# Service bulletin S7674

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: 10233520
- Published by NHTSA: 2023\-04\-04
- Manufacturer's number: S7674
- Manufacturer's date: 2023\-03\-01
- NHTSA component: POWER TRAIN

## NHTSA's summary

Snow door bumber install

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10233520-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10233520-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2023 MACK GRANITE \(GR\)

## Other bulletins for the same vehicles and component

- [TSB M\-913\-001 202609](/bulletins/11037730.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Parker engine\-mounted hydraulic pump service bulletin.
- [CBR 2573\-1 202604](/bulletins/11032092.md), 2026-05-05, Service bulletin: POWER TRAIN. CBR \- Mack Chassis \- Through Shaft Bearing Retainer Breakage On Mack Carriers.
- [CBR 2362\-3 202604](/bulletins/11032086.md), 2026-05-04, Service bulletin: POWER TRAIN. CBR \- Mack Carrier Nut Adhesive Change.
- [CBR 2218\-6 032026](/bulletins/11030582.md), 2026-04-02, Service bulletin: POWER TRAIN. CBR \- Parker F3 Hydraulic Pump Troubleshooting.
- [CBR 2464\-1 202505](/bulletins/11018816.md), 2025-06-02, Service bulletin: POWER TRAIN. Mack Chassis \- Rear Axle Overheat
- [CBR\-2258 202409](/bulletins/11008379.md), 2024-10-03, Service bulletin: POWER TRAIN. CBR: Diagnostic Trouble Code \(DTC\) P107471 \- AMT\-F
- [CBR\-731 202409](/bulletins/11008377.md), 2024-10-03, Service bulletin: POWER TRAIN. CBR: Automated Manual Transmission \(AMT\) Model D or F \(mDrive and I\-Shift, AMT\-D, AMT\-F\) \- Transmission Oil Leakage From Transmission Input Shaft Seal Or Output Shaft Seal \- US10 And Newer Emissions, Common Model Years 2010 And Newer
- [CBR\-2391 202408](/bulletins/11006927.md), 2024-09-04, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. CBR: Diagnostic Trouble Code \(DTC\) U010187\- Lost Communication With TECU
- [CBR\-343 202408](/bulletins/11006923.md), 2024-09-04, Service bulletin: POWER TRAIN. CBR: Mack chassis with an mDRIVE transmission, there have been reports of complete shift assemblies and TECUs being replaced due to technicians being unable to pinpoint the source of the air leak.
- [CBR\-2258 202407](/bulletins/11005409.md), 2024-08-01, Service bulletin: POWER TRAIN. CBR: Diagnostic Trouble Code \(DTC\) P107471 \- AMT\-F

JSON: [/v1/bulletins/10233520](/v1/bulletins/10233520)

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