Service bulletins for the 2020 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.
378 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 010089010N | 2019-11-25. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information on comebacks prevention information and using customer concern verification sheets (CCVS). |
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| 18NA306 | 2019-11-25. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only). |
| 17NA050 | 2019-11-25. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin explains how a health report is required when doing repairs on LCF vehicles. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.