Check a VIN

September 1, 2025 Service campaign

The vehicle’s steering shaft support bracket may have been assembled with incorrect hardware.

Mack technical service bulletin S4584 092025 for 2026 Mack Granite (GR) and 2026 Mack Pinnacle (Pi/PN).

Bulletin number
S4584 092025
Component
Steering
Summary
The vehicle’s steering shaft support bracket may have been assembled with incorrect hardware.

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