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January 7, 2026 Service bulletin

Cbr

Mack technical service bulletin CBR 2107-22 202601 for 2017-2024 Mack Anthem (An), 2019-2026 Mack Granite (GR) and 2017-2018 Mack Cxu and others.

Bulletin number
CBR 2107-22 202601
Component
Engine
Summary
CBR - Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions to US22+OBD2023 (DOES NOT APPLY TO AN(4) and PR(4)).

Owners of these vehicles have filed 2 complaints in the engine category.

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