The 2018 Thor Motor Coach Palazzo has 3 NHTSA recall campaigns affecting an estimated 6,017 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 18 complaints with NHTSA, most often about the unknown or other. Last updated July 5, 2026.
Recall campaigns
EQUIPMENT23V1130002023-02-231,969 affected
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.
Consequence
A detached bracket can become a road hazard, increasing the risk of a crash.
Remedy
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.
TIRES20V5590002020-09-151,631 affected
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.
Consequence
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.
Remedy
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…
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…
Consequence
Non-functioning exterior marker lights can increase the risk of a crash.
Remedy
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.
Complaints by component
UNKNOWN OR OTHER
8
EQUIPMENT:RECREATIONAL VEHICLE/TRAILER
2
STRUCTURE
2
VISIBILITY/WIPER
2
VISIBILITY:GLASS, SIDE/REAR
2
STRUCTURE:BODY
1
VISIBILITY
1
Total complaints18
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“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…”
“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…”
“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…”
“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…”
“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…”
“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.”
“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.”
“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…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2018 Thor Motor Coach Palazzo as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
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