RoadVitals

2021 Chevrolet 4500HD

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

NHTSA has issued a “park outside” advisory affecting this model year.

Campaign 23V266000. Confirm whether your specific vehicle is covered using its VIN before acting on this.

Check your VIN on NHTSA.gov
Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
1
Latest May 2, 2023
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
2
Latest Apr 13, 2023
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
1

Overview

Our database contains 1 NHTSA owner-reported complaint for the 2021 Chevrolet 4500HD, most frequently naming the engine category. 2 safety recalls have been issued covering this model year; and 313 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Engine1100.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

2 campaigns cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
23V266000NHTSA advisory: park outside

SERVICE BRAKES, HYDRAULIC

Apr 13, 2023
40,428 units potentially affected
The 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.
The risk: An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
The 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.
General Motors, LLCManufacturer number N222375270View on NHTSA.gov
22V874000

EQUIPMENT

Nov 23, 2022
5,861 units potentially affected
The 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.
The risk: Broken hex flange lock nuts may cause a loss of tension, leading to steering instability, and increasing the risk of a crash.
The 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.
General Motors, LLCManufacturer number N222391080View on NHTSA.gov

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Engine
Filed May 2, 2023
Fire reported

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.

NHTSA ID
11520064
Incident
Apr 11, 2023
Mileage
37,632 mi

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

PIT5099J

PI to help diagnose A/C concern

PIT5966F

This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.

PIC6423A

Pi created to provide GM dealers with information on gathering information for projection issue

PIC6551B

This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues

PIT3271Q

This preliminary information communicates information about how to determine if a wheel and tires size change is available.

PIP4902V

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Chevrolet 4500HD by model year
YearComplaintsRecallsInvestigationsIssue Index
2023010—
2022030—
2021Viewing120—
2020040—
2019040—
2018010—
2017010—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.