Service bulletins for the 2023 Peterbilt 579
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.
91 on file from NHTSA, as of 2026-10-19.
By type
By component
By topic
Only bulletins with component: Body and frame are shown. Show all
| 14-036 | 2026-04-07. Other. STRUCTURE:BODY. One-Piece Aluminum Crossmember Repair - Repair procedures are available to support the replacement of intermediate or midship one-piece aluminum crossmembers. |
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| 34-095 | 2024-03-04. Service bulletin. STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD. Fix As Fail – Dimensions and instructions are available for trimming the radiator recirculation shields to alleviate possible rub to the hood harness. (ARC 1/22/24) |
| 36-008 | 2023-06-03. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM. Certain 579 chassis are eligible to receive production level Digital Display software, Digital Display, Lane Keep Assist MUX switches, and Kick Panel. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.