2025 Temsa Ts35 problems, complaints & recalls
Safety recalls (2)
Fuel System, Diesel:delivery:hoses, Lines/Piping, And Fittings 2026-10-12 · campaign 26V669000 · 0 vehicles
Defect: Temsa is recalling certain 2024-2025 TS35 coaches. The remote fuel filter hoses may separate from the fitting, causing a fuel leak and an engine stall.
Risk: A fuel leak in the presence of an ignition source increases the risk of a fire. An engine stall increases the risk of a crash.
Fix: Cummins dealers will replace the fuel hoses, free of charge. Owner notification letters are expected to be mailed November 19, 2026. Owners may contact Cummins customer service at 1-800-286-6467 or Temsa customer service at 1-833-628-3672.
Electrical System:wiring 2025-04-29 · campaign 25V279000 · 594 vehicles
Defect: Temsa is recalling certain 2021-2025 TS30, TS35, and 2021-2026 TS45 buses equipped with a Mux5-B multiplex. The temporary bus stop valve may activate unintentionally and apply the brakes, causing them to overheat.
Risk: Brakes that overheat can increase the risk of a fire.
Fix: Temsa will inspect the multiplex, update the software, and repair the wiring harness as necessary, free of charge. Owner notification letters were mailed June 11, 2025. Owners may contact Temsa customer service at 1-833-628-3672.
Service bulletins (3)
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.
Unknown Or Other 2026-09-28 · TS35-FC-2604 · Service Bulletin/Repair Instructions
mechanic fan bracket change
Unknown Or Other 2026-09-09 · TS35-FC-2605 · Service Bulletin/Repair Instructions
solution for exhaust guard carrier bracket
Unknown Or Other 2025-05-28 · TS35-SR-2501 · Service Bulletin/Repair Instructions
ts35 mux units pin changing and diode checking bulletin
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.