Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 1 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.
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 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
1 reports
4,000 miles · Sep 8, 2010
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2005 WORKHORSE W21. THE VEHICLE WAS INCLUDED IN THE RECALL ASSOCIATED WITH NHTSA CAMPAIGN ID NUMBER 09V110000, SERVICE BRAKES, HYDRAULIC. SINCE THE RECALL WAS ISSUED HE NOTIFIED THE MANUFACTURER IN ORDER TO ATTEMPT TO HAVE THE VEHICLE REPAIRED. HE WAS TOLD CONTINUOUSLY THAT THE PARTS NECESSARY TO REPAIR TH…
Read full complaint
TL*THE CONTACT OWNS A 2005 WORKHORSE W21. THE VEHICLE WAS INCLUDED IN THE RECALL ASSOCIATED WITH NHTSA CAMPAIGN ID NUMBER 09V110000, SERVICE BRAKES, HYDRAULIC. SINCE THE RECALL WAS ISSUED HE NOTIFIED THE MANUFACTURER IN ORDER TO ATTEMPT TO HAVE THE VEHICLE REPAIRED. HE WAS TOLD CONTINUOUSLY THAT THE PARTS NECESSARY TO REPAIR THE VEHICLE WERE UNAVAILABLE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 4,000 AND THE CURRENT MILEAGE WAS 25,580.
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
0
No exact-year investigations in this snapshot.
2005 Workhorse W21 Problems, Complaints & Recalls | Skip That Year
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