# Service bulletin CBR 2429 202608

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: 11036583
- Published by NHTSA: 2026\-09\-01
- Manufacturer's number: CBR 2429 202608
- Manufacturer's date: 2026\-08\-10
- NHTSA component: STRUCTURE:BODY; ELECTRICAL SYSTEM

## NHTSA's summary

This CBR solution outlines the procedures for diagnosing, replacing, calibrating, and programming Flexible Switch Panels and the Security and Cab Interface Module \(SCIM\) to resolve switch malfunction notifications and associated fault codes.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036583-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036583-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Body and frame, Electrical system

## Vehicles listed

- 2025 to 2027 MACK PIONEER PR \(4\)

## Recalls for the same vehicles and component

- [26V631000](/recalls/nhtsa/26V631000.md), 2026-10-01: STRUCTURE:BODY:BUMPERS:ACTIVE SHUTTERS/GRILL; STRUCTURE:EXTERIOR TRIM
- [24V792000](/recalls/nhtsa/24V792000.md), 2024-10-23: ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

## Other bulletins for the same vehicles and component

- [TSB M\-371\-005A 202609](/bulletins/11037821.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM. Jumper Harness Repair for Version 4 Mack Trucks
- [TSB M\-373\-003 202609](/bulletins/11037728.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM. Power Cable Alternator Replacement
- [CBR 2590\-3 202609](/bulletins/11037725.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM. Instrument Cluster Going Dark
- [CBR 2496\-18 202609](/bulletins/11037724.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM. The purpose of this CBR is outline the interim software solution for PR\(4\) and AN\(4\).
- [CBR 2483\-6 202609](/bulletins/11037668.md), 2026-10-01, Service bulletin: ELECTRICAL SYSTEM. Diagnostic instructions for CAN network communication issues.
- [CBR 2597 202608](/bulletins/11036586.md), 2026-09-01, Service bulletin: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. The purpose of this CBR is to provide steps on how to correct a customer complaint of "Service Required" message for air filter replacement appears in the cluster. There may be no option in PTT or the cluster to reset the air filter service interval.
- [CBR 2596 202608](/bulletins/11036585.md), 2026-09-01, Service bulletin: ENGINE; ELECTRICAL SYSTEM. The purpose of this CBR is to provide steps on how to correct a customer complaint of a no crank/engine start condition.
- [CBR 2585\-3 072026](/bulletins/11035504.md), 2026-08-03, Service bulletin: ELECTRICAL SYSTEM. CBR \- The purpose of this CBR is to provide support for fault codes C106718 and/or C106818.
- [CBR 2545\-3 072026](/bulletins/11035501.md), 2026-08-03, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM. CBR \- The purpose of this CBR is to provide guidance on fault code U114688.
- [CBR\-2590\-2 202606](/bulletins/11034132.md), 2026-06-29, Service bulletin: ELECTRICAL SYSTEM. The purpose of this CBR is to provide steps on how to correct a customer complaint of instrument cluster going dark \(blackout\) situation.

JSON: [/v1/bulletins/11036583](/v1/bulletins/11036583)

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