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2021 Chevrolet Silverado 6500

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.

Recalls, complaint breakdown & inspection checklist, all in a shareable PDF

2 owner complaints · 1 recalls · data verified July 11, 2026 · source: NHTSA

Unprovenwillitcar.com

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 2 owner complaints 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 →
Complaint volume (40%)100
Severity (30%)100
Recall load (20%)90
Trend (10%)60

The road ahead

What breaks on a 2021 Chevrolet Silverado 6500, plotted where owners report it happening.

Brakes

100%

2 complaints · 1 in the last 2 years

brake line fitting leaking at the main line pressure fitting. this caused brake fluid to leak out and loss of brakes occured.

Lights

50%

1 complaints

brake line fitting leaking at the main line pressure fitting. this caused brake fluid to leak out and loss of brakes occured.

Recalls (1)

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 · 25V390000

General Motors (GM) is recalling certain 2019-2024 Chevrolet Silverado Medium Duty 4500HD, 5500HD, and 6500HD vehicles. The brake pressure sensor assembly may leak brake fluid into the brake pressure switch and cause a 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 brake pressure switch wire harness, free of charge. Owner notification letters were mailed September 11, 2025. Owners may contact GM customer assistance number at 1-866-467-9700. GM's number for this recall is N242482680. Vehicles in this recall that were previously repaired under 23V266 will need to have the new remedy completed.

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 SILVERADO 6500 beats every score on the internet, including ours.

What to ask for

Not set on the 2021? See how every Silverado 6500 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.

The fine print: this verdict is computed from public NHTSA complaint and recall records for the 2021 Chevrolet Silverado 6500 as a model, not for any individual car. A well-maintained example of an “Avoid” can outlast a neglected “Buy”. Informational only, so always get a professional pre-purchase inspection.