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2003 Workhorse W22

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

77 reports with mileage · 36 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Service Brakes, Hydraulic. Review the 106 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel System, Gasoline. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

1 crash reports8 fire reports0 injury reports

What owners actually said

113 reports
16,000 miles · Aug 13, 2008
Service Brakes, Hydraulic

BRAKES LOCKING UP AND BURNING THE ROTORS ON A 2003 W22 MOTORHOME CHASSIS. *TR

NHTSA ODI #10238092

16,000 miles · Aug 6, 2008
Service Brakes, HydraulicFire

TL*THE CONTACT OWNS A 2003 WORKHORSE CHASSIS W22. WHILE DRIVING APPROXIMATELY 35 MPH, THE FRONT BRAKES LOCKED AND THE BRAKE PEDAL EXTENDED COMPLETELY TO THE FLOOR. AS A RESULT, THE BRAKE UNIT BEGAN OVERHEATING AND THE VEHICLE BEGAN TO SMOKE. THE CONTACT TOOK THE VEHICLE TO THE DEALER, BUT THEY COULD NOT IDENTIFY A SOLUTION OR…

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TL*THE CONTACT OWNS A 2003 WORKHORSE CHASSIS W22. WHILE DRIVING APPROXIMATELY 35 MPH, THE FRONT BRAKES LOCKED AND THE BRAKE PEDAL EXTENDED COMPLETELY TO THE FLOOR. AS A RESULT, THE BRAKE UNIT BEGAN OVERHEATING AND THE VEHICLE BEGAN TO SMOKE. THE CONTACT TOOK THE VEHICLE TO THE DEALER, BUT THEY COULD NOT IDENTIFY A SOLUTION OR PROVIDE A REMEDY. AS OF AUGUST 6, 2008, THE VEHICLE HAS NOT BEEN PROPERLY REPAIRED. THE FAILURE MILEAGE WAS 16,000 AND CURRENT MILEAGE WAS 24,130.

NHTSA ODI #10237192

10,000 miles · Jun 23, 2008
Service Brakes, Hydraulic

BRAKES FAILED COMPLETELY ON MY 2003 SOUTHWIND MOTORHOME (WORKHORSE CHASSIS) WITH ONLY 10.000 MILES. *TR

NHTSA ODI #10232047

29,162 miles · Jun 10, 2008
Service Brakes, Hydraulic

THE FIRST INCIDENT WE WERE ON OUR WAY TO FLORIDA. I WAS DRIVING THE VEHICLE DOWN A STEEP GRADE IN TENNESSEE. I APPLIED THE BRAKES HARDER THAN USUAL AND FELT A RUMBLE IN THE VEHICLE. WHEN I WAS ABLE TO PULL OFF THE HIGHWAY SAFELY, THE RUMBLE WAS GONE. I PROCEEDED TO FLORIDA AND PARKED MY RV FOR 2 WEEKS AND THEN MOVED TO ANOTH…

