Service bulletins for the 2018 Chevrolet 5500HD
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
365 on file from NHTSA, as of 2026-10-19.
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By component
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Only bulletins with component: Manual transmission are shown. Show all
| 17NA050 | 2022-05-31. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:INTERNAL:SHAFT:INTERMEDIATE/LAY; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); FUEL SYSTEM, DIESEL. This informational bulletin explains how a health report is required when doing repairs on LCF vehicles. |
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| 990420002L | 2021-08-09. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.