Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 5500HD/5500XD Medium Duty.
The 2018 Chevrolet 5500HD/5500XD is a medium‑duty truck that incorporates a heavy‑duty drivetrain as indicated by its HD and XD badging. Its complaint history across the 2017‑2023 model years records a steady six reports each year, with the peak of six complaints occurring in 2019, which also corresponds to the lowest count for that period. This uniform complaint volume indicates that the 2018 model year sits within a phase of relatively consistent reliability for the series.
Capacities, torques and tune-up values from the factory service manual.
The firing order is 1-8-7-2-6-5-4-3.
| Cylinder Firing Order | 1-3-4-2 |
| Cylinder Firing Order | 1-3-4-2 |
| Cylinder Firing Order | 1-8-7-2-6-5-4-3 |
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.
Isuzu Technical Center of America, Inc. (Isuzu) is recalling certain 2015-2017 Isuzu NPR, Reach, 2016-2020 Isuzu NPR XD, NPR HD, NQR, 2016-2021 Isuzu NRR, 2017-2020 Chevrolet 4500XD, 4500HD, 5500HD, and 2020 Chevrolet… Remedy: Isuzu will notify owners, and dealers will inspect and, if needed, replace and tighten the rear axle U-bolt nuts, free of charge. The recall began on April 23, 2021. Owners may…
Showing 5 of 363 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| 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… |
| PIP4902V | 2026-03-09 | Unknown Or Other | This preliminary information advises a dealer on how to email GDS2 session logs into… |
| PIP4902U | 2026-01-08 | Unknown Or Other | This preliminary information advises a dealer on how to email GDS2 session logs into… |
| PIT5214G | 2025-11-20 | Unknown Or Other | This Preliminary Information communication provides information to the technician about… |
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.