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2021 Chevrolet 4500
Limited data: few reports on file, read the verdict loosely
Too few owner complaints are on file to affirm this car. Treat it as unproven, not endorsed, and lean hard on a professional pre-purchase inspection.
1 owner complaints · 2 recalls · data verified July 15, 2026 · source: NHTSA
What the record shows so far
Has a "park it / park outside" recall, the most serious kind. Verify the fix was done before buying.
Only 1 owner complaint on file for this exact model year, too few to judge long-term reliability. Treat this as unproven, not endorsed, and lean on a professional inspection.
The math, shown
Full methodology →How it crashes
NHTSA’s own crash tests, separate from the reliability score above.
NHTSA hasn’t published a crash-test rating for this model year. That’s common for lower-volume or older models. It doesn’t mean the car is unsafe, just that this program hasn’t tested it.
Source: nhtsa.gov/ratings. Star ratings compare vehicles within the same class and size, not across every car on the road.
The road ahead
What breaks on a 2021 Chevrolet 4500, plotted where owners report it happening.
Engine
100%1 complaints
“The contact owned a 2021 Chevrolet Silverado 4500HD. The contact stated while the vehicle was parked, the contact noticed that the front end of the vehicle under the h…”
Recalls (2)
Safety recall repairs are free at the brand’s franchised dealers. Before buying, run the VIN at nhtsa.gov/recalls and make the seller show the work was done.
Park itService Brakes, Hydraulic · 23V266000
General Motors. LLC (GM) is recalling certain 2019-2023 Chevrolet 4500HD, 5500HD, and 6500HD Medium-Duty trucks. The brake pressure sensor assembly may leak brake fluid into the brake pressure switch and cause an electrical short-circuit.
Risk: An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
Fix: Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the master cylinder pressure sensor and inspect the wire harness, replacing it, if necessary, free of charge. Owner notification letters were mailed July 11, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222375270.
Equipment · 22V874000
General Motors, LLC (GM) is recalling certain 2021-2022 Chevrolet 4500HD/5500HD/6500HD vehicles. The hex flange lock nuts used in the suspension and steering joints, were improperly heat treated and may break.
Risk: Broken hex flange lock nuts may cause a loss of tension, leading to steering instability, and increasing the risk of a crash.
Fix: Dealers will replace the hex flange lock nuts as necessary, free of charge. Interim owner notification letters informing owners of the safety risk were mailed December 27, 2022. Owner notification letters were mailed February 10, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222391080.
Before you hand over money
Verify the recall work was done
NHTSA’s free lookup shows whether this exact car had its recall remedies completed.
Free NHTSA VIN check ↗Get a pre-purchase inspection
A $150 to $250 independent inspection of this exact 2021 Chevrolet 4500 beats every score on the internet, including ours.
What to ask forNot set on the 2021? See how every 4500 model year scores →
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What owners say
Real owners of this exact model-year, shown separately from the NHTSA score. If they disagree, that’s worth knowing.