2021 Chevrolet Silverado 6500 Problems, Complaints & Recalls
- Compared with other Silverado 6500 years
- Not enough data 1st of 7 for complaints
- Safety recalls
- 1 recall: check your VIN
- NHTSA crash rating
- Not rated
Owners have filed 2 complaints with NHTSA about the 2021 Chevrolet Silverado 6500. That is the most of any Silverado 6500 model year in the database (7 years). The most reported problem area is service brakes (2 complaints, 100%). There is 1 safety recall covering this model year.
- 2owner complaints
- 1safety recalls
- 0NHTSA investigations
- 0complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2021 Chevrolet Silverado 6500 problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Service Brakes | 2 | 100% | — | — | — |
| Exterior Lighting | 1 | 50% | — | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2021 Chevrolet Silverado 6500 recalls (1)
Tap a recall to see the problem, the risk and the fix.
Service brakes, hydraulic:brake fluid low warning:switch/sensor/floatPark outside
Problem: 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.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
See attached document for complaint.
brake line fitting leaking at the main line pressure fitting. this caused brake fluid to leak out and loss of brakes occured.
Other Chevrolet Silverado 6500 years
← 2020 Silverado 6500 · 2022 Silverado 6500 →
| Year | Complaints | Recalls |
|---|---|---|
| 2025 Silverado 6500 | 0 | 1 |
| 2024 Silverado 6500 | 1 | 1 |
| 2023 Silverado 6500 | 0 | 1 |
| 2022 Silverado 6500 | 0 | 1 |
| 2021 | 2 | 1 |
| 2020 Silverado 6500 | 0 | 1 |
| 2019 Silverado 6500 | 0 | 4 |
See all Chevrolet Silverado 6500 problems by year, every Chevrolet model, or the Chevrolet VIN decoder.
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Frequently asked questions
What are the most common problems with the 2021 Chevrolet Silverado 6500?
Owners most often report service brakes, exterior lighting problems. The top one, service brakes, accounts for 2 complaints.
Was there a recall on the 2021 Chevrolet Silverado 6500?
Yes, 1 safety recall. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2021 Chevrolet Silverado 6500 a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Silverado 6500 model years, the 2021 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.