RecallRepo

2021 Thor Motor Coach Four Winds Recalls

Recalls on record Updated July 2026

The 2021 Thor Motor Coach Four Winds has 9 NHTSA recall campaigns affecting an estimated 3,099 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 4 complaints with NHTSA, most often about the equipment. Last updated July 5, 2026.

Recall campaigns

EQUIPMENT 20V718000 2020-11-19 190 affected
Defect

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.

Consequence

A gas leak can increase the risk of a fire.

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.

ELECTRICAL SYSTEM 20V711000 2020-11-17 1,074 affected
Defect

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.

Consequence

Water may get into the BIM/BIR and create electrical arcing, increasing the risk of a fire.

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.

SEATS 20V458000 2020-08-05 248 affected
Defect

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…

Consequence

If the pedestal were to separate from the floor during a crash, the seat belt anchorages may fail, increasing the risk of injury.

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.

SEATS 20V444000 2020-07-29 463 affected
Defect

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…

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.

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…

ELECTRICAL SYSTEM 20V423000 2020-07-22 934 affected
Defect

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.

Consequence

Overheated wires can increase the risk of a fire.

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.

ELECTRICAL SYSTEM 20V419000 2020-07-20 63 affected
Defect

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.

Consequence

Battery cable contact with the exhaust manifold and heat shield can increase the risk of a fire.

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.

VISIBILITY 20V339000 2020-06-09 71 affected
Defect

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…

Consequence

If the window glass detaches while the vehicle is moving it could become a projectile, increasing the risk of a crash.

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.

ELECTRONIC STABILITY CONTROL (ESC) 20V303000 2020-05-27 34 affected
Defect

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…

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.

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…

POWER TRAIN 20V178000 2020-03-25 22 affected
Defect

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…

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.

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…

Complaints by component

EQUIPMENT:RECREATIONAL VEHICLE/TRAILER
1
STEERING
1
STRUCTURE:BODY
1
VEHICLE SPEED CONTROL
1
Total complaints4

What owners report

Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.

“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…”

STRUCTURE:BODY · reported 2024-08-05

“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…”

EQUIPMENT:RECREATIONAL VEHICLE/TRAILER · reported 2024-08-05

“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…”

VEHICLE SPEED CONTROL · reported 2021-04-10

“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…”

STEERING · reported 2021-04-10
Sources & methodology

Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2021 Thor Motor Coach Four Winds as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.