Service bulletins for the 2020 Chevrolet 4500
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.
285 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Labels and manuals are shown. Show all
| 04-00-89-015X | 2022-08-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only). |
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| 22-NA-070 | 2022-07-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements. |
| 18-NA-099 | 2022-06-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. |
| 18-NA-099 | 2022-04-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.