2025 Thor Motor Coach Quantum problems, complaints & recalls
Most-reported problem areas: Tires (1)
Safety recalls (2)
Equipment:recreational Vehicle/Trailer:lpg Systems:lines And Fittings 2025-10-17 · campaign 25V709000 · 527 vehicles
Defect: Thor Motor Coach (TMC) is recalling certain 2026 Geneva, 2025-2026 Quantum, Four Winds, Pasadena, Eddie Bauer, Chateau, Freedom Elite, and Coleman recreational vehicles. A P-clamp may not have been installed, allowing the Liquid Propane (LP) generator hose to contact the exhaust.
Risk: A LP hose that contacts the generator exhaust increases the risk of a fire.
Fix: Dealers will install a P-clamp to secure the LP hose, free of chare. Owner notification letters were mailed December 15, 2025. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000335.
Equipment:recreational Vehicle/Trailer 2025-03-20 · campaign 25V171000 · 4,251 vehicles
Defect: Thor Motor Company (TMC) is recalling certain 2023-2026 Axis, Chateau, Four Winds, 2023-2025 Coleman, Echelon, Freedom Elite, Geneva, Outlaw, Quantum, Vegas, 2025 Eddie Bauer, Freedom Traveler, Pasadena, and 2024-2025 Magnitude motorhomes. The slide-Out room can be deployed without the parking brake engaged, allowing the room to extend while the vehicle is in motion.
Risk: A slide-Out room that extends unexpectedly increases the risk of a crash.
Fix: Dealers will replace the park brake harness, free of charge. Owner notification letters were mailed April 28, 2025. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000325.
What owners report
2026-07-25 · Tires“three original equipment hankook dynapro ht tires developed belt-related failures at approximately 6,000 miles of use during a road trip in june 2026. on [xxx], while driving in tennessee, we noticed a vibration that gradually increased in intensity. we stopped for inspection at c&d tire & service in athens, tn, which found a "bad belt" in the lef…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.