NHTSA vehicle safety data
2021 Thor Motor Coach Four Winds Recalls & Complaints
The 2021 Thor Motor Coach Four Winds has 9 NHTSA recall campaigns and 2 owner complaints on file as of November 3, 2026. Recall repairs are usually free at an authorized Thor Motor Coach dealer.
NHTSA recall and complaint data for the 2021 Thor Motor Coach Four Winds. Recall data is refreshed daily from NHTSA.
2021 Thor Motor Coach Four Winds owner complaints
Owners have filed 2 complaints with NHTSA about the 2021 Thor Motor Coach Four Winds, describing incidents dated April 10, 2021 to August 5, 2024.
Most-cited components
- Equipment 1 complaint
- Steering 1 complaint
- Structure 1 complaint
- Vehicle Speed Control 1 complaint
Newest complaints
ODI #11630380 · Filed
My wife and I were driving Westbound on [XXX] in Washington state just East of Seattle when the driver side slide out went out on its own while my wife was sleeping on the couch. After taking it to the center it was purchased at they told me it was a failure of the safety retainers on the locking…
ODI #11422162 · Filed
When driving with cruise control on and encounter a slight side wind or even a grade change in road surface where the coach is not perfectly level the cruise will quit and hill decent light comes on, will not rest until it is shut off for 10 min or so. It is a issue with steering angle sensor, I can…
Cook Stove Saddle Valves may Leak Gas
NHTSA #20V718000 · Equipment — Appliance — Oven/Stove/Cooktop · NHTSA notice
Reported November 19, 2020 · Thor Motor Coach
Potentially affected: 190 vehicles
Repair completion: 100% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Thor Motor Coach campaign RC000207 · Owners notified January 14, 2021
Defect description
Thor Motor Coach (TMC) is recalling certain 2021 Four Winds motorhomes, equipped with Dometic 3 burner cooking stoves. The saddle valve securing bolt may be overtightened, possibly damaging the o-ring seal and causing a continuous gas leak.
Safety consequence
A gas leak can increase the risk of a fire.
Manufacturer remedy
TMC will notify owners, and dealers will install a remedy kit of gaskets, washers, thread locker bolts, and two round orange labels, free of charge. The recall began January 14, 2021. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000207.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
BIM/BIR Is Not Watertight
NHTSA #20V711000 · Electrical System · NHTSA notice
Reported November 17, 2020 · Thor Motor Coach
Potentially affected: 1,074 vehicles
Repair completion: 66.48% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Thor Motor Coach campaign RC000206 · Owners notified January 13, 2021
Defect description
Thor Motor Coach (TMC) is recalling certain 2020-2021 Daybreak, Four Winds, Chateau, Freedom Elite, Quantum motorhomes built on a Chevrolet chassis. The BIM (Battery Isolation Manager)/BIR (Battery Isolation Relay) is not watertight when exposed to engine compartment heat.
Safety consequence
Water may get into the BIM/BIR and create electrical arcing, increasing the risk of a fire.
Manufacturer remedy
TMC will notify owners, and dealers will replace the BIM/BIR with a Trombetta solenoid, free of charge. The recall began January 13, 2021. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000206.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Incorrect Diameter Bolts Installed/FMVSS 207, 210
NHTSA #20V458000 · Seat Belts · NHTSA notice
Reported August 5, 2020 · Thor Motor Coach
Potentially affected: 248 vehicles
Repair completion: 35.92% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Thor Motor Coach campaign RC000202 · Owners notified September 14, 2020
Defect description
Thor Motor Coach (TMC) is recalling certain 2020-2021 Daybreak 23DB, 2018-2021 Four Winds 23U, and 2018-2021 Chateau 23U motorhomes. Bolts of the wrong size were used to secure the barrel chair pedestals, allowing the pedestal to separate from the floor in the event of a crash. As such, these motorhomes fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 207, "Seating Systems" and number 210, "Seat Belt Assembly Anchorages."
Safety consequence
If the pedestal were to separate from the floor during a crash, the seat belt anchorages may fail, increasing the risk of injury.
Manufacturer remedy
TMC will notify owners, and dealers will inspect the pedestal bolt size, correcting the hardware as necessary, free of charge. This recall began September 14, 2020. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000202.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Front Seat Wiring Harnesses Routed Incorrectly
NHTSA #20V444000 · Air Bags · NHTSA notice
Reported July 29, 2020 · Thor Motor Coach
Potentially affected: 463 vehicles
Thor Motor Coach campaign RC000200 · Owners notified August 13, 2020
Defect description
Thor Motor Coach (Thor) is recalling certain 2020-2021 Daybreak, Four Winds, Quantum, Delano, Tiburon, Chateau and Freedom Elite motorhomes and 2020 Gemini, Chateau Citation, Compass, Siesta, and Synergy motorhomes built on Sprinter Van chassis (platform 970 (VS30), equipped with swivel seats. The wiring harnesses for the front seats may have been routed incorrectly and could become jammed and damaged in the swivel seat frames.
Safety consequence
If the wiring harness is damaged, the side air bag within the seat may deploy inadvertently or not deploy as designed in the event of a crash, increasing the risk of injury to vehicle occupants.
