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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

Service Brakes, Hydraulic complaints

106 reports
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Mileage unknown · Aug 20, 2009
Service Brakes, Hydraulic

CONSUMER STATES THAT HIS 2004 WINNEBAGO ITASCA SUNCRUISER HAD BRAKE PROBLEMS. *NJ THE RV IS A 2003 WORKHORSE W22 CHASSIS. THE CONSUMER RECEIVED A RECALL NOTICE IN MAY 2009. A MONTH AFTER PURCHASING THE RV, HE NOTICED THAT AFTER STOPPING AT A TRAFFIC LIGHT IT TOOK MORE GAS TO GET THE MOTORHOME TO MOVE. A SHORT TIME LATER, HE …

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CONSUMER STATES THAT HIS 2004 WINNEBAGO ITASCA SUNCRUISER HAD BRAKE PROBLEMS. *NJ THE RV IS A 2003 WORKHORSE W22 CHASSIS. THE CONSUMER RECEIVED A RECALL NOTICE IN MAY 2009. A MONTH AFTER PURCHASING THE RV, HE NOTICED THAT AFTER STOPPING AT A TRAFFIC LIGHT IT TOOK MORE GAS TO GET THE MOTORHOME TO MOVE. A SHORT TIME LATER, HE COULD SMELL THE BRAKES GETTING HOT. THE CONSUMER PULLED OVER AND DISCOVERED THE LEFT FRONT WHEEL WAS EXTREMELY HOT. IN AUGUST OF 2008 THE CONSUMER FELT THE BRAKES DRAGGING AND GETTING HOT. HE THEN FOUND THE RIGHT REAR BRAKE WAS THE PROBLEM. HE ALLOWED IT TO COOL DOWN AND THEN PROCEEDED ON HIS WAY. THE CONSUMER THEN NOTICED THE ABS LIGHT HAD ILLUMINATED. THE CONSUMER STATED HE TOOK A TRIP THAT WAS LESS THAN 150 MILES AND THE LEFT FRONT CALIPER LOCKED UP. *JB

NHTSA ODI #10281091

Mileage unknown · Aug 18, 2009
Service Brakes, Hydraulic

2003 HOLIDAY RAMBLER HAS A PROBLEM WITH THE BRAKES. *NJ THE CONSUMER HAS A 2003 WORKHORSE W22 CHASSIS. THE BRAKES HAVE FAILED 4 TIMES. THE CALIPERS WERE REPLACED, BUT THE BRAKES AND ROTORS WERE NOT REPLACED. THE BRAKES AND ROTORS OVERHEATED DUE TO THE FAULTY CALIPERS AND THE BRAKE PADS WERE WORN. THE CONSUMER TOOK THE RV TO…

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2003 HOLIDAY RAMBLER HAS A PROBLEM WITH THE BRAKES. *NJ THE CONSUMER HAS A 2003 WORKHORSE W22 CHASSIS. THE BRAKES HAVE FAILED 4 TIMES. THE CALIPERS WERE REPLACED, BUT THE BRAKES AND ROTORS WERE NOT REPLACED. THE BRAKES AND ROTORS OVERHEATED DUE TO THE FAULTY CALIPERS AND THE BRAKE PADS WERE WORN. THE CONSUMER TOOK THE RV TO THE DEALER AND THEY FOUND THE RIGHT REAR SPEED SENSOR OPEN AND BOTH REAR CALIPERS PISTON SEALS HAD MELTED. THEY REPLACED THE REAR CALIPERS, BUT NOT THE FRONT ONES OR THE SPEED SENSORS. THEE CONSUMER ALSO STATED THE PEDAL WOULD GO DOWN TO THE FLOOR AND THE BAS LIGHT ILLUMINATED. THE CONSUMER WAS THEN INFORMED THE BRAKE FLUID WAS CONTAMINATED AND NEEDED TO BE FLUSHED. AFTER 2 YEARS OF COMPLAINING, THE CONSUMER FINALLY RECEIVED A RECALL NOTICE REGARDING THE BRAKES. *JB

