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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 C1012 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: C1012 are shown. Show all

Bulletins, newest first
CBR 2408-16 2026012026-02-03. Service bulletin. ELECTRICAL SYSTEM. CBR - Air Production Modulator (APM) DTC C10129B - High/Excessive Flow - PR (4).
CBR 2408-15 2025112025-12-03. Service bulletin. ENGINE; ELECTRICAL SYSTEM. CBR - Air Production Modulator (APM) DTC C10129B - High/Excessive Flow PR(4).
CBR 2408 0920252025-10-01. Service bulletin. UNKNOWN OR OTHER; ENGINE. This document provides guidance for addressing the APM DTC C10129B fault," High/Excessive Flow" This fault was introduced by a previous APM software package and requires specific containment actions.
CBR 2408 0720252025-08-04. Service bulletin. SERVICE BRAKES. CBR - This document provides guidance for addressing the Air Production􀁡Modulator (APM) DTC C10129B fault, "High/Excessive Flow" This fault was introduced by a previous APM software package and requires specific containment actions.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.