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February 17, 2026 Service bulletin

Cbr

Mack technical service bulletin CBR 2514 022026 for 2025-2026 Mack Pioneer PR (4) and 2026 Mack Anthem An (4).

Bulletin number
CBR 2514 022026
Component
Electrical system
Summary
CBR - This procedure provides a temporary corrective action for the “Lost Communication to Alternator” message and Vehicle Master Control Unit (VMCU) DTC C103508 caused by a software issue.

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