2021 Chevrolet 4500HD recalls and problems
The 2021 Chevrolet 4500HD has 2 safety recalls and 1 owner complaint filed with NHTSA. Recall repairs are free at any Chevrolet dealer.
Recalls may cover only some 2021 Chevrolet 4500HD vehicles. Check your VIN at NHTSA ↗ to see open recalls for your exact car.
2021 Chevrolet 4500HD recalls
Recall 23V-266: Service Brakes, Hydraulic
Problem: 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.
Recall 22V-874: Equipment
Problem: 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.
2021 Chevrolet 4500HD problems reported by owners
| Problem area | Reports | |
|---|---|---|
| Engine | 1 |
Typical mileage at the time of the problem: 37,632 miles (median of owner reports).
Problems that are not covered by a recall are paid repairs; labor rates follow local mechanic pay — see what auto mechanics earn in each state.
Recent 2021 Chevrolet 4500HD complaints
Owner reports filed with NHTSA, as written (personal details removed). Complaints are not verified by NHTSA.
Other Chevrolet 4500HD years
Frequently asked questions
Does the 2021 Chevrolet 4500HD have any recalls?
Yes — NHTSA lists 2 recalls for the 2021 Chevrolet 4500HD: 23V-266 (service brakes, hydraulic), 22V-874 (equipment). Not every vehicle is affected, so check your VIN at nhtsa.gov/recalls.
What is the most common problem with the 2021 Chevrolet 4500HD?
Owners report engine problems most often (1 reports). The typical mileage when problems were reported is about 37,632 miles.
Are Chevrolet recall repairs free?
Yes. Safety recall repairs are free at authorized Chevrolet dealers, whether you are the first owner or bought the car used.