How many recalls does the 2020 Thor Motor Coach Quantum have?

NHTSA lists 7 recall campaigns for the 2020 Thor Motor Coach Quantum as of October 16, 2026. Each includes the defect description, safety consequence, and the remedy Thor Motor Coach will perform. New recalls can be issued at any time; this page is refreshed from NHTSA daily.

How do I tell if my 2020 Thor Motor Coach Quantum is affected by a recall?

Enter your 17-character VIN — stamped at the base of the windshield on the driver side and on the door jamb sticker — at nhtsa.gov/recalls. NHTSA's VIN lookup shows whether your specific vehicle has an unrepaired recall; the list on this page covers every campaign for the 2020 Thor Motor Coach Quantum.

Are recall repairs on a 2020 Thor Motor Coach Quantum free?

Usually. Federal law requires Thor Motor Coach to remedy recalls on the 2020 Quantum free of charge at an authorized Thor Motor Coach dealer, regardless of how many owners the vehicle has had or how many miles are on the odometer — unless it was first sold more than 15 years before the recall was issued (5 years for tires).

Does a recall on the 2020 Thor Motor Coach Quantum affect resale value?

An open recall can reduce resale value; a recall that has been repaired (documented in the vehicle history report) generally does not. Before you buy or sell a used 2020 Thor Motor Coach Quantum, check the VIN at nhtsa.gov/recalls to confirm every recall has been remedied.

How many owner complaints are on file for the 2020 Thor Motor Coach Quantum?

No owner complaints have been filed with NHTSA on the 2020 Thor Motor Coach Quantum.

NHTSA vehicle safety data

2020 Thor Motor Coach Quantum Recalls, Ratings & Complaints

The 2020 Thor Motor Coach Quantum has 7 NHTSA recall campaigns and 0 owner complaints on file as of October 16, 2026. Recall repairs are usually free at an authorized Thor Motor Coach dealer.

NHTSA recall and complaint data for the 2020 Thor Motor Coach Quantum. Recall data is refreshed daily from NHTSA.

Pre-purchase inspection checklist → Reliability & 5-year cost forecast →

STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS

NHTSA #20V312000

Reported May 28, 2020 · Thor Motor Coach

Potentially affected: 566 vehicles

Defect description

Thor Motor Coach (TMC) is recalling certain 2020 Daybreak, Four Winds, Delano, Gemini, Quantum, Tiburon, Chateau Citation, Compass, Chateau, Siesta, Freedom Elite, and Synergy motorhomes built on Mercedes Benz Sprinter chassis [platform 907 (VS30)]. The rear part of the fender liner on the front axle may contact and chafe the brake hose, possibly resulting in a loss of brake fluid.

Safety consequence

If the brake fluid leaks, this may extend the braking distance, increasing the risk of a crash.

Manufacturer remedy

TMC will notify owners, and an authorized Mercedes-Benz dealer will inspect the brake hoses for chafing and replacement if necessary. The fender liner will also be altered to permit more clearance. All repairs will be performed free of charge. This recall began June 25, 2020. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000191.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

ELECTRONIC STABILITY CONTROL (ESC)

NHTSA #20V303000

Reported May 27, 2020 · Thor Motor Coach

Potentially affected: 34 vehicles

Defect description

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).

Safety 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.

Manufacturer 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. The recall The recall began June 25, 2020., 2020. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000189.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

POWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA #20V308000

Reported May 27, 2020 · Thor Motor Coach

Potentially affected: 566 vehicles

Defect description

Thor Motor Coach (TMC) is recalling certain 2020 Daybreak, Four Winds, Delano, Gemini, Quantum, Tiburon, Chateau Citation, Compass, Chateau, Siesta, Freedom Elite, and Synergy motorhomes built on Mercedes-Benz Sprinter chassis [platform 907 (VS30)] equipped with automatic transmissions. The owner's manual does not correctly specify the certain conditions under which the automatic parking function (Auto-P) operates.