NHTSA ODI #10281068

13,980 miles · Jul 23, 2009
Service Brakes, Hydraulic

2004 NEWMAR MOTORHOME WITH W-22 WORKHORSE CHASSIS. 1. I WAS DRIVING IN FRANKFORT, KY, WITH NO HILLS TO SPEAK OF AND ONLY LIGHT BRAKE USAGE. I WAS NOT PULLING A TOWED VEHICLE AND HAVE NEVER PULLED SUCH. 2. LEFT FRONT BRAKE CALIPER LOCKED CAUSING THE WET BEARING SEAL TO LOOSE ALL OIL. WHEEL WAS SO HOT IT WOULD BURN MY HAND WHEN…

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2004 NEWMAR MOTORHOME WITH W-22 WORKHORSE CHASSIS. 1. I WAS DRIVING IN FRANKFORT, KY, WITH NO HILLS TO SPEAK OF AND ONLY LIGHT BRAKE USAGE. I WAS NOT PULLING A TOWED VEHICLE AND HAVE NEVER PULLED SUCH. 2. LEFT FRONT BRAKE CALIPER LOCKED CAUSING THE WET BEARING SEAL TO LOOSE ALL OIL. WHEEL WAS SO HOT IT WOULD BURN MY HAND WHEN I TOUCH IT. HAD NO BRAKES. THERE WAS A DISTINCTIVE BURNT BRAKE PAD SMELL. MOTORHOME TOWED NEXT MORNING TO GEORGETOWN, KY. 3. AFTER TWO WEEKS, LEFT FRONT CALIPER WAS REPLACED AT WORKHORSE'S EXPENSE. I HAD TO PAY FOR BRAKE FLUID AND BLEEDING THE BRAKES. THE CALIPER SLIDE PINS HAD BEEN LUBRICATED ACCORDING TO WORKHORSE'S RECOMMENDATIONS TWO MONTHS PRIOR. *TR

NHTSA ODI #10278105

18,000 miles · Jul 20, 2009
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2003 WORKHORSE W22 CHASSIS. THE CONTACT RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN ID NUMBER 09V110000. HE WAS INFORMED THAT THE PARTS FOR THE REPAIR WERE UNAVAILABLE. WHILE DRIVING 15 MPH, THE BRAKES FAILED WHEN THE BRAKE PEDAL WAS DEPRESSED. THE MANUFACTURER STATED THAT THE VEHICLE COULD NOT BE REPAI…

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TL*THE CONTACT OWNS A 2003 WORKHORSE W22 CHASSIS. THE CONTACT RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN ID NUMBER 09V110000. HE WAS INFORMED THAT THE PARTS FOR THE REPAIR WERE UNAVAILABLE. WHILE DRIVING 15 MPH, THE BRAKES FAILED WHEN THE BRAKE PEDAL WAS DEPRESSED. THE MANUFACTURER STATED THAT THE VEHICLE COULD NOT BE REPAIRED BECAUSE THE RECALL WAS INTERIM. THE FAILURE AND CURRENT MILEAGES WERE 18,000. UPDATED 08/14/09. *LJ THE REAR BRAKES WERE DRAGGING AND BOILING WITH FLUID. UPDATED 08/14/09.*JB

NHTSA ODI #10277437

20,000 miles · Jul 16, 2009
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2003 WORKHORSE W22 CHASSIS. WHILE DRIVING APPROXIMATELY 55 MPH, THE CONTACT NOTICED SMOKE COMING FROM THE VEHICLE. UPON FURTHER INSPECTION, HE NOTICED THAT THE BRAKE DISC AND WHEEL CYLINDERS FAILED. HE REPLACED THE UNIT, BUT SHORTLY AFTERWARDS, THE BRAKING SYSTEM LOCKED WHILE DRIVING. THE DEALER STATED …

