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December 1, 2025 Service bulletin

Technical Service Bulletin Low Coolant Sensor

Freightliner technical service bulletin TSB54-377-FTL for 2022-2026 Freightliner Cascadia, 2022-2026 Freightliner Business Class M2 and 2022-2026 Freightliner 114SD and others.

Bulletin number
TSB54-377-FTL
Component
Engine
Summary
Technical Service Bulletin Low Coolant Sensor

Owners of these vehicles have filed 3 complaints in the engine category.

Vehicles covered

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