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THE FIRST INCIDENT WE WERE ON OUR WAY TO FLORIDA. I WAS DRIVING THE VEHICLE DOWN A STEEP GRADE IN TENNESSEE. I APPLIED THE BRAKES HARDER THAN USUAL AND FELT A RUMBLE IN THE VEHICLE. WHEN I WAS ABLE TO PULL OFF THE HIGHWAY SAFELY, THE RUMBLE WAS GONE. I PROCEEDED TO FLORIDA AND PARKED MY RV FOR 2 WEEKS AND THEN MOVED TO ANOTHER RV PARK FOR THE MONTH OF DECEMBER WITHOUT INCIDENT. ON JANUARY 1, 2008 I MOVED THE RV TO ANOTHER RV PARK ABOUT 35 MILES AWAY. WHILE I WAS DRIVING I HAD TO APPLY THE BRAKES HARDER THAN USUAL BECAUSE OF A SIGNAL LIGHT CHANGE. SHORTLY AFTER THAT I SMELLED A HOT SMELL AND FELT THE RUMBLE IN THE BRAKES WHILE BRAKING, AS IN THE FIRST INCIDENT. I PULLED OFF THE ROAD AT A SERVICE STATION TO ASSESS THE PROBLEM AND MY REAR BRAKE WAS SMOKING. AFTER EXAMINING THE BRAKE AREA I DISCOVERED THAT THE BRAKE WAS STUCK IN THE ON POSITION. BY THIS TIME I WAS ONLY ABOUT A MILE FROM THE RV PARK SO I FREED UP THE BRAKES AND LET THEM COOL BEFORE PROCEEDING. THE SERVICE PERSON THAT REPAIRED MY BRAKES STATED THAT THE CALIPERS WERE RUSTED TO THE POINT THAT THEY STUCK WHEN APPLIED HARD. WHILE AT THE RV PARK, ANOTHER RV PULLED IN WITH THE SAME PROBLEM. HE ALSO HAD THE SAME CHASSIS AS I HAVE. SO AFTER RETURNING HOME FOR THE SUMMER I WENT ON TO THE RV.NET SITE AND READ THEIR FORUM REGARDING BRAKE ISSUES AND WAS ASTOUNDED AS TO THE NUMBER OF OWNERS THAT HAD THE SAME ISSUE AS I HAD. I HAVE OWNED MANY RV'S IN MY DAY AND HAVE NEVER EXPERIENCED THIS KIND OF ISSUE. I BELIEVE THAT THERE IS A SAFETY ISSUE REGARDING THE MANUFACTURER. *TR

NHTSA ODI #10230426

20,000 miles · Jun 4, 2008
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2003 WORKHORSE CHASSIS W22. WHILE DRIVING APPROXIMATELY 10 MPH, THE ABS WARNING LIGHT ILLUMINATED ON THE INSTRUMENT CONTROL PANEL AND THE CRUISE CONTROL FAILED. THE CONTACT NOTICED THAT THE CALIPERS IN THE BRAKE SYSTEM OVERHEATED. THE DEALER STATED THAT HIS VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBE…

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TL*THE CONTACT OWNS A 2003 WORKHORSE CHASSIS W22. WHILE DRIVING APPROXIMATELY 10 MPH, THE ABS WARNING LIGHT ILLUMINATED ON THE INSTRUMENT CONTROL PANEL AND THE CRUISE CONTROL FAILED. THE CONTACT NOTICED THAT THE CALIPERS IN THE BRAKE SYSTEM OVERHEATED. THE DEALER STATED THAT HIS VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBER 04V084000 (SERVICE BRAKES, HYDRAULIC). THE CONTACT WOULD HAVE TO PAY $3,000 TO REPAIR THE VEHICLE. THE MANUFACTURER WOULD NOT PROVIDE ASSISTANCE BECAUSE HIS YEAR WAS EXCLUDED FROM THE RECALL. THE FAILURE MILEAGE WAS 20,000 AND CURRENT MILEAGE WAS 23,000. THE PROBLEM WOULD ALSO LEAD TO WHEEL LOCK-UP UPDATED 06/25/08

NHTSA ODI #10229929

20,000 miles · May 22, 2008
Service Brakes, Hydraulic

I HAVE HAD CALIPERS AND PADS REPLACED ONCE BEFORE. AND NOW MY BRAKES ARE SURGING REALLY BAD. *TR

NHTSA ODI #10228698

29,846 miles · May 6, 2008
Service Brakes, Hydraulic

2003 W22 WORKHORSE CHASSIS BRAKE FAILURE ABS SYSTEM DAMAGED DUE TO OVER HEATING OF ROTORS ON ALL FOUR WHEELS. *TR

NHTSA ODI #10226793

18,150 miles · Apr 23, 2008
Service Brakes, Hydraulic

FRONT BRAKES HAVE LOCKED UP TWICE ON THIS WORKHORSE W22 CHASSIS. THE FIRST TIME THEY WERE PATCHED UNDER WARRANTY. HOWEVER, THE CALIPERS WERE NOT REPLACED AND THEY FAILED AGAIN ONE YEAR LATER. WORKHORSE REFUSED TO PAY FOR THE REPAIR EVEN THOUGH THEY KNOW FROM THEIR PAST EXPERIENCE THAT ALL THE CALIPERS THEY USED OVER A PERIOD …

