The 2020 Thor Motor Coach Palazzo has 1 NHTSA recall campaign affecting an estimated 1,554 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 5 complaints with NHTSA, most often about the electrical system. Last updated July 5, 2026.
Recall campaigns
EQUIPMENT19V5040002019-06-301,554 affected
Defect
Thor Motor Coach (TMC) is recalling certain 2019-2020 Challenger, Miramar, Magnitude, Outlaw, Omni, and Palazzo motorhomes. The vehicle control system software may cause the slide-out room to move unexpectedly.
Consequence
Unexpected movement of the slide-out room can increase the risk of a injury.
Remedy
TMC will notify owners, and dealers will update the affected software, free of charge. The recall is expected to begin August 28, 2019. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000170.
Complaints by component
ELECTRICAL SYSTEM
1
EXTERIOR LIGHTING
1
SERVICE BRAKES
1
SERVICE BRAKES, AIR:CRITICAL FASTENERS
1
STRUCTURE:BODY
1
Total complaints5
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“The eaton power distribution modual p\n a66-05172-00 (s\n 18108065) in my motorhome was in a recall associated with the failed rear tail lights, rear turn signals, brack lights, running lights and failure of towed vehicle lights plug. The modual was repaired as a result of the recall and was…”
“The eaton power distribution modual p\n a66-05172-00 (s\n 18108065) in my motorhome was in a recall associated with the failed rear tail lights, rear turn signals, brack lights, running lights and failure of towed vehicle lights plug. The modual was repaired as a result of the recall and was…”
“The contact owns a 2020 thor palazzo built on a 2020 freightliner x line chassis. The contact stated that while driving approximately 55 mph during a storm, the air brakes system alarm illuminated. The contact immediately pulled over to the side of the roadway and turned off the rv. The rv was…”
“The contact owns a 2020 thor palazzo built on a 2020 freightliner x line chassis. The contact stated that while driving approximately 55 mph during a storm, the air brakes system alarm illuminated. The contact immediately pulled over to the side of the roadway and turned off the rv. The rv was…”
“The lower passenger side bracket between the fiberglass front of the body and the freightliner frame has released from the frame and is in danger of falling off. If this thing did come off and go bouncing down the road it could do some real damage. Noticed after other owners warned about the…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2020 Thor Motor Coach Palazzo as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
contains ads and affiliate links. Full methodology.