I OWNED A NISSAN XTERRA(02)4WD-I DROVE IT TO THE LASSEN NAT'L VOLCANIC PARK IN RED BLUFF,CA,I WAS ABOUT 300 FT FROM HIGHWAY 36 GOING TO THE PARK. IT WAS KIND OF CHILLY AND THE ROAD HAVE SOME SNOW ON IT. I WAS GOING SLOW ABOUT 13 TO 15 MILES, BECAUSE I'M NOT FAMILIAR WITH THE ROAD, I WAS THINKING I'LL PUT ON FOUR WHEEL DRIVE,BUT I HAVE TO STOP THE CAR AND TRANSFER IT TO 4WD-WHEN I STARTED SLIDING TOWARDS THE MOUNTAINSIDE,SO STEPPED ON THE BRAKES(ABS) BUT I KEPT ON SLIDING, I DID NOT STEER IT TO THE OPPOSITE DIRECTION,I JUST WENT WHERE THE WAS GOING WHICH IS TO THE RIGHT,THE VEHICLE DID NOT STOP. IT HIT THE THE MOUNTAIN SIDE TREES AND SNOW THEN IT ROLLED OVER. MY SON AND ME WERE SHAKEN AND I SMELLED THE GAS SO I TURN THE ENGINE, IT STILL RUNNING. WE GOT OUT OF THE CAR AND I CAN'T BELIEVE THAT WE SURVIVED THE CRASH- WE WERE WEARING OUR SEAT BELTS, WE GOT SOME BRUISE AN D BUMPS IN OUR HEAD,BUT A WEEK LATER I STILL FEEL ACHES AND PAINS-MY COMPLAINTS ARE THAT WHY DID OUR ABS DID NOT WORK AND THE AIRBAS DID NOT DEPLOY? LUCKY ENOUGH THAT WE WERE NOT ON THE SIDE OF THE OF THE DEEP CANYON WHEN IT HAPPENED. I ALWAYS MAINTAINED THAT CAR. *JB