ON CERTAIN SCHOOL AND TRANSIT BUSES BUILT WITH BOSCH ZERO OFFSET PIN SLIDE (ZOPS) HYDRAULIC DISC BRAKES, THE ZOPS HYDRAULIC DISC BRAKES MAY EXPERIENCE CALIPERS STICKING IN THE APPLIED POSITION, WHICH CAN RESULT IN EXCESSIVE OR ABNORMAL HEAT GENERATION AT ONE OR MORE OF THE BRAKES.

Consequence & remedy

Consequence: THE COMBINATION OF THE FOLLOWING FACTORS MAY COLLECTIVELY RESULT IN AN UNREASONABLE RISK TO MOTOR VEHICLE SAFETY: POTENTIAL FIRE AT A WHEEL END, HIGH INCIDENT RATES OF STUCK CALIPERS, AND EVACUATION AND CONTAINMENT CONCERNS RELATING TO MULTIPLE PASSENGERS.

Remedy: INTERNATIONAL WILL NOTIFY ITS CUSTOMERS AND REPAIR THE BUSES FREE OF CHARGE. THE RECALL BEGAN OCTOBER 29, 2004.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

EA02034 · Overheating Front And Rear Brakes

Opened Dec 3, 2002 · Closed Feb 10, 2004

Status: closed (inferred from source dates) · Service Brakes, Hydraulic

THIS INVESTIGATION FOCUSED ON INTERNATIONAL MEDIUM DUTY TRUCKSAND SCHOOL BUS CHASSIS WEIGHING UP TO 33,000 POUNDS, EQUIPPED WITH HYDRAULIC BRAKES AND BUILT WITH THE BOSCH ZERO OFFSET PIN SLIDE (ZOPS)BRAKE SYSTEM CALIPERS.INTERNATIONAL USED THE ZOPS CALIPERS FROM APRIL 1997 THROUGH JUNE 2002.ODI WAS CONCERNED ABOUT REPORTS OF THE BRAKE CALIPERS STICKING IN THE APPLIED POSITION, RESULTING IN EXCESSIVE HEAT.AS THE INVESTIGATION PROGRESSED, ODI BECAME AWARE OF WHEEL END FIRES, SOME OF WHICH OCCURRED ON SCHOOL BUSES.DURING THE INVESTIGATION ODI OBTAINED WARRANTY DATA WHICH WAS SORTED AND ANALYZED BY VRTC TEST ENGINEERS AND ODI TO GAIN AN UNDERSTANDING OF THE MAGNITUDE OF THE PROBLEM.AFTER A THOROUGH WARRANTY DATA ANALYSIS, RELATED TESTING AND DOCUMENT REVIEWS, ODI MET WITH INTERNATIONAL, SHARED THE DATA ANALYSIS AND SHORTLY AFTERWARDS, INTERNATIONAL AGREED TO A SAFETY RECALL.FURTHER DETAILS ARE INCLUDED ON PAGES 2 - 4.