AutoStatsIQ
Data through Oct 2026
Model year

2021 Thor Motor Coach Quantum

Body and fuel not decoded. Owner complaints on file from no date to no date.

Recalls (4)Complaints (0)Investigations (0)Bulletins (6)
Recall campaigns covering this model year41,634 vehicles or units across those campaigns
Owner complaints0Not enough peers on file
Severity indexNoneCrash, fire, injury or death per 100
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2021 Thor Motor Coach Quantum by year filed

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

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

Complaints by component

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

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Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

4 recall campaigns cover the 2021 Thor Motor Coach Quantum

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 2021 Thor Motor Coach Quantum
CampaignFiledSubjectComponentVehiclesRemedy
20V-711Nov 17, 2020BIM (Battery Isolation Manager)/BIR (Battery Isolation Relay) is not watertight when exposed to engine compartment heatElectrical system1,074Part replacement
20V-444Jul 29, 2020Wiring harnesses for the front seats may have been routed incorrectly and could become jammed and damaged in the swivel seat framesAirbags463Repair or modification
20V-419Jul 20, 2020Battery cable may not have been properly secured within the chassis rail, which can cause it to contact the exhaust manifold and heat shieldElectrical system63Repair or modification
20V-303May 27, 2020Wire 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…Electrical system34Repair or modification
Source: NHTSA ODI recalls file.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2021 Thor Motor Coach Quantum

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.

0 complaints on file.

    Source: NHTSA ODI complaints file.
    Investigations

    NHTSA has not opened an investigation on this model year

    Source: NHTSA ODI investigations file.
    All investigations
    Service bulletins

    6 manufacturer communications cover this model year

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

    • RC000220SAOwner Jun 9, 2021 · Service Bulletin/Repair Instructions
      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 th…
    • RC000220SADealer Jun 9, 2021 · Service Bulletin/Repair Instructions
      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 th…
    • RC000212SAOwner Feb 18, 2021 · Service Bulletin/Repair Instructions
      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 cond…
    • RC000212SADealer Feb 18, 2021 · Service Bulletin/Repair Instructions
      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 cond…
    • TSB 21-01 Mar 24, 2021 · Service Bulletin/Repair Instructions
      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 o…
    • TSB 20-01 Mar 24, 2021 · Service Bulletin/Repair Instructions
      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 o…
    Source: NHTSA manufacturer communications files.
    About service bulletins