No complaints are listed for the 2020 Thor Motor Coach Quantum. NHTSA's API and bulk file list none in this build.
Data build 2026-10-09.
NHTSA lists this vehicle as THOR MOTOR COACH QUANTUM.
Model-generated complaint tags: No complaints are listed for tagging.
Recalls
See new recalls and investigations this week.
9 recalls.
Date: 2020-11-17. Systems: ELECTRICAL SYSTEM.
Defect: 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 watertight when exposed to engine compartment heat.
Consequence: Water may get into the BIM/BIR and create electrical arcing, increasing the risk of a fire.
Remedy: 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 customer service at 1-877-855-2867. TMC's number for this recall is RC000206.
Do not drive: No. Park outside: No.
Date: 2020-07-29. Systems: AIR BAGS, ELECTRICAL SYSTEM, SEATS.
Defect: 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 Sprinter Van chassis (platform 970 (VS30), equipped with swivel seats. The wiring harnesses for the front seats may have been routed incorrectly and could become jammed and da (excerpt)
Consequence: If the wiring harness is damaged, the side air bag within the seat may deploy inadvertently or not deploy as designed in the event of a crash, increasing the risk of injury to vehicle occupants. (excerpt)
Remedy: 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 needed, free of charge. This recall began August 13, 2020. Owners may contact Thor customer service at 1-877-855-2867 Mercedes-Benz customer service at 1-877-762-8267. Thor's number for this recall is RC000200. (excerpt)
Do not drive: No. Park outside: No.
Date: 2020-05-28. Systems: SERVICE BRAKES, HYDRAULIC, STRUCTURE.
Defect: 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.
Consequence: If the brake fluid leaks, this may extend the braking distance, increasing the risk of a crash.
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.
Do not drive: No. Park outside: No.
Date: 2020-05-27. Systems: EQUIPMENT, POWER TRAIN.
Defect: 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 (excerpt)
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. (excerpt)
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. (excerpt)
Do not drive: No. Park outside: No.
Date: 2020-05-27. Systems: ELECTRICAL SYSTEM, ELECTRONIC STABILITY CONTROL (ESC), SERVICE BRAKES, HYDRAULIC.
Defect: 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). (excerpt)
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. (excerpt)
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. (excerpt)
Do not drive: No. Park outside: No.
Date: 2020-03-25. Systems: POWER TRAIN.
Defect: 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.
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.
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.
Do not drive: No. Park outside: No.
Date: 2019-10-28. Systems: ELECTRICAL SYSTEM, SEAT BELTS.
Defect: 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 com (excerpt)
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. (excerpt)
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. (excerpt)
Do not drive: No. Park outside: No.
Date: 2019-10-08. Systems: EQUIPMENT.
Defect: 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 S (excerpt)
Consequence: An inadvertently overloaded motorhome due to an incorrect carrying capacity can increase the risk of a crash. (excerpt)
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. (excerpt)
Do not drive: No. Park outside: No.
Date: 2019-08-20. Systems: ELECTRICAL SYSTEM.
Defect: 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.
Consequence: The loose connection can causing arcing, increasing the risk of a fire.
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.
Do not drive: No. Park outside: No.