Manufacturer remedy
Thor will notify owners, and Mercedes-Benz dealers will inspect the wire harness routing for both front seats and will repair the wiring and add clips or cable ties as needed, free of charge. This recall began August 13, 2020. Owners may contact Thor customer service at 1-877-855-2867 Mercedes-Benz customer service at 1-877-762-8267. Thor's number for this recall is RC000200.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Converter Breaker May Cause Fire
NHTSA #20V423000 · Electrical System — Wiring · NHTSA notice
Reported July 22, 2020 · Thor Motor Coach
Potentially affected: 934 vehicles
Repair completion: 64.35% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Thor Motor Coach campaign RC000199 · Owners notified September 18, 2020
Defect description
Thor Motor Coach (TMC) is recalling certain 2019-2021 Freedom Elite, and 2021 Four Winds motorhomes. A 100amp converter breaker was incorrectly installed at the battery tray when a 70amp breaker is required, possibly resulting in the wiring connected to the breaker overheating.
Safety consequence
Overheated wires can increase the risk of a fire.
Manufacturer remedy
TMC will notify owners, and dealers will replace the converter breaker with one of the correct amperage if needed, free of charge. This recall began September 18, 2020. Owners may contact TMC customer service at 1-855-2867. TMC's number for this recall is RC000199.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Loose Battery Cables May Cause Fire
NHTSA #20V419000 · Electrical System — 12V/24V/48V Battery — Cables · NHTSA notice
Reported July 20, 2020 · Thor Motor Coach
Potentially affected: 63 vehicles
Repair completion: 82.54% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Thor Motor Coach campaign RC000197 · Owners notified September 11, 2020
Defect description
Thor Motor Coach (TMC) is recalling certain 2021 Daybreak, Four Winds, Quantum, Chateau, and Freedom Elite motorhomes built on the 2020 Ford E-Series chassis. The battery cable may not have been properly secured within the chassis rail, which can cause it to contact the exhaust manifold and heat shield.
Safety consequence
Battery cable contact with the exhaust manifold and heat shield can increase the risk of a fire.
Manufacturer remedy
TMC will notify owners, and dealers will inspect the routing of the battery cable. If needed the cable will be re-routed and properly secured, free of charge. This recall began September 11, 2020. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000197.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Frameless Window Glass Panels May Detach
NHTSA #20V339000 · Visibility — Glass, Side/Rear · NHTSA notice
Reported June 9, 2020 · Thor Motor Coach
Potentially affected: 71 vehicles
Repair completion: 100% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Thor Motor Coach campaign RC000192 · Owners notified July 10, 2020
Defect description
Thor Motor Coach (TMC) is recalling certain 2020-2021 ACE, 2021 Four Winds and 2020 Gemini, Axis, Compass, Delano, Windsport, Hurricane, Outlaw, and Vegas motorhomes. The adhesive bond between the glass and the metal hinge frame of the frameless windows may fail which would then allow the glass to detach and fall out.
Safety consequence
If the window glass detaches while the vehicle is moving it could become a projectile, increasing the risk of a crash.
Manufacturer remedy
TMC will notify owners, and dealers will inspect the frameless windows for proper adhesive bond strength, replacing the windows as necessary, free of charge. The recall began July 10, 2020. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000192.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Wire Harness May Chafe and Damage Circuits
NHTSA #20V303000 · Electronic Stability Control (ESC) · NHTSA notice
Reported May 27, 2020 · Thor Motor Coach
Potentially affected: 34 vehicles
Thor Motor Coach campaign RC000189 · Owners notified June 25, 2020
Defect description
Thor Motor Coach (TMC) is recalling certain 2020-2021 Quantum, Chateau and Four Winds, and 2020 Vegas and Axis motorhomes built on a Ford E-series chassis. A wire harness in the rear of the vehicle may contact the vehicle frame, resulting in damage to the circuits that support the fuel pump and the anti-lock braking system (ABS).
Safety consequence
Damage to the fuel pump circuit in the wiring harness could result in an unexpected engine stall. Damage to the ABS wiring can lead to reduction of ABS functionality and a loss of roll stability control (RSC) functionality. These scenarios increase the risk of a crash.
Manufacturer remedy
TMC will notify owners, and Ford dealers will inspect the wire harness for damage. If no damage is found, dealers will apply anti-abrasion tape over the area and ensure clearance to surrounding components. If damage is found, dealers will splice in new wire and apply anti-abrasion tape over the area and ensure clearance to surrounding components. All services will be performed free of charge. The recall The recall began June 25, 2020., 2020. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000189.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Driveshaft May Separate From Rear Axle
NHTSA #20V178000 · Power Train — Driveline — Differential Unit · NHTSA notice
Reported March 25, 2020 · Thor Motor Coach
Potentially affected: 22 vehicles
Thor Motor Coach campaign RC000188 · Owners notified March 19, 2020
Defect description
Thor Motor Coach (TMC) is recalling certain 2020 Chateau 31W and 31WV, Quantum KW29 and LF31, Vegas 24.1 and Axis 24.1 motorhomes and 2020-2021 Four Winds 24F, 28Z, and 31E motorhomes built on a Ford chassis. The rear axle differential may have an insufficient amount of fluid, possibly resulting in a failure of the rear axle assembly and a driveshaft separation.
Safety consequence
If the driveshaft separates, there may be a loss of drive, increasing the risk of crash. Additionally, if the parking brake is not applied, unintended vehicle movement can occur if the transmission is left in Park, increasing the risk of injury or crash.
Manufacturer remedy
Ford will notify owners, and Ford or Lincoln dealers will inspect the rear axle differential fluid level and adjust it, or replace the rear axle as necessary, free of charge. The recall is began May 22, 2020. Owners may contact Ford customer service at 1-866-436-7332 or TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000188.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Other Thor Motor Coach Four Winds model years
Check your 2021 Thor Motor Coach Four Winds VIN
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