ABS SYSTEM FAILURE: 2006 TOYOTA 4-RUNNER LIMITED. IN FEB. 2009, I WAS DRIVING ON SLIPPERY ROAD CONDITIONS, THE ABS SYSTEM FAILED, MY BRAKES LOCKED, AND THE CAR SPED UP INSTEAD OF SLOWING. I COULDN'T GET THE CAR TO STOP. INSTEAD OF HITTING THE LINE OF CARS IN FRONT OF ME I VEERED OFF THE ROAD THROUGH A SNOW BANK. THE CAR EVENTUALLY STOPPED AFTER TRAVELING ANOTHER ~100FT THROUGH 8" OF SNOW. THERE WERE NO INJURIES AND NO DAMAGE TO THE VEHICLE (CAR WAS DRIVABLE AFTERWARDS). THE POLICE DID RESPOND AND A TOW TRUCK WAS NEEDED TO TOW MY CAR BACK ONTO THE ROAD. MY ORIGINAL TRAVEL SPEED WAS ~ 40MPH (BEFORE BRAKING). I SPED UP AFTER BRAKING, BUT I AM NOT CERTAIN OF THE SPEED WHEN I HIT THE BANK. TOYOTA RAN A DIAGNOSTIC AND RECEIVED SEVERAL ERRORS. THE ABS WAS NOT WORKING PROPERLY. THEY SAID THE PROBLEM MAY HAVE RELATED TO A LOW BATTERY I HAD 6-12 MONTHS EARLIER. THE LOW BATTERY SOMEHOW DEACTIVATED COMPONENTS OF THE ABS. I HAD NO IDEA THIS WAS EVEN POSSIBLE. IF I WOULD HAVE KNOWN THAT A LOW OR DEAD BATTERY COULD RESULT IN ABS FAILURE I WOULD HAVE HAD THE SYSTEM CHECKED IMMEDIATELY AFTER THE LOW BATTERY INCIDENT. TOYOTA FIXED THE ABS; HOWEVER, I STILL CONTINUE TO HAVE OCCASIONAL PROBLEMS. FOR EXAMPLE, WHEN THE CAR IS AT REST, BUT NOT IN PARK, IT WILL SOMETIMES LUNGE FORWARD (NOTHING LIKE YOU HEAR ABOUT ON TV, BUT THERE IS DEFINITELY SOME TYPE OF POWER SURGE), THERE IS ALSO AN OCCASIONAL BUZZING NOISE FROM THE MASTER CYLINDER AREA WHEN THE BRAKES ARE DEPRESSED (EVEN IN PARK