2026 Western Star 47x problems, complaints & recalls
Safety recalls (6)
Electrical System:12v/24v/48v Battery 2026-02-11 · campaign 26V079000 · 26,960 vehicles
Defect: Daimler Trucks North America (DTNA) is recalling certain 2020-2027 Western Star 49X and 2021-2027 Western Star 47X vehicles. A stud connecting the battery to the starter at the frame rail may have been incorrectly installed or may corrode, which can cause a short circuit.
Risk: A short circuit increases the risk of a fire.
Fix: Dealers will repair the studs, free of charge. Owner notification letters were mailed May 22, 2026. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is F1029. This recall replaces and expands NHTSA recall number 25V326. Vehicles already repaired under the previous recall will need to have the new remedy completed.
Suspension:critical Fasteners 2025-11-04 · campaign 25V760000 · 18,783 vehicles
Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2026 Western Star 49X, Freightliner Business Class M2, Freightliner 114SD, Freightliner 108SD, 2021-2026 Western Star 47X, 2021-2023 Freightliner 122SD, 2022 Western Star 48X, and 2023 Western Star 4700 vehicles. The axle clamp fasteners may be loose, which can result in a loss of vehicle control.
Risk: A loss of vehicle control increases the risk of a crash.
Fix: Dealers will inspect and tighten the fasteners, as necessary, free of charge. Owner notification letters were mailed December 29, 2025. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is F1027.
Service Brakes, Air:critical Fasteners 2025-09-11 · campaign 25V601000 · 402 vehicles
Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2025 FCCC XCR, FCCC XBS, FCCC MT45, Western Star 57X, 2025-2026 Freightliner Business Class M2, Freightliner Cascadia, Freightliner 114SD, Freightliner 108SD, FCCC MT55G, FCCC MT45G, FCCC XCP, FCCC XCM, Western Star 49X, Western Star 47X, 2026 Freightliner Cascadia 5th Gen, FCCC MT55, and FCCC MT50E vehicles. The brake caliper mounting bolts may loosen and detach, which can cause a loss of brake function and damage the tire and/or whe
Risk: A loss of brake function can increase the risk of a crash. In addition, a damaged wheel or tire can lead to a loss of vehicle control, increasing the risk of a crash.
Fix: Dealers will inspect and replace or tighten the brake caliper mounting bolts, as necessary, free of charge. Owner notification letters were mailed November 10, 2025. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is F1023.
Steering:critical Fasteners 2025-09-11 · campaign 25V603000 · 343 vehicles
Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2024-2026 Western Star 47X, Freightliner Business Class M2, FCCC MT55G, 2025-2026 Western Star 49X, Freightliner Cascadia, Freightliner 114SD, FCCC MT45G, FCCC S2RV106, 2026 Thomas Built Buses Saf-T-Liner C2, Freightliner eCascadia, FCCC S2C106, and Freightliner 108SD vehicles. The tie rod castle nut and cotter pin may not be installed properly, which can result in a loss of vehicle steering control.
Risk: A loss of vehicle steering control increases the risk of a crash.
Fix: Dealers will inspect and replace the tie rod assembly, as necessary, free of charge. Owner notification letters were mailed November 10, 2025. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is D25R2.
Electrical System:12v/24v/48v Battery 2025-06-23 · campaign 25V326000 · 22,271 vehicles
Defect: Daimler Trucks North America (DTNA) is recalling certain 2020-2026 Western Star 49X and 2021-2026 Western Star 47X vehicles. A stud connecting the battery to the starter at the frame rail may have been incorrectly installed, which can cause a short circuit.
Risk: A short circuit increases the risk of a fire.
Fix: DTNA will inspect and replace damaged cables and loose hardware. In addition, DTNA will properly tighten hardware and install dielectric tape. All repairs will be performed, as necessary, free of charge. Owner notification letters were mailed July 1, 2025. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is F1020. This recall is replaced by NHTSA recall number 26V079. Vehicles already repaired under this recall will need to have the new remedy completed.
Exterior Lighting:brake Lights 2025-03-25 · campaign 25V187000 · 1,968 vehicles
Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2026 Freightliner eM2, Freightliner 108SD, Freightliner 114SD, Freightliner Cascadia, 2025-2026 Freightliner Business Class M2, Western Star 47X, and Western Star 49X vehicles. A software error in the advanced signal and actuator module for the automatic emergency braking system may cause the brake lights to fail to illuminate.
Risk: Brake lights that fail increase the risk of a crash.
Fix: Dealers will update the automatic emergency braking system software, free of charge. Owner notification letters were mailed May 15, 2025. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is F1018.
Service bulletins (77)
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.
Electrical System 2026-09-23 · TSB-54-102-WST · Service Bulletin/Repair Instructions
technical service bulletin for j1939 communication errors with cummins engine automated or allison transmission and bendix side radar
Power Train 2026-09-04 · MAN 0000072868 · Other
detroit transmissions manual update for symptom diagnostics — dt12 c/d box range shift to neutral with reversing events (aborts)
Vehicle Speed Control 2026-09-03 · SF735-DLR LTR · Service Campaign
revised field service campaign for adaptive cruise control (acc): cummins medium duty engines
Vehicle Speed Control 2026-09-03 · SF735-Bulletin · Service Campaign
revised field service campaign for adaptive cruise control (acc): cummins medium duty engines
Vehicle Speed Control 2026-09-03 · ICI26-013 · Other
important campaign information letter for sf735 - campaign reactivated
Suspension 2026-08-28 · FleetCom 1_X-Series HD Su · Other
fleet communications for x-series hd front suspension threaded
Showing the 6 most recent of 77 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.