Model year

2018 Thor Motor Coach Four Winds

Other, gasoline, built in United States. Owner complaints on file from Oct 20, 2017 to Sep 12, 2025.

Recall campaigns covering this model year5113k vehicles or units across those campaigns
Owner complaints42.0 times the median 2018 other
Severity index0.02018 others average 4.1
First 24 months2Complaints in its first two years
Complaints over time

Complaints about the 2018 Thor Motor Coach Four Winds peaked in 2017, with 1 filed

Owner complaints about this model year, by the year they were filed with NHTSA.

00.250.50.75120171201820192020202120222023202420252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

50% of complaints about the 2018 Thor Motor Coach Four Winds name suspension

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

Suspension
2
Wheels
2
Fuel system
1
Steering
1
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

5 recall campaigns cover the 2018 Thor Motor Coach Four Winds

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2018 Thor Motor Coach Four Winds
CampaignFiledSubjectComponentVehiclesRemedy
19V-240Mar 27, 2019Backup camera displays may revert back to the factory default settings which may cause the camera image to be reversedVisibility and wipers110Repair or modification
18V-741Oct 19, 2018Liquid propane (LP) hose may not have adequate space between the floor and the metal plate on the refrigerator, causing damage to the hose and…Equipment1,384Not stated
17V-758Nov 22, 2017See a list of the affected trailer models at: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17V758-5764.pdfEquipment110,400Part replacement
17V-634Oct 9, 2017Cargo carrying capacity (CCC) label on these vehicles may indicate an incorrect water capacity for the water heater/fresh water tankEquipment507Label or owner notice
17V-522Aug 24, 2017Liquid propane (LP) hose may sag and become pinched between the frame and the leaf spring u-bolts, potentially damaging the hose and causing a…Equipment860Repair or modification
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2018 Thor Motor Coach Four Winds

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

4 complaints on file, page 1 of 1.

  1. Filed Sep 12, 2025Failure Jun 1, 202570,000 milesWaldo, FLFuel system, Fuel pump

    The contact owns a 2018 Thor Motor Coach Four Winds Motorhome constructed on a 2017 Ford E-350 Chassis and hauling a 17-foot cargo trailer. The contact stated that while traveling to another state in the mountains, the RV suddenly began to buck and lost motive power and stalled on several occasions. The contact was able to pull over safely. There were no warning lights illuminated. The RV was taken to an independent mechanic who determined that the fuel module needed to be replaced. The RV was repaired, but the failure reoccurred. A mobile RV mechanic determined that the fuel module needed to be replaced. The RV was repaired, but the failure persisted. The RV stalled, leaving the occupants stranded for several hours, but eventually restarted. The RV was taken to the local dealer, where it was determined that the OEM fuel module needed to be replaced but eventually used an aftermarket fuel module. The RV was towed to another local dealer, Harry Robinson Sallisaw Ford (2300 S Kerr Blvd, Sallisaw, OK 74955) where it was determined that the fuel module, fuel pump, and PCM needed to be replaced. The vehicle was repaired, but the failure persisted, and the RV was towed back to the same local dealer. The manufacturer was contacted, who confirmed there was no warranty coverage on the RV for the failure. The failure mileage was approximately 70,000.

    NHTSA complaint 11686957
  2. Filed Oct 11, 2021Failure Sep 14, 2021Issaquah, WAWheels

    Twice! Wheel rim developed a hairline crack in the weld adjacent to the valve stem. 2-times, different rims - both on inside dually rear - one left and one right side. The first happened on our first long trip in 2019. The second time was on the next long trip of 2021. Internet forums are showing that this is a rather "COMMON" issue! Plus, Mercedes has recorded lawsuits with similar rim weld failures on other Mercedes vehicles. I get NO sympathy or compensation through Mercedes or Thor - They each kick the can to the other, and the consumer is left at risk. Human safety is at great risk!

    NHTSA complaint 11436297
  3. Filed Jul 2, 2018Failure Aug 2, 2017Spring Creek, NVSuspension

    INCORRECT WEIGHT DISTRIBUTION. BACK OF VICHICLE TO LOW,WHICH CAUSES FRONT TO BE TO HIGH. UNABLE TO MAINTAIN LANE WHEN BENG PASSED BY A BIG RIG OR SIDE GUST OF WIND. VICHICLE VERY UNSTABLE,SHOULD NOT HAVE BEEN SOLD IN THAT CONDITION.

    NHTSA complaint 11105074
  4. Filed Oct 20, 2017Failure Sep 7, 2017Port ST Lucie, FLSteering, Suspension, Wheels

    ONCE YOU GO ABOVE 40 MPH THE STEARING WHEEL STARTS TO SHIMMY AND THE FRONT END VIBRATES. IT TAKES ALL YOUR EFFORT TO HOLD IT ON THE ROAD UNTIL YOU REACH THE SPEED OF 70 MPH OR MORE. THIS HAPPENS WHILE TRAVELING ON MAJOR HIGHWAYS LIKE I95.

    NHTSA complaint 11035145
Source: NHTSA ODI complaints file.
Investigations

NHTSA has not opened an investigation on this model year

Source: NHTSA ODI investigations file.
Service bulletins

4 manufacturer communications cover this model year

Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.

  • RC000218SADealer Mar 25, 2021 · Service Bulletin/Repair Instructions
    us. On certain model year 2012– 2018 5-ton Sprinter vehicles that were upfitted into campers or recreational vehicles (“RVs”), one or more of the rear-wheel speed sensors may experience an electrical failure, which potentially could lead to a disablement…
  • RC000210SAOwner Jan 18, 2021 · Service Bulletin/Repair Instructions
    Model/Model Year to Add: 2017 Chateau 2017-2018 Chateau Citation 2017 Four Winds 2017-2019 Gemini 2017-2019 Quantum 2017-2019 Four Winds Siesta 2017-2019 Synergy 2018 Compass 2018 Freedom Elite 2021 Sanctuary 2021Tranquility PLEASE NOTE- Due to being unawar…
  • LTR 120519 Dec 5, 2019 · Service Bulletin/Repair Instructions
    This letter stated that there were no Service Bulletins or Technical Service Bulletins issued for the month of November, 2019.
  • LTR 110317 Nov 3, 2017 · Service Bulletin/Repair Instructions
    This letter stated that there was one (1) Service Notification issued for the month of October, 2017.
Source: NHTSA manufacturer communications files.