Total Complaints
3 filings
CHEVROLET SILVERADO 6500 · model year
2021 CHEVROLET SILVERADO 6500
3 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 2021CHEVROLETSILVERADO 6500 carries 3 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 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 2021 SILVERADO 6500 is service brakes with 2 filings, followed by exterior lighting (1). 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 57 investigation files overlapping the 2021 SILVERADO 6500, and 2 remain open. 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.
3
Complaints
0
Crashes
0
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 | 2 |
| EXTERIOR LIGHTING | 1 |
Recalls (1)
25V39000012/06/2025
SERVICE BRAKES, HYDRAULIC:BRAKE FLUID LOW WARNING:SWITCH/SENSOR/FLOAT
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.
Recent Complaints
20250328SERVICE BRAKES
See attached document for complaint.
20230113SERVICE BRAKES
brake line fitting leaking at the main line pressure fitting. this caused brake fluid to leak out and loss of brakes occured.
20230113EXTERIOR LIGHTING
brake line fitting leaking at the main line pressure fitting. this caused brake fluid to leak out and loss of brakes occured.
Compare 2021CHEVROLETSILVERADO 6500 to Similar Vehicles
NHTSA Investigations 2 Open
EA25007Engineering AnalysisOpen
Loss of motive power due to engine failure
PE23022Preliminary EvaluationClosed
Loss of Motive Power due to the Battery Energy Control Module
PE20016Preliminary EvaluationClosed
Electric Vehicle Battery Fires
EA20002Engineering AnalysisClosed
Outboard Front Seat Belt Anchor Cable Failure
PE20011Preliminary EvaluationClosed
Fuel Line Leak
Frequently Asked Questions
How many complaints does the 2021 CHEVROLET SILVERADO 6500 have?▼
The 2021 CHEVROLET SILVERADO 6500 has 3 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
Are there any recalls for the 2021 CHEVROLET SILVERADO 6500?▼
Yes, the 2021 CHEVROLET SILVERADO 6500 has 1 recall(s). The most common affected component is SERVICE BRAKES, HYDRAULIC:BRAKE FLUID LOW WARNING:SWITCH/SENSOR/FLOAT. Recalls are issued by NHTSA and manufacturers must provide a free remedy.
What are the most common problems with the 2021 CHEVROLET SILVERADO 6500?▼
The most-complained component for the 2021 CHEVROLET SILVERADO 6500 is SERVICE BRAKES with 2 complaints. Other frequently reported areas include EXTERIOR LIGHTING.
Is the 2021 CHEVROLET SILVERADO 6500 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 2021 CHEVROLET SILVERADO 6500; 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.