTIVE CRUISE CONTROL AND THE AUTOMATIC BRAKING, A FEATURE OF COLLISION AVOIDANCE. THERE WAS A SLOW DOWN IN TRAFFIC, AND ALTHOUGH THE SYSTEM SLOWED DOWN AND APPLIED BRAKE, IT DID SO TOO LATE TO STOP CAR. AS I GOT TOO CLOSE, I APPLIED STEADY PRESSURE ON THE BRAKE, BUT I STILL HIT THE CAR IN FRONT OF ME, WHO THEN HIT THE CAR IN FRONT OF THEM. NO SIGNIFICANT DAMAGE TO EITHER OF THE OTHER CARS, AND MINE HAS MINOR COSMETIC DAMAGE, AND THE ADAPTIVE CRUISE CONTROL IS NOW NOT WORKING PROPERLY. COULD HAVE BEEN SIGNIFICANTLY WORSE. MAKES ME REALLY QUESTION THE POTENTIAL FOR SELF-DRIVING CARS. *TR