Service bulletins for the 2025 Mack Pioneer
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.
155 on file from NHTSA, as of 2026-10-19.
About U3000 on the 2025 Mack Pioneer: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: U3000 are shown. Show all
| CBR 2527-1 202511 | 2025-12-03. Service bulletin. ELECTRICAL SYSTEM. CBR - Center Chassis Input Output Module(CCIOM) Fault Code U3000-94 - PR(4) |
|---|---|
| CBR 2491-1 082025 | 2025-09-02. Service bulletin. ELECTRICAL SYSTEM. CBR - The purpose of this CBR is to provide instructions when fault code U300056: Electronic Control Unit, Invalid/Incompatible Configuration for the RCIOM is active. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.