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: Suspension are shown. Show all
| CBR 2584-4 202605 | 2026-06-02. Service bulletin. SUSPENSION; ELECTRICAL SYSTEM. Electronically controlled suspension (ECS) calibration procedure. |
|---|---|
| CBR 2548-1 202601 | 2026-02-03. Service bulletin. SUSPENSION. CBR - Shock Interference With “Z” Springs. |
| CBR 2016-18 202511 | 2025-12-03. Service bulletin. SUSPENSION; UNKNOWN OR OTHER. CBR - Frame or Cab Lean. |
| CBR 2447 072025 | 2025-08-04. Service bulletin. SUSPENSION. CBR - Electronically Controlled Suspension (ECS) calibration using Premium Tech Tool (PTT) is required to correct discrepancies between the cluster load indicator and actual scale values, ensuring proper functionality of liftable axles and preventing unintended axle behavior. |
| CBR-2016 202412 | 2025-01-02. Service bulletin. SUSPENSION. Frame lean can be caused by several seemingly isolated possibilities. The two most common are suspension and frame assembly issues. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.