Comparison

VOLVO 600 SERIES vs WORKHORSE W21

Side-by-side comparison of the VOLVO 600 SERIES and WORKHORSE W21 drawn from the NHTSA consumer-complaint database, defect investigations, recall history, and NCAP crash-test ratings.

According to the National Highway Traffic Safety Administration (NHTSA), more than 2,000,000 consumer complaints have been filed against U.S. vehicles (2,054,142 as of August 2026). This is a head-to-head safety comparison between the VOLVO 600 SERIES (1999–2000) and the WORKHORSE W21 (2001–2006), drawn from that federal complaint and recall record; see our methodology for how the figures are compiled.

The VOLVO 600 SERIES (1999–2000, 2 model years) carries 3 NHTSA consumer complaints and 0 safety recalls, while the WORKHORSE W21 (2001–2006, 3 model years) carries 3 complaints and 1 recall. Severity indicators for the pair split as follows: 0 vs 0 crashes, 0 vs 1 fires, and 0 vs 0 reported fatalities.

Raw complaint counts favor whichever nameplate has fewer vehicles on the road, so the cleaner lens is components: which specific part families concentrate each model's filings? For the VOLVO 600 SERIES, the leading complaint category is wheels:lugs/nuts/bolts/studs (1 filings), followed by power train:automatic transmission:cooling unit and lines and fuel/propulsion system. For the WORKHORSE W21, it is service brakes, hydraulic (2), ahead of service brakes. When the two vehicles cluster around the same component, the problem is likely a shared supplier or a shared federal standard under stress; when they diverge, each nameplate has its own defect signature independent of the other.

Average NCAP crash-test scores are not uniformly available for both nameplates in this dataset, which typically means one or both pre-date the 2011 rating methodology refresh. Use the side-by-side table below as your scorecard, but do not treat it as a verdict. Recall counts tell you how many defects the manufacturer has already been compelled to remedy; complaint counts tell you what owners are still flagging today; and safety ratings tell you how the vehicle performs in standardized barrier tests, three different lenses on the same underlying question. The "also compare" links at the bottom of this page let you triangulate against neighboring nameplates in each model's competitive set.

VOLVO 600 SERIES vs WORKHORSE W21 - NHTSA complaint, recall, and safety rating comparison
VOLVO 600 SERIES Metric WORKHORSE W21
N/A Avg Safety Rating N/A
3 Total Complaints 3
0 Total Recalls 1
0 Crashes Reported 0
0 Fires Reported 1
0 Injuries Reported 0
0 Deaths Reported 0
2 years Years on Market 3 years

Top Complaint Categories

WHEELS:LUGS/NUTS/BOLTS/STUDS
1
0
POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES
1
0
FUEL/PROPULSION SYSTEM
1
0
SERVICE BRAKES, HYDRAULIC
0
2
SERVICE BRAKES
0
1
VOLVO 600 SERIES WORKHORSE W21

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Frequently Asked Questions

Which is safer, VOLVO 600 SERIES or WORKHORSE W21?
VOLVO 600 SERIES has 3 total NHTSA complaints with 0 crashes, while WORKHORSE W21 has 3 complaints with 0 crashes. Review individual model years for specific safety ratings.
How many recalls does VOLVO 600 SERIES have compared to WORKHORSE W21?
VOLVO 600 SERIES has 0 recalls across 2 model years, while WORKHORSE W21 has 1 recalls across 3 model years.
What are the most common problems with VOLVO 600 SERIES?
The most commonly reported issues for VOLVO 600 SERIES are: WHEELS:LUGS/NUTS/BOLTS/STUDS (1 complaints), POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES (1 complaints), FUEL/PROPULSION SYSTEM (1 complaints).
What are the most common problems with WORKHORSE W21?
The most commonly reported issues for WORKHORSE W21 are: SERVICE BRAKES, HYDRAULIC (2 complaints), SERVICE BRAKES (1 complaints).

Source: National Highway Traffic Safety Administration (NHTSA) complaints and recalls data