Total Complaints
1 filings
WORKHORSE W21 · model year
2006 WORKHORSE W21
1 NHTSA complaints, and 1 active recall for this specific cohort.
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.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2006 W21 is service brakes, hydraulic with 1 filings. Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 1 active recall campaign, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 2 investigation files overlapping the 2006 W21. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
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 as of 2025. 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.
Read our methodology — how this data is sourced, computed, and verified.