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Thor Motor Coach Quantum Recall 25V171: Slide-out room can extend while motorhome is moving

NHTSA campaign 25V171, reported March 20, 2025, 4,251 vehicles potentially affected.

What this recall means for you

Certain Thor motorhomes can have their slide-out room deployed while the parking brake is not engaged. If the room extends while the vehicle is in motion, it can increase the risk of a crash.

The free remedy is replacement of the park brake harness by an authorized dealer. Owner notification letters were mailed April 28, 2025. Owners with questions can contact Thor Motor Company customer service at 1-877-855-2867, referencing recall RC000325. You can also check your vehicle identification number (VIN) for open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 25V171Thor Motor Coach
Component
EQUIPMENT:RECREATIONAL VEHICLE/TRAILER
Problem
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.
Remedy
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.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 888-327-4236 (TTY 888-275-9171) or go to nhtsa.gov.

Affected vehicles

Thor Motor Coach Axis2023202420252026
Thor Motor Coach Chateau2023202420252026
Thor Motor Coach Coleman202320242025
Thor Motor Coach Echelon202320242025
Thor Motor Coach Eddie Bauer2025
Thor Motor Coach Four Winds2023202420252026
Thor Motor Coach Freedom Elite202320242025
Thor Motor Coach Freedom Traveler2025
Thor Motor Coach Geneva202320242025
Thor Motor Coach Magnitude20242025
Thor Motor Coach Outlaw202320242025
Thor Motor Coach Pasadena2025
Thor Motor Coach Quantum202320242025
Thor Motor Coach Vegas202320242025