2021 Thor Motor Coach Quantum: recalls and complaints
Official NHTSA recall campaigns and consumer complaints for one RV model year, with the notice text and links to the source.
Key facts
- The 2021 Thor Motor Coach Quantum has 4 NHTSA recall campaigns that list this model year.
- It is mapped to the Mercedes-Benz Sprinter chassis, so 18 chassis recalls are shown as inherited.
- 0 equipment recalls are linked to it by reviewed rules.
- NHTSA holds 0 consumer complaints for this model year. Complaints are unverified reports, not confirmed failures.
- The latest campaign was received on December 13, 2024, 645 days before the NHTSA release of September 19, 2026.
- RV class: Class C. Brand owner in this site's reference table: Thor Industries (high confidence).
NHTSA records released through September 19, 2026; Transport Canada records through September 19, 2026. The absence of a recall in this dataset does not establish that a vehicle is safe.
Recall campaigns
22 campaigns in total: 4 listed for this model year, 18 inherited from the chassis and 0 equipment. Remedy text is quoted from the official notice; open the full notice for the whole text.
| Campaign | Received | Component | Summary | Remedy (official text) | Type | Sources |
|---|---|---|---|---|---|---|
| 20V711000 | November 17, 2020 | Electrical System | 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… | 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… | Vehicle | Full notice NHTSA |
| 20V444000 | July 29, 2020 | Seats | 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… | 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… | Vehicle | Full notice NHTSA |
| 20V419000 | July 20, 2020 | Electrical System | 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… | 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… | Vehicle | Full notice NHTSA |
| 20V303000 | May 27, 2020 | Electronic Stability Control (ESC) | 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,… | 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… | Vehicle | Full notice NHTSA |
| Campaign | Received | Component | Summary | Remedy (official text) | Type | Link basis | Sources |
|---|---|---|---|---|---|---|---|
| 24V930000 | December 13, 2024 | Electrical System | Daimler Vans USA, LLC (DVUSA) is recalling certain 2019-2022 Mercedes-Benz Sprinter vehicles. The instrument cluster illumination may not be adjustable and appear too bright in certain lighting conditions. As such, these vehicles… | Dealers will update the instrument cluster software, free of charge. Owner notification letters were mailed January 31, 2025. Owners may contact DVUSA customer service… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 23V876000 | December 21, 2023 | Structure | Daimler Vans USA, LLC (DVUSA) is recalling certain 2019-2023 Mercedes-Benz Sprinter and 2019-2021 Freightliner Sprinter vehicles. The partition wall may be missing bolts, allowing the wall to detach during a crash. | Dealers will inspect and secure the partition wall as necessary, free of charge. Owner notification letters are expected to be mailed February 16, 2024. Owners may… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 23V875000 | December 21, 2023 | Structure | Daimler Vans USA, LLC (DVUSA) is recalling certain 2019-2021 Mercedes-Benz Sprinter and Freightliner Sprinter vehicles. The longitudinal frame members may be missing reinforcement fasteners, reducing vehicle stability and… | Dealers will inspect and repair the frame members as necessary, free of charge. Owner notification letters were mailed March 4, 2024. Owners may contact DVUSA customer… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 23V806000 | December 1, 2023 | Structure | Daimler Vans USA, LLC (DVUSA) is recalling certain 2021-2023 Mercedes-Benz Sprinter and 2021 Freightliner Sprinter vehicles. The topcoat paint formula may cause the windows and interior lashing rails to be insufficiently bonded… | Dealers will inspect the paint adhesion and repair it as necessary, free of charge. Depending on the extent of any damage, DVUSA may offer to repurchase the vehicle.… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 23V444000 | June 26, 2023 | Fuel System, Gasoline | Daimler Vans USA, LLC (DVUSA) is recalling certain 2021 Freightliner Sprinter and 2021-2023 Mercedes-Benz Sprinter and Metris vehicles. The fuel pump may shutdown, which can result in a loss of drive power. | Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed November 1, 2023. Owners may contact DVUSA customer service at 1-877-762-8267.… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 23V204000 | March 24, 2023 | Electrical System | Daimler Vans USA, LLC (DVUSA) is recalling certain 2019-2022 Mercedes-Benz Sprinter and 2019-2021 Freightliner Sprinter vehicles. The instrument cluster may fail to display any information when the vehicle is started. | Dealers will update the instrument cluster software on the affected vehicles, free of charge. Owner notification letters were mailed May 5, 2023. Owners may contact… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 22V796000 | October 21, 2022 | Power Train | Daimler Vans USA, LLC (DVUSA) is recalling certain 2019-2022 Mercedes-Benz Sprinter and Freightliner Sprinter vehicles equipped with a manual parking brake and 7-speed automatic transmission. The guide bushing on the parking pawl… | Dealers will update the software of the electronic stability, transmission control, direct select module, and electronic ignition switch control units, free of charge.… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 22V491000 | July 11, 2022 | Electrical System | Daimler Vans USA, LLC (DVUSA) is recalling certain 2021 Mercedes-Benz Sprinter 2500 vehicles. The generator wiring harness may be incorrectly connected to the electric power steering, which can result in an electrical surge. | Dealers will inspect and correct the wiring harness connection, as necessary, free of charge. Owner notification letters were mailed August 10, 2022. Owners may contact… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 22V360000 | May 20, 2022 | Communication | Daimler Vans USA, LLC (DVUSA) is recalling certain 2019-2021 Freightliner Sprinter, Mercedes-Benz Metris, and Mercedes-Benz Sprinter vehicles. An error in the communication module's SIM card software can cause a mobile network… | The communication module software will be updated through an Over-the-Air (OTA) update, or by a dealer, free of charge. Owner notification letters were mailed October… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 22V281000 | April 27, 2022 | Back Over Prevention | Daimler Vans USA, LLC (DVUSA) is recalling certain 2019-2021 Freightliner Sprinter and Mercedes-Benz Sprinter vehicles. The rearview camera may not display the rearview image due to a software error. As such, these vehicles fail… | Dealers will update the rearview camera software, free of charge. Owner notification letters were mailed July 20, 2022. Owners may contact DVUSA customer service at… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 22V131000 | March 8, 2022 | Suspension | Daimler Vans USA, LLC. (DVUSA) is recalling certain 2021 Mercedes-Benz Sprinter vehicles. The shim on the torsion bar was installed incorrectly during assembly. | Dealers will correct the position of the shim and replace the torsion bar linkages, free of charge. Owner notification letters were mailed August 16, 2022. Owners may… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 22V073000 | February 9, 2022 | Equipment: Other | Daimler Vans USA, LLC (DVUSA) is recalling certain 2021 Mercedes-Benz Sprinter vehicles. The gross vehicle weight rating (GVWR) may be improperly stated on the tire and loading label. As such, these vehicles fail to comply with… | Dealers will inspect and replace, as necessary, the tire and loading information label. Additionally, tires will be inspected for excessive wear and replaced as… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 21V934000 | December 1, 2021 | Structure | Daimler Vans USA, LLC (DVUSA) is recalling certain 2021 Mercedes-Benz Sprinter vehicles. The spring-loaded rear step bolt fasteners were not properly tightened. | Dealers will tighten the bolt fasteners and replace the console and attaching hardware, free of charge. Owners notification letters were mailed February 11, 2022. Owners… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 21V933000 | December 1, 2021 | Service Brakes, Hydraulic | Daimler Vans USA, LLC (DVUSA) is recalling certain 2021 Mercedes-Benz Sprinter and Freightliner Sprinter vehicles. The front axle fender liner and brake hose may be too close, allowing the fender liner to contact and damage the… | Dealers will inspect the condition and clearance of the brake hose, modify the fender liner trim, and replace the brake hose as necessary, free of charge. Owner… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 21V779000 | October 6, 2021 | Electrical System | Daimler Vans USA, LLC (DVUSA) is recalling certain 2021 Mercedes-Benz Sprinter vehicles. A cable duct may drop out of place due to unlatched engagement hooks inside the battery case. This may cause the starter-generator wiring… | Dealers will replace the engagement hooks on the affected cable duct with expanding rivets, free of charge. The recall began on November 2, 2021. Owners may contact… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 21V513000 | July 7, 2021 | Seat Belts | Daimler Vans USA, LLC (DVUSA) is recalling certain 2021 Mercedes-Benz Sprinter, Metris, and Freightliner Sprinter vehicles equipped with Automatic Locking Retractor (ALR) seat belt assemblies. The seat belt automatic locking… | Dealers will inspect and replace the seat belt assemblies, as necessary, free of charge. Owner notification letters were mailed on December 21, 2021. Owners may contact… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 21V411000 | June 2, 2021 | Electrical System | Daimler Vans USA, LLC (DVUSA) is recalling certain 2019-2021 Mercedes-Benz Sprinter and Freightliner Sprinter vehicles. The MBUX multimedia system software may cause the display to remain black, or reboot after startup. This… | The multimedia system software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. DVUSA issued owners an interim notification on July… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
| 21V410000 | June 2, 2021 | Air Bags | Daimler Vans USA, LLC (DVUSA) is recalling 2019-2021 Mercedes Benz Sprinter and Freightliner Sprinter vehicles equipped with swivel seats. The wiring harnesses for the front seats may have been routed incorrectly and could become… | Dealers will attach the mounting clip to the correct position, free of charge. Owner notification letters were mailed on August 11, 2021. Owners may contact DVUSA… | Vehicle | Inherited from Mercedes-Benz Sprinter | Full notice NHTSA |
Complaints by component
NHTSA holds no complaints for this model year in this dataset.
Chassis
- Mercedes-Benz Sprinter (medium confidence). Named as the chassis for these model years in NHTSA notices 20V308000, 20V312000, 20V444000.
A family can be built on more than one chassis. Only chassis that a recall notice names for these model years are listed, so a chassis missing here is a gap in the record. A chassis recall covers only the vehicles its own notice describes, by build date and VIN range; check the notice before assuming it applies to a particular coach.
Canadian notices
Transport Canada publishes its own notices with their own IDs. They are separate records from the U.S. campaigns above and are never merged with them.
- Notice 2020554 (November 17, 2020): Electrical. Official page
Related model years
- 2020 Thor Motor Coach Quantum
- 2022 Thor Motor Coach Quantum
- Thor Motor Coach Quantum, all years
- 2021 Forest River Sunseeker (same class)
- 2021 Thor Motor Coach Four Winds (same class)
- 2021 Winnebago Ekko (same class)
- 2021 Winnebago View (same class)
Source release: NHTSA September 19, 2026. Method version v1. How this page is built.
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