1999 JEEP GRAND CHEROKEE — SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

WHILE TRAVELING DOWN A MOUNTAIN ROAD, GAINING SPEED, PUT CAR INTO 2ND GEAR IN ORDER TO SLOW DOWN AND NOT OVER-USE THE BRAKES...CAR SUDDENLY BOLTED BACK AND BRAKES LOCKED UP AND BECAME UNRESPONSIVE. I STEERED OUT OF HITTING THE MEDIAN , (IT WAS A WINDY MOUNTAIN ROAD), BUT HIT THE BACK OF A TRACTOR TRAILOR.. I WAS THEN HIT FROM BEHIND BY ANOTHER TRACTOR-TRAILOR AND PROJECTED FOWARED. I WAS ABLE TO MANUEVER OVER TO SHOULDER OF ROAD. PLACED CAR'S TRANSMISSION IN PARK..BUT IT CONTINUED TO MOVE FOWARD !!! I HAD MINOR ACHES AND PAINS, CAR SUSTAINED AT LEAST $9500 WORTH OF COLLISSION DAMAGE. TOLD REPAIR TO CHECK BRAKES AND TRANSMISSION...THEY SAID EVERYTHING OK.. I DID NOT DO ANYTHING UNUSUAL IN THIS DRIVING EXPERIENCE. I AM EXTREMELY FEARFUL OF THE VEHICLE. IT IS STILL IN SHOP WAITING FOR FINAL ESTIMATE. I WANT TO MAKE SURE THE FRAME AND BRAKES AND TRANSMISSION ARE OK BEFORE I CONSIDER USING VEHICLE AGAIN. MY CONFIDENCE IS LOST. CAN JEEP RESPOND AND LET ME KNOW WHY THIS HAPPENED...WILL THEY BUY-BACK ? IT IS ON EXTENDED WARRANTY TIL JANUARY 2003 OR 43,000 MILES. I JUST PURCHASED IN JANUARY OF 2002. I NOW REALIZE MANY JEEPS HAVE MANY PROBLEMS.*AK