2020 Thor Motor Coach Aria problems, complaints & recalls
Most-reported problem areas: Structure:body (1) · Electrical System (1)
Safety recalls (4)
Equipment:recreational Vehicle/Trailer 2021-07-08 · campaign 21V522000 · 521 vehicles
Defect: Thor Motor Coach (TMC) is recalling certain 2019 Challenger, Palazzo, Tuscany, 2019-2020 Miramar, 2019-2021 Aria, Outlaw, and Venetian recreational vehicles equipped with Hehr 6400 series windows. The adhesive that bonds the vented portion of the window may fail.
Risk: Adhesive failure may cause the vent portion of the window to detach, increasing the risk of a crash or injury.
Fix: Dealers will inspect the windows, and replace the vent if necessary, free of charge. Owner notification letters were mailed September 8, 2021. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000232.
Tires:valve 2020-09-15 · campaign 20V559000 · 1,631 vehicles
Defect: Thor Motor Coach (TMC) is recalling certain 2018-2021 Aria, Palazzo, Tuscany, and Venetian motorhomes built on a Daimler Trucks (DTNA) chassis. The tire valve stem extension for the inner wheel may contact the outer wheel rim opening and become damaged.
Risk: Extensive damage to the valve stem extension may result in a loss of tire pressure of the inner wheel, increasing the risk of a crash.
Fix: TMC will notify owners, and DTNA dealers will inspect the inner wheel valve stem stabilizers, and adjust as needed and/or replace the inner valve stem, free of charge. The recall began November 2, 2020. Owners may contact TMC customer service at 1-800-524-5210 extension 104 or DTNA customer service at 1-800-547-0712. TMC's number for this recall is RC000204. DTNA's number for this recall is FL-861.
Exterior Lighting:turn Signal 2020-07-20 · campaign 20V418000 · 2,417 vehicles
Defect: Thor Motor Coach (TMC) is recalling certain 2017-2020 Aria, Venetian and Tuscany, 2017 Tuscany XTE and 2017-2019 Palazzo motorhomes vehicles that received an inspection-only remedy for recall 18V-763. The rear mounted Power Distribution Module (PDM) may have been damaged during manufacturing, possibly resulting in the rear marker lights, brake lights, or turn signals not functioning.
Risk: Non-functioning exterior marker lights can increase the risk of a crash.
Fix: TMC will notify owners, and Daimler Trucks dealers will replace the PDM, free of charge. Owner letters were mailed October 6, 2021. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000196.
Service Brakes, Air:disc:caliper 2020-03-20 · campaign 20V167000 · 85 vehicles
Defect: Thor Motor Coach (TMC) is recalling certain 2019-2020 Aria 3401, 3601, 3901, 3902, and Venetian G36, J40, L40, M37, R40, and S40 motorhomes built on DTNA chassis. The brake caliper mounting bolts may have been insufficiently tightened.
Risk: Loose brake caliper mounting bolts can reduce brake effectiveness, increasing the risk of a crash.
Fix: DTNA will notify owners, and DTNA dealers will inspect and repair the vehicles, free of charge. The recall began on May 20, 2020. Owners may contact DTNA customer service at 1-800-547-0712 or TMC customer service at 1-877-855-2867.
Service bulletins (1)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Equipment 2019-12-05 · LTR 120519 · Service Bulletin/Repair Instructions
this letter stated that there were no service bulletins or technical service bulletins issued for the month of november, 2019.
What owners report
2023-10-03 · Electrical System“four times while driving, the stop engine light came on causing the vehicle to slow to 5 mph--twice while i was on the freeway in busy traffic--very hazardous. two different error codes showed after the check engine light came on and then after i stopped and restarted the engine a few hours later, the check engine lights turned off. i took it to …”
2022-05-09 · Structure:body“the fresh water tank, which was only half full of water, broke through the floor allowing the tank to drop down to the road. i was pulling into a gas station to fill up with fuel. luckily it happened before i got on the interstate and would have been traveling at a higher rate of speed. the tank is located in front of the rear dual tires on th…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.