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April 28, 2026 Service bulletin

Cbr

Mack technical service bulletin CBR 2568-3 202604 for 2025-2027 Mack Pioneer PR (4) and 2026-2027 Mack Anthem An (4).

Bulletin number
CBR 2568-3 202604
Component
Electrical system
Summary
CBR - Communication Lost With Ultracapacitor Message With Associated CCIOM DTC U100687 and a Startability Issue.

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