IS THERE A WAY TO LOOK INTO THE CHEVROLET IMPALA 2002, 2001, AND 2000 MODELS FOR FAILURE OF THE SECURITY SYSTEM. THE LIGHT COMES ON AT TIMES AND WHEN TAKEN IN FOR SERVICE YOU ARE TOLD THAT THE PROBLEM CAN'T BE FOUND. AFTER THE LIGHT COMES ON, YOU DON'T KNOW WHEN OR IF THE CAR WILL START AND YOU HAVE IT TOWED AND NO PROBLEMS ARE FOUND. I THINK THIS CAN LEAD TO SOME TYPE OF SAFETY PROBLEM IF YOU NEED TO MOVE YOUR CAR IN A HURRY AND IT DON'T START. I'VE TALKED WITH MANY OWNERS OF THE TYPE OF CARS AND THEY ALL HAVE THIS PROBLEM. *NM