Owners filed 1 complaints about this vehicle with federal regulators, most often about the engine. It has been recalled 2 times.
Park away from buildings
NHTSA attached an advisory to a recall on this vehicle. Advisories apply to specific production runs — check your VIN with the manufacturer or at nhtsa.gov/recalls before driving it.
Most common 2021 Chevrolet 4500Hd problems
1 of the 1 complaints (100%) are about the engine.
Defect. 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.
Remedy. 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.
Filed Nov 23, 20225,861 vehiclesGeneral Motors, LLC
Defect. 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.
Remedy. 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.
All 2 campaigns on file, newest first.
What owners reported
Newest filings
EngineFire
Filed May 2, 202337,632 milesCA
The contact owned a 2021 Chevrolet Silverado 4500HD. The contact stated while the vehicle was parked, the contact noticed that the front end of the vehicle under the hood was in flames. The fire department was able to extinguish the fire. No police report was filed. No one was injured. The vehicle was towed to the salvage lot. The vehicle was not diagnosed. The manufacturer was not contacted. The failure mileage was 37,632.
No unusual pattern of severe incidents in the complaint record.
Complaint counts track how many cars were sold and how long they have been on the road as much as they track quality. A common model from 2013 has had a decade to accumulate reports; a rare one from last year has not. The signal worth weighing is in the severity columns, in whether the same component keeps appearing, and in whether the manufacturer eventually opened a recall for it.
Recall repairs are free for as long as the recall stands. Check whether a specific car still has open work at NHTSA's VIN lookup.
Most recent recall on file: Apr 13, 2023. Source: NHTSA Office of Defects Investigation.