# Service bulletin CBR 2495\-4 202511

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: 11026031
- Published by NHTSA: 2025\-12\-03
- Manufacturer's number: CBR 2495\-4 202511
- Manufacturer's date: 2025\-11\-13
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

CBR \- Carb 24 Phase 1 \- 48V Diagnostics Guide.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11026031-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11026031-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2023 to 2024 MACK ANTHEM \(AN\)
- 2023 to 2024 MACK GRANITE \(GR\)

## Recalls for the same vehicles and component

- [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

- [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
- [CBR 2712\-7 032026](/bulletins/11030579.md), 2026-04-02, Service bulletin: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. CBR \- No Start Condition After Over the Air Programing.
- [CBR 2171\-11 202511](/bulletins/11026025.md), 2025-12-03, Service bulletin: ENGINE; ELECTRICAL SYSTEM. CBR \- Mack Temperature Sensor Troubleshooting Guide
- [CBR 2495 092025](/bulletins/11023450.md), 2025-10-01, Service bulletin: ELECTRICAL SYSTEM; ENGINE. The purpose of the 48V EATS heater system is to provide additional heat to the exhaust stream allowing the EATS to become active earlier during acold start and during engine operation that produces low exhaust gas temperatures.
- [CBR 2172\-5 082025](/bulletins/11022289.md), 2025-09-02, Service bulletin: ELECTRICAL SYSTEM. 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.
- [CBR 407 072025](/bulletins/11021333.md), 2025-08-04, Service bulletin: SERVICE BRAKES; ELECTRICAL SYSTEM. CBR \- To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.
- [CBR 2488 072025](/bulletins/11021332.md), 2025-08-04, Service bulletin: ELECTRICAL SYSTEM. CBR \- A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back\-office communication but failing to transmit GPS location data.
- [CBR 901\-5 202505](/bulletins/11018811.md), 2025-06-02, Service bulletin: ELECTRICAL SYSTEM. Remote Control Central Door Lock, Programming; Key Fob Cannot Be Programmed Or Does Not Work After Programming \- Model Year 2018 And Newer
- [CBR\-2452 202503](/bulletins/11016348.md), 2025-04-02, Service bulletin: ELECTRICAL SYSTEM. If the vehicle door is open and the truck is in neutral, a popup message may appear on the Driver Information Display \(DID\) instructing the operator to shift into neutral. If this message appears while the vehicle is already in neutral, the Instrument Cluster \(IC\)requires a software update.
- [S0310 202409](/bulletins/11008392.md), 2024-10-04, Service campaign: ELECTRICAL SYSTEM. Service Campaign: TGW3 Non\-Communication

JSON: [/v1/bulletins/11026031](/v1/bulletins/11026031)

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