# Service bulletin S3949 202404

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: 10253781
- Published by NHTSA: 2024\-05\-01
- Manufacturer's number: S3949 202404
- Manufacturer's date: 2024\-04\-18
- NHTSA component: STEERING

## NHTSA's summary

Service Campaign: Steering Stub Shaft Hardware Replacement

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10253781-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10253781-9999.pdf)

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

## Components

Steering

## Vehicles listed

- 2024 to 2025 MACK GRANITE \(GR\)
- 2024 MACK PINNACLE \(PI/PN\)
- 2025 MACK PIONEER PR \(4\)

## Recalls for the same vehicles and component

- [25V521000](/recalls/nhtsa/25V521000.md), 2025-08-11: STEERING
- [24V504000](/recalls/nhtsa/24V504000.md), 2024-07-02: STEERING:LINKAGES:TIE ROD ASSEMBLY
- [24V424000](/recalls/nhtsa/24V424000.md), 2024-06-09: POWER TRAIN:AXLE ASSEMBLY; STEERING:LINKAGES:TIE ROD ASSEMBLY
- [24V398000](/recalls/nhtsa/24V398000.md), 2024-06-04: STEERING:LINKAGES:DRAG:LINK:CONNECTION
- [23V899000](/recalls/nhtsa/23V899000.md), 2023-12-26: STEERING
- [23V887000](/recalls/nhtsa/23V887000.md), 2023-12-22: STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM

## Other bulletins for the same vehicles and component

- [S0285 202410](/bulletins/11009712.md), 2024-11-04, Service campaign: STEERING. SERVICE CAMPAIGN \- Pitman Arm Pinch Bolt Alignment
- [S3284 202408](/bulletins/11006863.md), 2024-09-04, Service campaign: STEERING. Service Campaign: Mack trucks has determined that certain AN, GR, and PI models were built using the incorrect power steering cooler hose clamps.
- [S3949 202406](/bulletins/11003045.md), 2024-07-03, Service campaign: STEERING. SC \- Steering Stub Shaft Hardware Replacement
- [S3857 202402](/bulletins/10251335.md), 2024-03-06, Service bulletin: STEERING; SUSPENSION. Service Campaign \- MMD Suspension Bracket Torque.
- [S3275](/bulletins/10238816.md), 2023-07-06, Service bulletin: STEERING. Campaign \- Mack trucks has determined that certain AN, GR, and PI models were built using the incorrect power steering cooler hose clamps.

JSON: [/v1/bulletins/10253781](/v1/bulletins/10253781)

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