COMPLETE, TOTAL BRAKE FAILURE. THE ONLY WAT TO STOP WAS A LIGHT POLE. AFTERWARDS THE VARKES WORKED AGAIN. CONTACTED BUICK THE ANSWER THERE IS NO WARRANTY LEFT ON THER BRAKE SHOES! BUICK DEALER MUST LOOK AT IT. BUICK DEALER NOTHING WRONG, CAR SENT BACK. I TOOK IT FOR STATE INSPECTION, TOTAL BRAKE FAILURE WHILE INSPECTOR DOES TEST DRIVE. BACK TO BUICK - NO PROBLEMS FOUND THEN AFTER ANOTHER WEEK AT BUICK THE ELECTRICAL SYSTEM FAILS. WE TAKE IR TO AN INDEPENDENT MECH. - THE B DEALER DAMAGED THE COMPUTER SYSTEM, OUR MECH FIXES IT. NO BREAK PROBLEM FOUND, KEEPS TESTING - TOTAL BREAK FAILURE. NOW MORE OFTEN. IN THE END HE FOUND A BOSCH RELAY FULL OF FIRE ANTS. CURRENT: THE RELAY IS REMOVED - NO MORE BREAK FAILURES - NO MORE ABS! BTW THERE ARE A LOT OF FIRE ANTS IN TEXAS. I WILL NEVER BUY ANOTHER GM VEHICLE. THE WAY GM TREATS CUSTOMERS IS INSULTING. PS THE DATE OF ACC MAYBE OFF BUT THERE IS A POLICE REPORT. IT TOOK 6 MONTH TO GET THE PROBLEM FIXED. *AK( DOT NUMBER: TIRE SIZE: 225HR15 )