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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.

By type

By component

By trouble code

Only bulletins with component: Brakes are shown. Show all

Bulletins, newest first
CBR 2599 2026082026-09-01. Service bulletin. SERVICE BRAKES. The purpose of this CBR is to provide support for complaints of trailer braking aggressively.
TSB M-590-001 0720262026-08-03. Service bulletin. SERVICE BRAKES. TSB - Wheel Speed Sensor Fitting And Cable Clamping.
CBR 2585-1 2026052026-06-02. Service bulletin. ELECTRICAL SYSTEM; WHEELS; SERVICE BRAKES. CBR to provide support for fault codes C106718 and/or C106818.
CBR 2569-3 2026042026-05-05. Service bulletin. SERVICE BRAKES. CBR - Brake Pad Wear Indicator DTC C107E68.
CBR 2570-1 0320262026-04-02. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES. CBR - EBS - Electro-Pneumatic Module - Signal Compare Failure DTC C109562 - AN (4) - PR.
CBR 2443-3 2026012026-02-03. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES. CBR - Trailer Tandem Adjustment Procedure - PR (4) - AN (4).
CBR 2503 0920252025-10-01. Service bulletin. SERVICE BRAKES. The purpose of this CBR is to outline the steps for adjusting brake pedal freeplay following Foot Brake Modulator (FBM) replacement or when diagnostic code C10C3-77is present.
CBR 407 0720252025-08-04. Service bulletin. SERVICE BRAKES; ELECTRICAL SYSTEM. CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.
CBR 2443 0720252025-08-04. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES. CBR - The truck’s trailer detection system uses a brief pulse of compressed air through the red trailer supply line to detect a connected trailer, but this pulse can inadvertently re-lock air-actuated tandem slide systems; this procedure outlines a method to mitigate the issue while sliding the trailer tandems.
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.
CBR-407 2024092024-10-03. Service bulletin. SERVICE BRAKES. CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
CBR-2024 2024072024-08-01. Service bulletin. SERVICE BRAKES. CBR: Mack Anthem (AN) And Pinnacle (PI) -Bendix ABS Fault SPN 807 FMI 13 Blink code 19-4

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