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TL*THE CONTACT OWNS A 2003 WORKHORSE W22 CHASSIS. WHILE DRIVING APPROXIMATELY 55 MPH, THE CONTACT NOTICED SMOKE COMING FROM THE VEHICLE. UPON FURTHER INSPECTION, HE NOTICED THAT THE BRAKE DISC AND WHEEL CYLINDERS FAILED. HE REPLACED THE UNIT, BUT SHORTLY AFTERWARDS, THE BRAKING SYSTEM LOCKED WHILE DRIVING. THE DEALER STATED THAT THEY DID NOT HAVE THE PARTS TO REPAIR THE VEHICLE. THE VEHICLE HAS NOT YET BEEN REPAIRED. THE FAILURE MILEAGE WAS 20,000 AND CURRENT MILEAGE WAS 30,000. UPDATED 11/23/09 *BF THE REAR ROTORS WERE BROKEN AND THE RIGHT FRONT HUB SEAL WERE LEAKING. UPDATED 11/24/09

NHTSA ODI #10276960

9,365 miles · Jun 25, 2009
Service Brakes, Hydraulic

BRAKE FAIL. *TR

NHTSA ODI #10274944

24,000 miles · Jun 24, 2009
Service Brakes, Hydraulic

26 MAY 2009 - WHILE DRIVING MY 2004 NATIONAL DOLPHIN (WORKHORSE W-22) MOTORHOME FROM COCOA BEACH, FL TOWARD MY DESTINATION, HOME, I ENCOUNTERED A STRONG PULL OF THE VEHICLE TO THE RIGHT. STOPPING AND MAKING AN INSPECTION OF THE FRONT WHEELS REVEALED THE RIGHT HUB WAS VERY HOT AND A SMELL OF HOT BRAKES. I CAREFULLY MADE MY WAY T…

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26 MAY 2009 - WHILE DRIVING MY 2004 NATIONAL DOLPHIN (WORKHORSE W-22) MOTORHOME FROM COCOA BEACH, FL TOWARD MY DESTINATION, HOME, I ENCOUNTERED A STRONG PULL OF THE VEHICLE TO THE RIGHT. STOPPING AND MAKING AN INSPECTION OF THE FRONT WHEELS REVEALED THE RIGHT HUB WAS VERY HOT AND A SMELL OF HOT BRAKES. I CAREFULLY MADE MY WAY TO THE NEXT CAMPGROUND; THERE I WAS ABLE TO CONTACT AN RV REPAIR SERVICE. WITH THEIR MOBILE SERVICE THEY CAME TO THE CAMPGROUND AND MADE AN INSPECTION. THEIR FINDING REVEALED THAT A CALIPER, BRAKE PADS AND BRAKE LINE HAD GOTTEN VERY HOT AND WAS DAMAGED. THEIR RECOMMENDATION WAS THE REPLACEMENT OF THESE PARTS PLUS THE ABS SENSOR, AND FOR SAFETY, REPLACE THE SAME PARTS TO THE OTHER FRONT WHEEL. I WAS STRANDED AT THIS CAMPGROUND WHILE PARTS WERE ORDERED AND SHIPPED. 29 MAY 2009 - THE RV SERVICE COMPANY MADE THE REPAIRS AT THE CAMPGROUND WITH THEIR MOBILE SERVICE AT A COST OF $1147.40. *TR THE CONSUMER STATED HE RECEIVED A DECEMBER 2009 UPDATED NOTICE REGARDING THE DEFECTIVE BRAKES WHICH STATED A FINAL REMEDY HAD BEEN DETERMINED. HOWEVER, WHEN HE CALLED WORKHORSE CUSTOM CHASSIS TO GET A CURRENT UPDATE, THEY DIDN'T HAVE ONE. UPDATED 03/08/10

NHTSA ODI #10274799

33,758 miles · Jun 20, 2009
Service Brakes, Hydraulic

NOTICED DURING A RECENT TIRE CHANGE THAT 3 OUT OF 4 ROTORS HAD RADIAL CRACKS COMPLETELY THROUGH THE DISK. ONE ON EACH ROTOR AND TWO ON THE RIGHT FRONT. NO CRACKS WERE NOTED ON THE RIGHT REAR. THESE CRACKS ARE ONLY ON THE OUTER DISK. NO OTHER CRACKS WERE FOUND WITH THE EXCEPTION OF LIGHT SURFACE CRACKS ON ALL INNER AND OUTER …

