CHEVROLET SILVERADO 6500 · model year

2021 CHEVROLET SILVERADO 6500

3 NHTSA complaints, and 1 active recall for this specific cohort.

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.

Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2021 SILVERADO 6500 is service brakes with 2 filings, followed by exterior lighting (1). 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 57 investigation files overlapping the 2021 SILVERADO 6500, and 2 remain open. 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.

3
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths

Total Complaints

3 filings

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

ComponentCount
SERVICE BRAKES2
EXTERIOR LIGHTING1

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

View all investigations

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 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.