2018 Thor Motor Coach Palazzo recalls and problems

The 2018 Thor Motor Coach Palazzo has 3 safety recalls and 12 owner complaints filed with NHTSA. Recall repairs are free at any Thor Motor Coach dealer.

Recalls
3
Complaints
12
Crashes / fires
0 / 0
Injuries / deaths
0 / 0

Recalls may cover only some 2018 Thor Motor Coach Palazzo vehicles. Check your VIN at NHTSA ↗ to see open recalls for your exact car.

2018 Thor Motor Coach Palazzo recalls

Recall 23V-113: Equipment

Reported Feb 23, 2023 · 1,969 vehicles affected · Thor Motor Coach

Problem: 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.

Recall 20V-559: Tires

Reported Sep 15, 2020 · 1,631 vehicles affected · Thor Motor Coach

Problem: 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.

Recall 20V-418: Exterior Lighting, Electrical System

Reported Jul 20, 2020 · 2,417 vehicles affected · Thor Motor Coach

Problem: 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.

2018 Thor Motor Coach Palazzo problems reported by owners

Problem areaReports
Unknown or Other8
Structure3
Visibility3
Equipment2
Visibility/Wiper2

Most reported parts

  • Equipment › Recreational Vehicle/Trailer — 2
  • Visibility › Glass, Side/Rear — 2
  • Structure › Body — 1

Typical mileage at the time of the problem: 6,000 miles (median of owner reports).

Problems that are not covered by a recall are paid repairs; labor rates follow local mechanic pay — see what auto mechanics earn in each state.

Recent 2018 Thor Motor Coach Palazzo complaints

Owner reports filed with NHTSA, as written (personal details removed). Complaints are not verified by NHTSA.

Unknown or Other · reported Jul 2, 2025
The Thor motorhome has several windows. The windows they installed are laminated windows, with two panes of glass and a seal or glue which connects the outer glass to the inner glass. The attachment method for the outer glass is ineffective. As a result, the outer glass pane comes loose from the inner and is prone to fall off or fly off at highway speeds. The risk is that the pane could strike another vehicle and possibly cause an accident. Already Thor has replaced two of the window units on this unit around 2021, not under warranty but as a customer courtesy. I now have a third window unit…
Unknown or Other · reported Nov 8, 2024
My 2018 thor palazzo driverside and passenger side windows have fogged up to where it is very hard to see out of and has become a safety concern.
Structure · reported Jul 4, 2024
Hello NTSB, the frameless windows Thor used on my rv are all failing.. basically the adhesive used to glue the bottom rail onto the glass keeps failing. This week I had two windows fail. The top bunk window, and the emergency exit window. Both window (at separate times) failed while driving. Lucky I saw them break loose and my wife was able to grab the window before it flew off on the freeway and possibly caused a major accident or injury with flying glass at freeway speed. Again this is the 4th window failure in the last 3 years. All with the Same problem. Last summer I had the same problem…
Unknown or Other · reported Jun 12, 2024
The LP gas line running to the rear mounted water heater started leaking and when removed you see where the hose was burned due to faulty engineering of hanger supports or improper installation. I have the current hose and have pictures of the engine compartment and the burned hose. No insurance claim or manufacturer contact was initiated. If you were to drive with the LP system energized and fire or explosion could occur with propane leaking into the engine compartment. The LP leak system did not detect the leak as it is located in the living area by the stove. A secondary sensor in now being…
Unknown or Other · reported May 1, 2024
Recall 21-E-047 was a recall on HERH window assemblies. The window adhesion is faulty and causes the window to separate from the vent bracket. I experienced this with my Palazzo. While traveling this last weekend a window broke free and came close to smashing into the car behind me. An absolute nightmare. Not only a major distraction to the RV driver but a potential fatal hazard if the window smashes into a trailing drivers windshield. I contacted lippert and sent photos and VIN. I was advised my coach VIN didn't fit within the VIN sequence they identified. Therefore they take no…

Other Thor Motor Coach Palazzo years

Compare all Thor Motor Coach Palazzo years · All Thor Motor Coach models

Frequently asked questions

Does the 2018 Thor Motor Coach Palazzo have any recalls?

Yes — NHTSA lists 3 recalls for the 2018 Thor Motor Coach Palazzo: 23V-113 (equipment), 20V-559 (tires), 20V-418 (exterior lighting, electrical system). Not every vehicle is affected, so check your VIN at nhtsa.gov/recalls.

What is the most common problem with the 2018 Thor Motor Coach Palazzo?

Owners report unknown or other problems most often (8 reports), followed by structure (3). The typical mileage when problems were reported is about 6,000 miles.

Are Thor Motor Coach recall repairs free?

Yes. Safety recall repairs are free at authorized Thor Motor Coach dealers, whether you are the first owner or bought the car used.