Total Complaints
1 filings
WORKHORSE W21 · model year
2006 WORKHORSE W21
1 NHTSA complaints, and 1 recall campaign listed for this cohort. A VIN lookup is required to determine whether a specific vehicle has an unrepaired recall.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2006WORKHORSEW21 carries 1 consumer safety complaint in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 1 fire, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
The most frequently selected component label in reports for the 2006 W21 is service brakes, hydraulic with 1 filings. Complaint categories reflect owner reports and intake categorization; they do not establish a defect pattern or cause. This cohort has 1 NHTSA recall campaign listed below. Enter a VIN in NHTSA's official recall lookup to determine whether a specific vehicle has an unrepaired recall.
NHTSA currently has 2 investigation files overlapping the 2006 W21. Owners comparing this cohort against neighboring years should read the complaint-by-year trend as report volume, not a causal diagnosis. Use the related-complaint feed and the official recall lookup when researching a specific vehicle.
1
Complaints
0
Crashes
1
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| SERVICE BRAKES, HYDRAULIC | 1 |
Recalls (1)
09V11000003/04/2009
SERVICE BRAKES, HYDRAULIC
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 W
Recent Complaints
20100729FireSERVICE BRAKES, HYDRAULIC
TL* THE CONTACT OWNS A 2006 MONACO MONARCH RV EQUIPPED WITH A WORKHORSE CHASSIS W21. WHILE DRIVING APPROXIMATELY 35 MPH, THE BRAKE PEDAL WAS ENGAGED AND THE ANTI-LOCK BRAKE SYSTEM WARNING LIGHT ILLUMINATED. THE CONTACT SMELLED A BURNING ODOR AND NOTICED SMOKE EMITTING FROM BOTH FRONT WHEELS. THE VEHICLE WAS PULLED OVER TO THE SIDE OF THE ROAD. THE VEHICLE WAS ABLE TO RESUME OPERATION. A RECALL NOTIFICATION WAS RECEIVED ON MAY 21, 2009 ASSOCIATED WITH NHTSA CAMPAIGN ID NUMBER 09V110000 (SERVICE BRAKES, HYDRAULIC). THE REPAIR PART WAS UNAVAILABLE AND THE MANUFACTURER WAS UNABLE TO PROVIDE AN ARRIVAL DATE FOR THE PART. THE CONTACT HAD CONCERN OF THE SAFETY RISK INVOLVED AND THE UNCERTAINTY OF THE PART AVAILABILITY. THE FAILURE MILEAGE WAS APPROXIMATELY 5,000.
Mileage: 5,000
Compare 2006WORKHORSEW21 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 2006 WORKHORSE W21 have?▼
The 2006 WORKHORSE W21 has 1 NHTSA complaints, 0 crashes, 1 fires, 0 injuries, and 0 deaths reported.
Are there any recalls for the 2006 WORKHORSE W21?▼
Yes, the 2006 WORKHORSE W21 has 1 recall(s). The most common affected component is SERVICE BRAKES, HYDRAULIC. Recalls are issued by NHTSA and manufacturers must provide a free remedy.
What are the most common problems with the 2006 WORKHORSE W21?▼
The most-complained component for the 2006 WORKHORSE W21 is SERVICE BRAKES, HYDRAULIC with 1 complaints. Other frequently reported areas include various components.
Is the 2006 WORKHORSE W21 safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data vintage: August 2026. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Every figure on PlainCars is rendered directly from NHTSA complaint and safety data, no number is typed in by an editor. This year-specific record is rendered from NHTSA ODI, recall, and NCAP rows for the 2006 WORKHORSE W21; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.
Read our methodology - how this data is sourced, computed, and verified.