2018 Thor Motor Coach Aria problems, complaints & recalls
Most-reported problem areas: Structure (1)
Safety recalls (2)
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.
What owners report
2023-12-01 · Structure · 37,231 mi“the contact owns a 2018 freightliner xc-r. the contact stated that one of the windows located at the front end of the motorhome had started to delaminate. the contact used silicone to seal the window; however, he noticed that other windows in the motorhome were also experiencing the same failure. the contact stated that while driving at an unknown …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.