Service Brakes, Hydraulic. Review the 74 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Service Brakes. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
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NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports3 fire reports0 injury reports

Service Brakes, Air complaints

3 reports

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60,000 miles · Sep 28, 2022

Service BrakesService Brakes, Air

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The contact owns a 2004 Workhorse W22 RV. The contact stated while driving approximately 60 MPH, the brakes heated up and seized. The contact stated that the ABS warning light was illuminated. The contact pulled over and smelled a burning odor. The contact stated that he waited for over one hour for the brakes to cool and then he continued driving to his destination. The contact stated that the failure became constant and he no longer took the RV on long trips. The contact had taken the RV to an independent mechanic where it was diagnosed and determined that the calipers, pistons, sensors, and rotors needed to be replaced. The RV had been repaired; however, the failure reoccurred. The manufacturer had not been informed of the failure. The failure mileage was approximately 60,000.

NHTSA ODI #11486858

12,000 miles · Mar 26, 2013

Service BrakesService Brakes, Air

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TL* THE CONTACT OWNS A 2004 GEORGI BOY CRUSE MASTER RV EQUIPPED WITH A 2004 WORKHORSE W22 CHASSIS. THE CONTACT WAS DRIVING APPROXIMATELY 55 MPH WHEN THE BRAKE PEDAL WAS ENGAGED AND THE VEHICLE FAILED TO DECELERATE. THE CONTACT WAS ABLE TO REDUCE SPEED AFTER APPLYING THE BRAKES REPEATEDLY AND TO A COMPLETE STOP. AFTER THIRTY MINUTES THE VEHICLE RESUMED NORMALLY. THE VEHICLE WAS PREVIOUSLY REPAIRED UNDER A NHTSA CAMPAIGN ID NUMBER: 09V193000 (SERVICE BRAKES, HYDRAULIC). THE FAILURE RECENTLY RECURRED AND THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 12,000...UPDATED 05/16/13 *BF THE CONSUMER STATED THE BREAKS AND ROTORS SHOULD HAVE BEEN CHANGED. THEY WERE WARPED FROM THE EXCESSIVE HEAT CAUSED BY CALIPERS HANGING UP. UPDATED 05/23/2013 *JS

NHTSA ODI #10504526

24,127 miles · Nov 10, 2010

Service Brakes, Air

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TL*THE CONTACT OWNS A 2004 FLEETWOOD SOUTHLAND MOTOR HOME WITH A 2004 WORKHORSE W22 CHASSIS. RECALL NHTSA#09V198000; SERVICE BRAKES, AIR WHICH WAS RELATED TO THE CALIPERS THAT WERE CRACKED, OVER HEATING AND STICKING. THE FAILURE ALSO CAUSED THE ROTORS TO CRACK WHICH RENDERED THE VEHICLE UNDRIVABLE. AFTER THE DEALER REPLACED THE CALIPERS THEY FOUND ADDITIONAL DAMAGE ON THE ROTORS. THE CONTACT WAS BILLED DOUBLE TO REPAIR THE ADDITIONAL BRAKE DAMAGE WHICH SHOULD BE A PART OF THE RECALL. THE MANUFACTURER WAS CONTACTED AND STATED THAT THEY WOULD NOT REPLACE THE ROTORS BECAUSE THEY WERE NOT COVERED BY THE WARRANTY. THE CONTACT WAS RESPONSIBLE FOR THE REPAIR COST. THE FAILURE MILEAGE WAS 24,127.

NHTSA ODI #10365257

Official recalls

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.

06V225000 · Engine And Engine Cooling

Jun 20, 2006

ON CERTAIN MOTOR HOME AND TRUCK CHASSIS EQUIPPED WITH GENERAL MOTORS 8.1L V8 ENGINES, IMPROPER HARDENING DURING THE HEAT TREATMENT PROCESS CAN CAUSE THE FUEL RAIL PULSE DAMPER RETAINER CLIP TO FRACTURE, RESULTING IN INADEQUATE RETENTION OF THE DAMPER. IF THE DAMPER BECOMES LOOSE, FUEL COULD BE PUMPED BY THE FUEL PUMP INTO THE UNDER HOOD AREA.

Consequence & remedy

Consequence: IN THE PRESENCE OF AN IGNITION SOURCE, A FIRE COULD RESULT.

Remedy: DEALERS WILL REPLACE THE FUEL RAIL PULSE DAMPER RETAINER CLIPS ON THESE ENGINES FREE OF CHARGE. THE RECALL BEGAN ON SEPTEMBER 1, 2006. OWNERS MAY CONTACT WORKHORSE AT 877-294-6773.

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

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