2017 Thor Motor Coach Palazzo problems, complaints & recalls
Most-reported problem areas: Structure:body (3) · Visibility/Wiper (2) · Exterior Lighting (1)
Safety recalls (2)
Equipment:recreational Vehicle/Trailer 2023-02-23 · campaign 23V113000 · 1,969 vehicles
Defect: Thor Motor Coach (TMC) is recalling certain 2015-2023 Palazzo recreational vehicles. The front lower cap brackets that support the front fiberglass panel may become loose and detach from the vehicle while in motion.
Risk: A detached bracket can become a road hazard, increasing the risk of a crash.
Fix: Dealers will inspect and replace the front lower brackets, as necessary, free of charge. Owner notification letters were mailed March 15, 2023. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000291.
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 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.
Structure 2021-01-13 · TSB 20-08 · Service Bulletin/Repair Instructions
the overhead cabinets located above the driver and front passenger seats may become loose during travel. this technical service bulletin will be gathering information regarding this possible concern and will provide guidance on how to ensure the overhead cabinets are properly secured in the motor
What owners report
2026-05-15 · Visibility/Wiper“i am reporting a serious and repeated safety defect involving hehr side windows installed on my 2018 thor palazzo 36.1 motorhome (vin: [xxx] ). multiple operable side windows on this rv have experienced adhesive bond failure between the scissor arm/operator mechanism and the vent glass pane. this has caused windows to partially detach and violentl…”
2023-08-30 · Visibility/Wiper“as i was driving mr rv. down the road , the rear side window just fell off onto the roadway. i believe the window is made by lippert. on the rv forum there are a lot of people experiencing this same problem.…”
2022-08-15 · Exterior Lighting · 26,000 mi“the contact owns a 2017 thor motor coach palazzo rv. the contact stated while operating the vehicle, the rear marker light, and the driver side(left turn) signal were inoperable. the vehicle was taken to the local dealer to be serviced under the nhtsa campaign number: 21v00h000 (electrical system, exterior lighting) which would address the failures…”
2020-09-25 · Structure:body · 5,000 mi“while stationary, first large window behind driver's side broke off, at the top hinge, for no reason. if this had happened while driving, it could have caused serious harm to fellow motorists. at the time this happened, i was unaware of this website and the ability to report.*dt…”
2020-08-04 · Structure:body · 12,000 mi“when parked in a parking lot after a 1hr drive, the only exit door the vehicle has did not open, preventing us from exiting the vehicle. other campers parked in the same lot were unable to open the door form the outside but able to hand me tools to take the lock apart from the inside and open the door using pliers and a screw driver. the door latch…”
2020-03-03 · Structure:body · 15,815 mi“while driving the rv, the window above the sink separated. the window is double paned. the outer glass pulled away and was flapping, causing the interior glass to also start pulling away. we were on a stretch of highway that was busy with trucks, approx 6:30pm (dark), 2 lanes eastbound i-40 in california. there were no exits for 20-25 miles aft…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.