Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2021 LCF 4500HD.
The 2021 Chevrolet LCF 4500HD Overview records a single owner‑reported complaint, with the engine identified as the primary concern, and two recall actions documented in its reliability data. This limited complaint volume and engine‑specific issue place the 2021 model within the broader reliability history of the line, indicating generally stable performance despite isolated setbacks. The model year therefore reflects a modest but notable reliability profile, characterized by few reported problems and a small number of corrective recalls.
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
Owner complaints about the 2021 Chevrolet LCF 4500HD dominate in one area — the engine, 1 of 1 reports (100%), well ahead of the next concern. None of this vehicle's 2 recall campaigns target the engine, so those reports read as owner-reported wear-and-tear rather than an acknowledged defect. 0 of the reports describe a crash and 1 a fire — a small share of the total, but worth weighing against the engine pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.
All 1 complaints on record, top 1 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 2 of 2 campaigns on record for this vehicle.
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. 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…
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… 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…
Showing 5 of 314 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| PIT5966F | 2026-06-23 | Unknown Or Other | This Preliminary information communicates an issue with an OTA pending message still… |
| PIC6423A | 2026-05-11 | Unknown Or Other | Pi created to provide GM dealers with information on gathering information for projection… |
| PIC6551B | 2026-05-11 | Unknown Or Other | This Preliminary information communicates to dealer to perform a MEC reset for wireless… |
| PIT3271Q | 2026-04-01 | Unknown Or Other | This preliminary information communicates information about how to determine if a wheel… |
| PIP6104 | 2026-03-09 | Unknown Or Other | This Preliminary information communicates the steps on how to save a GDS2 Session Log and… |
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
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Cross-vehicle references for the kinds of data on this page.
NHTSA lists 2 recall campaign(s) for this model year. Check your specific vehicle by VIN.