1998 LEXUS ES300 Wheels Problems

I HAVE HAD MY 1998 ES300 IN WITH TOM WOOD LEXUS OF INDIANAPOLIS WELL OVER A DOZEN TIMES SINCE DECEMBER OF 2002 FOR THE SAME PROBLEMS. THE ABS/TRAC OFF AND LOW OIL LEVEL WARNING LIGHTS WENT OFF RANDOMLY. AFTER REPLACING THE ABS PUMP ($1,400 FOR THE PART ALONE), THE PROBLEM PERSISTED. AFTER AN UNACCEPTABLE AMOUNT OF FALSE DIAGNOSTICS, WASTED SERVICE TRIPS (AT LEAST A WEEK LONG EACH TIME) AND USELESS BUT COSTLY REPAIRS, MY CAR IS STILL IN THE SHOP. THEY SUSPECTED THAT A SLUDGE ENGINE IS THE CAUSE OF MY PROBLEMS. BUT IT TURNED OUT THAT I DID NOT HAVE THE SLUDGE PROBLEM. THE LEXUS DEALER ENDED UP FINDING AN ELECTRICAL PROBLEM WITH THE OIL SENSOR SYSTEM. THIS WAS AFTER THEY REPLACED THE ABS/TRACTION CONTROL ACTUATOR PUMP AND THE ABS ECU. IT TOOK THEM 6 MONTHS TO FIND AND FIX ALL OF MY PROBLEMS. IT WAS A VERY EXPENSIVE...

WITHOUT WARNING THE FRONT PASSENGER TIRE FELL OFF THE VEHICLE WHILE DRIVING 20 MPH. THE CONSUMER HAD THE VEHICLE TOWED TO THE DEALERSHIP. PLEASE PROVIDE ANY FURTHER DETAILS. *NLM