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Service bulletins for the 2026 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.

100 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Suspension are shown. Show all

Bulletins, newest first
CBR 2584-4 2026052026-06-02. Service bulletin. SUSPENSION; ELECTRICAL SYSTEM. Electronically controlled suspension (ECS) calibration procedure.
CBR 2548-1 2026012026-02-03. Service bulletin. SUSPENSION. CBR - Shock Interference With ā€œZā€ Springs.
CBR 2016-18 2025112025-12-03. Service bulletin. SUSPENSION; UNKNOWN OR OTHER. CBR - Frame or Cab Lean.

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