AFTER ENABLING THE STEERING ASSIST, LAST YEAR, WE NOTICED IT PULLING MORE AGGRESSIVELY THAN IT DID WHEN WE FIRST PURCHASED THE VEHICLE. WE DISABLED THE FEATURE FOR SEVERAL MONTHS THEN ENABLED IT AGAIN THIS WEEK. TODAY, WHILE MY WIFE AND FRIEND WERE DRIVING THE STEERING/LANE ASSIST PULLED THE WHEEL AGGRESSIVELY TOWARD THE OUTSIDE LANE, CAUSING THE CAR TO HYDROPLANE. LUCKILY MY WIFE WAS ABLE, AFTER THE CAR SPUN AROUND 360 DEGREES SEVERAL TIMES, TO CORRECT ENOUGH TO STAY OUT OF ONCOMING TRAFFIC AND ENDED SIDEWAYS OFF THE HIGHWAY, SHAKEN UP BUT NO MAJOR INJURIES. THE VEHICLE IS BEING TOWED TO THE NEAREST GENESIS DEALER.