The Used Car Index

2021 Thor Motor Coach Four Winds problems

NHTSA lists 2 complaints for the 2021 Thor Motor Coach Four Winds, 0 of them mention a crash and 0 mention a fire. 0 complaints mention an injury, with 0 injuries and 0 deaths reported.

Data build 2026-10-09.

NHTSA lists this vehicle as THOR MOTOR COACH FOUR WINDS.

At a glance

Complaints
2
With crash
0
With fire
0
With injury (complaints)
0
Injuries
0
Deaths
0
Recalls
9
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
1,074
Investigations
0
Open investigations
0
Manufacturer communications
7

Complaints per 100k sold unavailable. No sales source is available for this record.

Where the complaints are

Top systems
SystemComplaintsShare of this vehicle's complaints
EQUIPMENT150.0%
STEERING150.0%
STRUCTURE150.0%
VEHICLE SPEED CONTROL150.0%
Top subsystems
SystemSubsystemComplaints
EQUIPMENTRECREATIONAL VEHICLE/TRAILER1
STRUCTUREBODY1

One complaint can name several systems, so shares can add to more than 100 percent.

Model-generated complaint tags

These labels are model-generated, not NHTSA data.

Failure modes
LabelCountShare of taggedMean confidence
electrical electronic150.0%1.00
mechanical failure150.0%0.92
Severities
LabelCountShare of taggedMean confidence
low150.0%0.73
moderate150.0%0.75

Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 2 tagged complaints of 2 complaints (100.0%).

Confidence is the model's own probability for the label it chose (0 to 1), not accuracy.

Model-generated labels on tagged complaints only. Model years 2013 and newer are tagged in full; 2012 in part (see tagged_share); earlier model years have no tags. NHTSA's own flags remain separate in the complaints block.

Recalls

See new recalls and investigations this week.

9 recalls.

20V718000

Date: 2020-11-19. Systems: EQUIPMENT.

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.

Do not drive: No. Park outside: No.

20V711000

Date: 2020-11-17. Systems: ELECTRICAL SYSTEM.

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.

Do not drive: No. Park outside: No.

20V458000

Date: 2020-08-05. Systems: SEAT BELTS, SEATS.

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 comply with the requirements of Federal Motor Vehicle Safety Standard number 207, "Se (excerpt)

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

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. (excerpt)

Do not drive: No. Park outside: No.

20V444000

Date: 2020-07-29. Systems: AIR BAGS, ELECTRICAL SYSTEM, SEATS.

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 for the front seats may have been routed incorrectly and could become jammed and da (excerpt)

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. (excerpt)

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. (excerpt)

Do not drive: No. Park outside: No.

20V423000

Date: 2020-07-22. Systems: ELECTRICAL SYSTEM.

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.

Do not drive: No. Park outside: No.

20V419000

Date: 2020-07-20. Systems: ELECTRICAL SYSTEM.

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.

Do not drive: No. Park outside: No.

20V339000

Date: 2020-06-09. Systems: VISIBILITY.

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 out.

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.

Do not drive: No. Park outside: No.

20V303000

Date: 2020-05-27. Systems: ELECTRICAL SYSTEM, ELECTRONIC STABILITY CONTROL (ESC), SERVICE BRAKES, HYDRAULIC.

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 system (ABS). (excerpt)

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. (excerpt)

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. (excerpt)

Do not drive: No. Park outside: No.

20V178000

Date: 2020-03-25. Systems: POWER TRAIN.

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 rear axle assembly and a driveshaft separation.

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 number for this recall is RC000188.

Do not drive: No. Park outside: No.

Investigations

0 investigations; 0 open.

Manufacturer communications

7 manufacturer communications.

Communications by system
SystemCount
ELECTRICAL SYSTEM2
ENGINE AND ENGINE COOLING2
SERVICE BRAKES2
WHEELS1

10197979

Date: 2021-06-09. Type: Service Bulletin/Repair Instructions. Systems: SERVICE BRAKES.

MBAG has determined that on certain model year 2019-2020 Sprinter vehicles, the retaining washer on the bolt that connects the brake pedal to its bearing block could come loose. If the retaining washer were to come loose, over time it could detach from the bolt, and in the worst case and with ongo

10197980

Date: 2021-06-09. Type: Service Bulletin/Repair Instructions. Systems: SERVICE BRAKES.

MBAG has determined that on certain model year 2019-2020 Sprinter vehicles, the retaining washer on the bolt that connects the brake pedal to its bearing block could come loose. If the retaining washer were to come loose, over time it could detach from the bolt, and in the worst case and with ongo

10197974

Date: 2021-04-01. Type: Service Bulletin/Repair Instructions. Systems: WHEELS.

According to the tire manufacturer, Continental Tire the Americas (CTA), the affected tires may have an overcure condition and CTA has initiated a safety recall for these tires. According to CTA, overcured tires may experience a carcass break in the sidewall with sudden air loss or could develop a

10189723

Date: 2021-03-24. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

From November 2020 to February 2021, units produced at Plant 250 have a wire missing that would cause the 120VAC load shedding to not work properly. This affects model year 2021 31E, 31EV, 31W, 31WV, SL31, SE31, LF31, and WS31 floor plans with the 2 A/C option

10189724

Date: 2021-03-24. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

From November 2020 to February 2021, units produced at Plant 250 have a wire missing that would cause the 120VAC load shedding to not work properly. This affects model year 2021 31E, 31EV, 31W, 31WV, SL31, SE31, LF31, and WS31 floor plans with the 2 A/C option

10197904

Date: 2021-02-18. Type: Service Bulletin/Repair Instructions. Systems: ENGINE AND ENGINE COOLING.

On your vehicle, it may be possible that the engine cover insulation does not fully extend to the perimeter of the factory engine cover. In addition, vehicles built on a Ford chassis may have higher engine compartment temperatures during certain idle conditions. This may result in elevated tempera

10197965

Date: 2021-02-18. Type: Service Bulletin/Repair Instructions. Systems: ENGINE AND ENGINE COOLING.

On your vehicle, it may be possible that the engine cover insulation does not fully extend to the perimeter of the factory engine cover. In addition, vehicles built on a Ford chassis may have higher engine compartment temperatures during certain idle conditions. This may result in elevated tempera

Notes on this record

  • Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
  • System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
  • Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
  • A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.

Other names NHTSA uses

None listed.

Matched NHTSA models

Matched labels and complaints
NHTSA model labelComplaints
FOUR WINDS2

Same model, other years

All model years | All Thor Motor Coach models

Other Thor Motor Coach models, 2021

Sources

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