Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2023 Silverado 4500 HD.
The 2023 Chevrolet Silverado 4500 HD is a purpose-built medium-duty truck designed for commercial and fleet applications where severe-duty capability is essential, built on a dedicated truck platform engineered for durability under sustained heavy loads. When evaluating this model year within the Silverado 4500 HD's production history, the reliability data presents a notably clean picture: total owner complaints remain exceptionally low at just one filed across all categories, with that single complaint pertaining to service brakes and hydraulic systems, and only one recall affecting this model year. This complaint profile, characterized by minimal owner-reported issues and a limited recall history, positions the 2023 model among the more dependable iterations of this generation, suggesting that any potential structural or component weaknesses identified in earlier model years appear to have been addressed through refinement in the production process.
Fluid capacities, tune-up values and fuel economy at a glance.
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 |
Capacities, torques and tune-up values from the factory service manual.
This engine DOT 4 brake fluid. Torque lug nuts to 100.0 ft-lbs. The firing order is 1-8-7-2-6-5-4-3.
| Brake Fluid | DOT 4 |
| Crankshaft Position (CKP) Sensor Bolt(s) | 18.0 ft-lbs |
| Camshaft Position (CMP) Sensor Bolt(s) | 18.0 ft-lbs |
| Camshaft Bearing/Carrier Cap Bolts or Studs | Retainer bolts: 11.0 ft-lbs |
| Crankshaft Pulley and/or Damper Bolts | 43.0 ft-lbs |
| Cylinder Head Instructions | Left side followed by the right side. |
| Cylinder Head Instructions | Left side followed by the right side. |
| Engine Coolant Temperature (ECT) Sensor Bolt(s) | 15.0 ft-lbs |
| Oxygen (O2S) Sensor Bolt(s) | 31.0 ft-lbs |
| Lug Nuts | 140.0 ft-lbs |
| Lug Nuts | 100.0 ft-lbs |
| Cylinder Firing Order | 1-8-7-2-6-5-4-3 |
| 1 | 15.0 ft. lbs., Step 2: 85° | 15 ft. lbs |
| 1 | 22.0 ft. lbs., Step 2: 59.0 ft. lbs., Step 3: 120°, Step 4: 24.0 | 22 ft. lbs |
| 1 | 22.0 ft. lbs., Step 2: 45° | 22 ft. lbs |
| 1 | 26.0 ft. lbs., Step 2: 30°, Step 3: 30°, Step 4: 30° | 26 ft. lbs |
| 1 | 7.4 ft. lbs., Step 2: 90° | 7.4 ft. lbs |
| 1 | 72.0 ft. lbs., Step 2: 97.0 ft. lbs., Step 3: 60°. Side Bolts: 59.0 | 72 ft. lbs |
| 1 | 2 Bolts | 9 ft. lbs |
| 1 | 7.4 ft. lbs., Step 2: 90° | 7.4 ft. lbs |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
Owner complaints about the 2023 Chevrolet Silverado 4500 HD dominate in one area — the service brakes, hydraulic, 1 of 1 reports (100%), well ahead of the next concern. That matters, because the service brakes, hydraulic are also the target of recall 25V-390 on this vehicle — so the single most useful check before buying or servicing one is confirming it was actually performed. 0 of the reports describe a crash and 0 a fire — a small share of the total, but worth weighing against the service brakes, hydraulic 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 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 420 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… |
| PIT6519 | 2026-05-27 | Unknown Or Other | This preliminary information is to inform technicians and customers that the voice… |
| PIC6540J | 2026-05-14 | Unknown Or Other | This Preliminary information communicates to dealers a procedure to reset the radio. |
| PIC6540H | 2026-05-11 | Unknown Or Other | This Preliminary information communicates to dealers a procedure to reset the radio. |
| PIC6423A | 2026-05-11 | Unknown Or Other | Pi created to provide GM dealers with information on gathering information for projection… |
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
Decode factory build data for a specific vehicle by VIN.
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.