Safety consequence

If a customer were to rely on the Auto-P function as described in the Operator's Manual, the possibility of a vehicle rollaway or unintended vehicle movement cannot be ruled out which could increase the risk of a crash.

Manufacturer remedy

TMC will notify owners, and a Mercedes Benz dealer will supplement the Operator's Manual with a correct description of the Auto-P function equipped in the vehicle. This recall began June 25, 2020. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000190.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT

NHTSA #20V178000

Reported March 25, 2020 · Thor Motor Coach

Potentially affected: 22 vehicles

Defect description

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.

Safety 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.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

NHTSA #19V775000

Reported October 28, 2019 · Thor Motor Coach

Potentially affected: 378 vehicles

Defect description

Thor Motor Coach (TMC) is recalling certain 2019-2020 Chateau 22B, 22E, 23U, 24F, 25V, and 28A, Daybreak 22GO, Four Winds 22B, 22E, 24F, 26B and 28A, Freedom Elite 22HE and 2020 Quantum GR22, and SE22 motorhomes. The seatbelt-unfastened warning light will not illuminate for approximately five seconds after the ignition is moved to the "on" or "start" position. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."

Safety consequence

Without the seatbelt warning reminder, the driver may forget to fasten the seatbelt, increasing the risk of injury in the event of a crash.

Manufacturer remedy

GM will notify TMC owners, and dealers will reprogram the instrument panel cluster, free of charge. The recall began October 3, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438, GMC customer service at 1-800-462-8782 or TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000177.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

EQUIPMENT:OTHER:LABELS

NHTSA #19V714000

Reported October 8, 2019 · Thor Motor Coach

Potentially affected: 101 vehicles

Defect description

Thor Motor Coach (TMC) is recalling certain 2014 Tuscany 36M, 40E, 2015 Citation 24SL, Siesta 24SL, Axis 25.1 and Vegas 25.1, 2016 Four Winds 31E, 31W, 35SF, Chateau 31E, 31W, Synergy SD24, Citation 24SL, 24SS and Siesta 24SL, 24SS, 2017 Four Winds 31E, 31W, Chateau 31E, 35SD, Citation 24SS and Siesta 24SS, 2018 Citation 24SS and Siesta 24SS, 2019 Quantum CR24, Four Winds 24BL, Citation 24MB and Siesta 24MB and 2020 Quantum CR24, Citation 24MB, Siesta 24MB, Chateau 24BL and Synergy 24MB vehicles. The Occupant and Cargo Carrying Capacity (OCCC) label has the incorrect carrying capacity listed, which can allow the vehicle to be overloaded. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 120, "Wheels and Rims - Other Than Passenger Cars."

Safety consequence

An inadvertently overloaded motorhome due to an incorrect carrying capacity can increase the risk of a crash.

Manufacturer remedy

TMC will notify owners, and dealers will issue new OCCC labels with correct seating positions and weight calculations, free of charge. The recall began November 21, 2019. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000176.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

NHTSA #19V609000

Reported August 20, 2019 · Thor Motor Coach

Potentially affected: 1,941 vehicles

Defect description

Thor Motor Coach (TMC) is recalling certain 2020 Chateau, Daybreak, Four Winds, Freedom Elite, Majestic, Outlaw and Quantum motorhomes. The battery cables may loosen on the battery isolation manager (BIM) or battery isolation relay (BIR), causing premature BIN/BIR failure or electrical arcing.

Safety consequence

The loose connection can causing arcing, increasing the risk of a fire.

Manufacturer remedy

TMC will notify owners, and dealers will install lock washers to properly secure the battery cable to the BIM/BIR. If the cable was loose, dealers will also replace the BIM/BIR, free of charge. The recall began October 10, 2019. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000172.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Other Thor Motor Coach Quantum model years

Check your 2020 Thor Motor Coach Quantum VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Thor Motor Coach Quantum at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

Check a Thor Motor Coach VIN