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Model year

2020 Thor Motor Coach Miramar

Other, gasoline, 4x2, built in United States. Owner complaints on file from Jun 25, 2021 to Aug 28, 2023.

Recall campaigns covering this model year11,554 vehicles or units across those campaigns
Owner complaints31.5 times the median 2020 other
Severity index33.32020 others average 6.4
First 24 months2Complaints in its first two years
Complaints over time

Complaints about the 2020 Thor Motor Coach Miramar peaked in 2021, with 2 filed

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

00.511.522021220222023202420252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

33% of complaints about the 2020 Thor Motor Coach Miramar name electrical system

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

Electrical system
1
Engine and cooling
1
Brakes
1
Visibility and wipers
1
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

One recall campaign covers the 2020 Thor Motor Coach Miramar

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 2020 Thor Motor Coach Miramar
CampaignFiledSubjectComponentVehiclesRemedy
19V-504Jun 30, 2019Vehicle control system software may cause the slide-out room to move unexpectedlyEquipment1,554Software update
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2020 Thor Motor Coach Miramar

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.

3 complaints on file, page 1 of 1.

  1. Filed Aug 28, 2023Failure Aug 25, 2023Wayzata, MNVisibility/wiper

    While driving on the highway at 60 MPH in a thunderstorm, the passenger windshield wiper collided with the driver's windshield wiper and became entangled with each other. I completely lost all wiper function and could no longer see the road. This was a life-threatening situation, with traffic all around us, and luckily, I was able to pull off the highway after about a quarter of a mile until the rain subsided. My wife and two grandchildren were in the RV at the time and this could have been a disaster. I called Thor this morning and they are tight-lipped about this problem happening to others, but I see in online Thor forums that even after an earlier recall, it is still happening to more recent models like mine. In my case, the splines on the passenger wiper arm are totally stripped, as are the spices on the wiper arm pivot shaft. The driver's wiper was OK after taking it off and re-aligning it, but may not hold since those splines were also partially stripped. Thor needs to take responsibility for putting in such an unreliable wiper system which is manufactured by Wexco Industries. I'm now stuck with $500 in parts (more if the driver's side also needs replacement), not including labor, to "fix" their poorly designed wiper system, not to mention the near disaster we experienced.

    NHTSA complaint 11541103
  2. Filed Jul 18, 2021Failure Jul 5, 2021Yorba Linda, CAElectrical system, Engine

    You have a Technical Service Bulletin 20-2370 issued 09 November 2020 for this vehicle, so no notice to consumers until the issue arises and their mechanic figures it out. The issue causes an extreme heat build up that melts spark plug wires, causes loss of power and/or misfiring, and could cause a vehicle fire which is not noted in your bulletin. This should have been a recall ceasing sales until affected Ford F-53s were repaired. I encountered this issue while on 38 in the San Bernardino National Forest. This was a major safety issue with the loss of power on mountain roads and potential for fire, which would likely have sparked a wildfire. I also have a 22yr old disabled son who does not ambulate quickly so the thought of trying to get him out in the event of a fire is troubling. To your questions below, there could have been a crash, fire, and/or injuries. Is that what it takes to do the right thing? I’ll provide invoices when my mechanic is done fixing it.

    NHTSA complaint 11425335
  3. Filed Jun 25, 2021Failure Feb 16, 20214,000 milesWoodinville, WAActuatorFire

    The contact owns a 2021 Thor Motor Coach Miramar RV. The contact stated while driving at 50 mph, the contact’s husband saw smoke and flames coming from underneath the front driver’s side undercarriage. The driver pulled the vehicle over to the side of the roadway and exited the vehicle and saw a fire underneath the undercarriage of the vehicle. The contact’s husband extinguished the fire with a fire extinguisher and bottles of water. No one was injured. The local fire department arrived at the scene however, there was no fire report filed. The vehicle was towed to a local dealer who inspected the vehicle and diagnosed the failure as a hydraulic line oil leak. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 4,000.

    NHTSA complaint 11422330
Source: NHTSA ODI complaints file.
Investigations

1 NHTSA investigation on file

  • PE24023 Preliminary evaluation, Structure
    Trailer Hitch Receiver Structure May Crack and Separate
    Opened Aug 14, 2024, closed Jan 16, 2026
Source: NHTSA ODI investigations file.
Service bulletins

1 manufacturer communication cover this model year

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

  • 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.
Source: NHTSA manufacturer communications files.