2024 Thor Motor Coach Quantum
Problems, recalls and owner-reported issues
Electrical system is the leading concern among 2 owner complaints filed for this model year. This is the highest complaint count among 6 Quantum model years with reports.
What owners report most often
Recalls and investigations
Equipment, recreational vehicle/trailerMar 20, 2025
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.
A slide-Out room that extends unexpectedly increases the risk of a crash.
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.
Campaign 25V171000 on NHTSA.gov
Representative owner complaints
2 reports, newest first.
Power train, Electrical system, Engine and engine cooling, Oct 28, 2025
The contact owns a 2024 Thor Quantum RV. The contact stated that while parked with the engine idling, the RV started to vibrate and shake before shutting off. The contact was unable to restart the RV. The RV was later towed to the local mechanic. The local mechanic diagnosed the RV and determined that the fuel pump control module had failed due to condensation from the A/C drainage pipe leaking onto the module. The module was replaced, and the RV was repaired. The contact was informed that due to the design location of the A/C drainage pipe being directly over top of the fuel pump control module, the failure would probably recur. Additionally, while driving at various speeds, the RV was pulling to the right. The RV was taken to the local mechanic, who was unable to properly align the steering wheel due to a manufacturer's defect. No further information was available. The manufacturer was notified of the failures. The failure mileage was 300.
Electrical system, Exterior lighting, Other or unspecified, Jun 11, 2025
Drove from Gibson Louisiana to Abita Springs Ocean Canyon RV park. Upon arrival we had a buzzer alert going off under dash, we then parked to RV. Tried to put jacks down, did not respond, tried 12v lights did not work, tried slides, again no response. We then plugged in and were able to get jacks and slides out, some lights worked. Still alarm under dash, checked 12 coach battery, almost dead. Called a mobile RV tech, 2 1/2 hours later, he found a ground bolt had come off with 3 grounding wires on it. Tech advised that bolt was only tacked on one side, my Warranty company said a original technician fault and not covered. Talked to Thor later, they advised that is how it is attached, advised warranty company and they still denied. Told Thor that was very poor workmanship for a company trying to improve their standing. This cost me $358.05 out of pocket and time from Rving.