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FRONT BRAKES HAVE LOCKED UP TWICE ON THIS WORKHORSE W22 CHASSIS. THE FIRST TIME THEY WERE PATCHED UNDER WARRANTY. HOWEVER, THE CALIPERS WERE NOT REPLACED AND THEY FAILED AGAIN ONE YEAR LATER. WORKHORSE REFUSED TO PAY FOR THE REPAIR EVEN THOUGH THEY KNOW FROM THEIR PAST EXPERIENCE THAT ALL THE CALIPERS THEY USED OVER A PERIOD OF YEARS ARE BAD. THIS IS A SAFETY HAZARD AND HAD I NOT RECOGNIZED THE PROBLEM AND STOPPED THERE COULD HAVE BEEN A MAJOR FIRE IN THE MOTORHOME IN WHICH MY WIFE AND I WERE RIDING. THEIR FAILURE TO EVEN ACKNOWLEDGE THE PROBLEM, EVEN THOUGH THERE IS A CURRENT NHTSA INVESTIGATION, SEEMS ALMOST CRIMINAL. IS SOMEONE GOING TO HAVE TO DIE BEFORE THEY ARE FORCED TO PAY FOR THEIR MISTAKES. EARLIER IN THE LIFE OF THIS RV THE REAR BRAKES LOCKED UP AND THE PADS DID INDEED CATCH ON FIRE BUT I WAS ABLE TO STOP AND EXTINGUISH THEM BEFORE THE VEHICLE WAS BURNED. I WOULD LIKE FOR WORKHORSE TO ACKNOWLEDGE THEIR PROBLEM AND REPAY ME THE $1,177.37 THAT I HAD TO PAY TO FIX THEIR PROBLEM. *TR

NHTSA ODI #10225459

3,000 miles · Apr 2, 2008
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2003 WORKHORSE W22. THE CONTACT STATED THAT WHEN HE APPLIED THE BRAKES, THEY WOULD DRAG AFTER BEING RELEASED. THE FAILURE OCCURRED WHILE DRIVING 15 MPH. HE ALSO STATED THAT THE BRAKES WOULD SQUEAK AND GRIND AND BECAME WORN DUE TO RELEASING IMPROPERLY. WORKHORSE CONFIRMED THAT THE VIN WAS INCLUDED IN NHT…

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TL*THE CONTACT OWNS A 2003 WORKHORSE W22. THE CONTACT STATED THAT WHEN HE APPLIED THE BRAKES, THEY WOULD DRAG AFTER BEING RELEASED. THE FAILURE OCCURRED WHILE DRIVING 15 MPH. HE ALSO STATED THAT THE BRAKES WOULD SQUEAK AND GRIND AND BECAME WORN DUE TO RELEASING IMPROPERLY. WORKHORSE CONFIRMED THAT THE VIN WAS INCLUDED IN NHTSA CAMPAIGN ID NUMBER 04V084000 (SERVICE BRAKES, HYDRAULIC); HOWEVER, THEY WOULD NOT REPAIR THE VEHICLE. THE PURCHASE DATE, ENGINE SIZE, AND NUMBER OF CYLINDERS WERE UNKNOWN. THE CURRENT MILEAGE WAS 30,000 AND FAILURE MILEAGE WAS 3,000.

