2023 Fccc Mt45 problems, complaints & recalls
Safety recalls (2)
Engine And Engine Cooling:engine:engine Control Module (Ecu/Ecm) 2022-07-29 · campaign 22V554000 · 1,375 vehicles
Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2023 Freightliner 108SD, 114SD, Business Class M2, Cascadia, 2023 Freightliner FCCC MC, MT45, S2C 106CAB, XCM, S2RV 106CAB, XCR, XCS, and 2023 Western Star 4700, 49X, and 47X vehicles. The engine control module (ECM) may experience an internal short-circuit, which can result in an unexpected engine shut down.
Risk: Unexpected engine shut down can increase the risk of a crash.
Fix: Cummins will replace the ECM, free of charge. Owner notification letters are expected to be mailed September 26, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-949.
Steering 2022-06-08 · campaign 22V405000 · 5,768 vehicles
Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2022-2023 Freightliner (FCCC) MT45, MT45G and 2022-2023 Freightliner Cascadia vehicles. The steering gears may have been incorrectly assembled, which can cause the gear to fracture.
Risk: A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.
Fix: Dealers will inspect and replace the steering gears, as necessary, free of charge. Owner notification letters were mailed December 28,2022. Owners may contact DTNA's customer service at 1-800-547-0712. DTNA's number for this recall is FL-938.
Service bulletins (37)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Service Brakes 2026-07-30 · SS 583788-FCCC · Other
service solution for 2011-2026 mt45,mt55,mt50e updated front brake line & bracket clamping enhancements
Engine 2026-07-17 · CXA 07_25_F1011,F1015 Lbl · Other
cx advocate for lost/damaged replacement f1011/f1015 labels
Steering 2026-07-17 · SS 584261-FCCC · Other
service solution for mt45g & mt55g power steering oil cooler replacement parts (306)
Unknown Or Other 2026-06-05 · SS 580739 FCCC · Other
service solution for step van cat theft deterrent systems
Steering 2026-04-23 · SS 583323 · Other
service solution for walk-in van steering gear noise
Fuel/Propulsion System 2026-04-07 · SS 583339-FCCC · Other
service solution for 2012-2024 mt45g & mt55g 6.0-liter gas or cng failed/cracked fuel pump fuse (303)
Showing the 6 most recent of 37 bulletins. Search all of them free at nhtsa.gov.
What owners report
No detailed complaint narratives on file.
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.