# Service bulletin CBR 2172\-5 082025

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: 11022289
- Published by NHTSA: 2025\-09\-02
- Manufacturer's number: CBR 2172\-5 082025
- Manufacturer's date: 2025\-08\-22
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

CBR \- When an OTA \(Over\-The\-Air\) job starts to program the VECU blocks the starter relay out, if the job ends in a Critical failure, the vehicle will remain in Safe State.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11022289-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11022289-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2021 to 2026 MACK ANTHEM \(AN\)
- 2026 MACK ANTHEM AN \(4\)
- 2021 to 2025 MACK GRANITE \(GR\)
- 2026 MACK GRANITE GR \(4\)
- 2021 to 2026 MACK LR
- 2021 to 2026 MACK LRBE \(ELECTRIC\)
- 2021 to 2026 MACK MD
- 2024 to 2026 MACK MD \(ELECTRIC\)
- 2025 to 2026 MACK MD \(GASOLINE\)
- 2021 to 2026 MACK PINNACLE \(PI/PN\)
- 2025 to 2026 MACK PIONEER PR \(4\)
- 2021 to 2026 MACK TERRAPRO \(TE\)

## Recalls for the same vehicles and component

- [25V382000](/recalls/nhtsa/25V382000.md), 2025-06-10: ELECTRICAL SYSTEM:12V/24V/48V BATTERY
- [24V792000](/recalls/nhtsa/24V792000.md), 2024-10-23: ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
- [2024194](/recalls/tc/2024194.md), 2024-03-27: Electrical
- [24V232000](/recalls/nhtsa/24V232000.md), 2024-03-27: ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
- [2023630](/recalls/tc/2023630.md), 2023-11-22: Electrical
- [23V310000](/recalls/nhtsa/23V310000.md), 2023-05-02: ELECTRICAL SYSTEM:HORN
- [2023021](/recalls/tc/2023021.md), 2023-01-24: Electrical

## 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 2429 202608](/bulletins/11036583.md), 2026-09-01, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. 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.
- [CBR 159 202608](/bulletins/11036580.md), 2026-09-01, Service bulletin: ELECTRICAL SYSTEM. Mack Trucks Equipped With A Cummins Engine \- Engine Preheat Icon Does Not Illuminate In The Instrument Cluster \(IC\) During Engine Pre\-heat \(Intake Air Heater\) Operation \- Vehicles With 2018Instrument Cluster Update, Model Year2018 And Newer
- [TSB M\-371\-005 072026](/bulletins/11035509.md), 2026-08-03, Service bulletin: ELECTRICAL SYSTEM. TSB \- Jumper Harness Repair.

JSON: [/v1/bulletins/11022289](/v1/bulletins/11022289)

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