NHTSA ODI #10223172

32,000 miles · Mar 27, 2008
Service Brakes, Hydraulic

RAPID (EXCESSIVE) BRAKE PAD WEAR BY 32,000 MILES AND MOSTLY INTERSTATE DRIVING. EVIDENCE OF DRAGGING CALIPER AS SEEN BY THE UNEVEN OUTER PAD WEAR ON ALL FOUR WHEELS. OVERHEATING AND SURFACE CRACKING ON ROTORS. TOO FREQUENT ABS SENSOR REPLACEMENT. INSPECTION AT AUTHORIZED WORKHORSE SERVICE CENTER DISCOVERED ROTORS SEVERELY CRA…

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RAPID (EXCESSIVE) BRAKE PAD WEAR BY 32,000 MILES AND MOSTLY INTERSTATE DRIVING. EVIDENCE OF DRAGGING CALIPER AS SEEN BY THE UNEVEN OUTER PAD WEAR ON ALL FOUR WHEELS. OVERHEATING AND SURFACE CRACKING ON ROTORS. TOO FREQUENT ABS SENSOR REPLACEMENT. INSPECTION AT AUTHORIZED WORKHORSE SERVICE CENTER DISCOVERED ROTORS SEVERELY CRACKED THROUGH. GIVEN TYPE OF DRIVING AND LEVEL OF MOTOR HOME OWNER EXPERIENCE, BRAKE PARTS SHOULD BE EXPECTED TO WEAR EVENLY AND LAST CONSIDERABLY LONGER THEN MILEAGE POSTED ABOVE. GIVEN NUMBER OF INTERNET BASED SIMILAR COMPLAINTS, I BELIEVE ROOT CAUSE OF MALFUNCTION OF BRAKE SYSTEM WAS NOT IDENTIFIED AND ADDRESSED. CALIPERS SHOULD HAVE BEEN REPLACED AND WEREN'T. LOW MILEAGE OR LACK OF USAGE CANNOT BE ARGUED IN THIS CASE , AS WORKHORSE CONTENDS IS A MAJOR FACTOR. *TR

NHTSA ODI #10222484

Official recalls

1

09V110000 · Service Brakes, Hydraulic

Apr 3, 2009

NAVISTAR IS RECALLING CERTAIN MODEL YEAR MY 2001-2008 WORKHORSE W20, W21 AND W22 CHASSIS AND CERTAIN MODEL YEAR 2009 THROUGH 2011 MONACO RV ADMIRAL, ARISTA, MONARCH, AND RIPTIDE RECREATIONAL VEHICLES EQUIPPED WITH AXLES THAT INCLUDE BOSCH ZOPS OR ZOHT PIN SLIDE HYDRAULIC DISC BRAKES. WHEN COMBINED WITH OCCASIONAL OR SEASONAL VEHICLE OPERATION MAY EXPERIENCE CALIPERS STICKING IN THE APPLIED POSITION. THIS CAN RESULT IN ABNORMAL HEAT GENERATION AT THE WHEEL END CAUSING BRAKE DRAG. THE DRIVER WOULD NORMALLY HAVE WARNING OF THE BRAKE DRAG IF UNDETECTED BY THE DRIVER.

Consequence & remedy

Consequence: THE TEMPERATURE INCREASE AT THE WHEEL END CAN EVENTUALLY LEAD TO SOFT PEDAL CONDITIONS DUE TO BRAKE FLUID BOIL, AND POSSIBLE EXTENDED STOPPING DISTANCE INCREASING THE RISK OF A CRASH.

Remedy: WORKHORSE DEALERS WILL REPLACE ALL FOUR BOSCH BRAKE CALIPER ASSEMBLIES FREE OF CHARGE. THE SAFETY RECALL BEGAN ON SEPTEMBER 16, 2010. OWNERS MAY CONTACT WORKHORSE AT 1-877-246-7731.

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

1

EA07016 · Overheating Disc Brake Caliper

Opened Nov 16, 2007 · Closed Aug 19, 2009

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

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Additional source detail variants (7)

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.