Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2021 Silverado 5500 HD.
The 2021 Chevrolet Silverado 5500 HD is a model with a documented complaint history spanning from 2019 to 2024. This reliability record is characterized by a peak of three complaints in 2023 and a low of one complaint in 2024. Consequently, the 2021 model year sits within a production window defined by consistently low complaint volumes.
Engine, drivetrain, dimensions and economy.
| Overall length | 241.3 in |
| Overall width | 81.1 in |
| Overall height | 75.6 in |
| Wheelbase | 156.7 in |
| Curb weight | 4674 lb |
| Track (front / rear) | 68.1 / 68.1 in |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
Showing 1 of 1 campaigns on record for this vehicle.
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… Remedy: 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…
Showing 5 of 442 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… |
| PIP6108 | 2026-04-14 | Unknown Or Other | This PI instructs technicians to inspect the ground plane on MD Silverado vehicles with… |
| PIT3271Q | 2026-04-01 | Unknown Or Other | This preliminary information communicates information about how to determine if a wheel… |
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 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.