2019–2021 Thor Motor Coach Aria, 2021 Thor Motor Coach Outlaw, 2019 Thor Motor Coach Palazzo and 5 other models Recall: Adhesive that bonds the vented portion of the window may fail
NHTSA campaign 21V522000 · Equipment · filed Jul 8, 2021 · verified Jul 30, 2026
The 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.
The risk
Adhesive failure may cause the vent portion of the window to detach, increasing the risk of a crash or injury.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
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.
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.nhtsa.gov.
Affected vehicles
Related recalls
More Thor Motor Coach Aria recalls
- 2018–2021 Thor Motor Coach Aria and 4 other models — Tire valve stem extension for the inner wheel may contact…
- 2017–2020 Thor Motor Coach Aria and 4 other models — Rear mounted Power Distribution Module (PDM) may have been…
- 2019–2020 Thor Motor Coach Aria and 1 other model — Brake caliper mounting bolts may have been insufficiently…
Other campaigns involving Thor Motor Coach vehicles
- 2023–2024 Thor Motor Coach Dazzle and 7 other models — Solar panel mounting brackets may become loose or break…
- 2023–2024 Thor Motor Coach Dazzle and 5 other models — Adhesive securing the solar panels to the roof may fail…
- 2025–2026 Thor Motor Coach Chateau and 7 other models — A P-clamp may not have been installed, allowing the Liquid…
All Thor Motor Coach Aria recalls → · All Thor Motor Coach recalls →
Source: NHTSA recall database, campaign 21V522000 (manufacturer number RC000232). Data last verified Jul 30, 2026.