I HAVE A 2000 CORVETTE AND THE STEERING COLUMN LOCKED-UP WHILE DRIVING. THE STEERING WHEEL WILL NOT TURN, AND THE DISPLAY ASKS TO "SERVICE COLUMN LOCK". AFTER 7 HOURS, I STILL HAVEN'T FOUND A CHEVY DEALER THAT SAYS THEY CAN HELP. IF THAT HAD HAPPENED A FEW MINUTES BEFORE WHEN I WAS ON THE INTERSTATE, I COULD HAVE BEEN KILLED. THIS IS A SERIOUS PROBLEM, AND I'VE GOTTEN NOWHERE ON GETTING THE CAR FIXED.*AK