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NOTICED DURING A RECENT TIRE CHANGE THAT 3 OUT OF 4 ROTORS HAD RADIAL CRACKS COMPLETELY THROUGH THE DISK. ONE ON EACH ROTOR AND TWO ON THE RIGHT FRONT. NO CRACKS WERE NOTED ON THE RIGHT REAR. THESE CRACKS ARE ONLY ON THE OUTER DISK. NO OTHER CRACKS WERE FOUND WITH THE EXCEPTION OF LIGHT SURFACE CRACKS ON ALL INNER AND OUTER ROTORS. *TR

NHTSA ODI #10274425

15,200 miles · Jun 1, 2009
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2004 GEORGIE BOY CRUISE MASTER WITH A 2003 WORKHORSE W22. THE CONTACT NOTICED BRAKE FAILURE WITHIN THE CHASSIS. AFTER STOPPING THE VEHICLE REPEATEDLY, THE FRONT CALIPERS WOULD DRAG AND BUILD UP HEAT. THE BRAKE PEDAL SEEMED SPONGY AND WOULD EXTEND ALL THE WAY TO THE FLOOR, BARELY STOPPING THE VEHICLE. TH…

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TL*THE CONTACT OWNS A 2004 GEORGIE BOY CRUISE MASTER WITH A 2003 WORKHORSE W22. THE CONTACT NOTICED BRAKE FAILURE WITHIN THE CHASSIS. AFTER STOPPING THE VEHICLE REPEATEDLY, THE FRONT CALIPERS WOULD DRAG AND BUILD UP HEAT. THE BRAKE PEDAL SEEMED SPONGY AND WOULD EXTEND ALL THE WAY TO THE FLOOR, BARELY STOPPING THE VEHICLE. THE CONTACT RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN ID NUMBER 09V110000, BUT ONLY RECEIVED RECORDED MESSAGES WHEN HE CALLED THE MANUFACTURER. THE CURRENT MILEAGE WAS 15,449 AND FAILURE MILEAGE WAS APPROXIMATELY 15,200.

NHTSA ODI #10272499

30,000 miles · May 27, 2009
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2003 WORKHORSE W22. WHILE DRIVING BETWEEN 45-50 MPH ON NORMAL ROAD CONDITIONS, THE BRAKE PEDAL EXTENDED TO THE FLOOR WITHOUT RESISTANCE WHEN PRESSURE WAS APPLIED. THE BRAKES BEGAN TO LOCK UP WITHOUT WARNING. THE VEHICLE WAS DRIVEN WITH CAUTION AND PARKED FOR AN EXTENDED PERIOD OF TIME. THE FAILURE RECU…

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TL*THE CONTACT OWNS A 2003 WORKHORSE W22. WHILE DRIVING BETWEEN 45-50 MPH ON NORMAL ROAD CONDITIONS, THE BRAKE PEDAL EXTENDED TO THE FLOOR WITHOUT RESISTANCE WHEN PRESSURE WAS APPLIED. THE BRAKES BEGAN TO LOCK UP WITHOUT WARNING. THE VEHICLE WAS DRIVEN WITH CAUTION AND PARKED FOR AN EXTENDED PERIOD OF TIME. THE FAILURE RECURRED ON A SEPARATE OCCASION. THE FAILURE OCCURRED WHENEVER THE VEHICLE WAS IN OPERATION. THE VEHICLE HAS NOT BEEN REPAIRED. NHTSA CAMPAIGN ID NUMBER 09V110000 (SERVICE BRAKES, HYDRAULIC) WAS REFERENCED; HOWEVER, THE REPAIR PART WAS UNAVAILABLE DUE TO A MASSIVE BACK ORDER. THE TECHNICIAN STATED THAT THE PART WOULD BE UNAVAILABLE UNTIL FALL OF 2009. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 30,000 AND THE CURRENT MILEAGE WAS UNKNOWN.

NHTSA ODI #10270093

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.