Service bulletin CBR 2447 072025
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 11021326 |
| Published by NHTSA | 2025-08-04 |
| Manufacturer's number | CBR 2447 072025 |
| Manufacturer's date | 2025-07-09 |
| NHTSA component | SUSPENSION |
NHTSA's summary
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.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Suspension
| MACK PIONEER PR (4) | 2025 (the catalog's model; the bulletin names a series or trim of it) |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| CBR 2584-4 202605 | 2026-06-02. Service bulletin. Electronically controlled suspension (ECS) calibration procedure. |
|---|---|
| CBR 2548-1 202601 | 2026-02-03. Service bulletin. CBR - Shock Interference With “Z” Springs. |
| CBR 2016-18 202511 | 2025-12-03. Service bulletin. CBR - Frame or Cab Lean. |
| CBR-2016 202412 | 2025-01-02. Service bulletin. Frame lean can be caused by several seemingly isolated possibilities. The two most common are suspension and frame assembly issues. |