NHTSA vehicle safety data

2017 Thor Motor Coach Palazzo Recalls & Complaints

The 2017 Thor Motor Coach Palazzo has 2 NHTSA recall campaigns and 6 owner complaints on file as of November 3, 2026. Recall repairs are usually free at an authorized Thor Motor Coach dealer.

NHTSA recall and complaint data for the 2017 Thor Motor Coach Palazzo. Recall data is refreshed daily from NHTSA.

2017 Thor Motor Coach Palazzo owner complaints

Owners have filed 6 complaints with NHTSA about the 2017 Thor Motor Coach Palazzo, describing incidents dated May 9, 2019 to April 2, 2023.

Most-cited components

Structure 5 complaints
Visibility/Wiper 2 complaints
Exterior Lighting 1 complaint
Unknown or Other 1 complaint

Newest complaints

ODI #11737992 · Filed May 15, 2026
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…
ODI #11541771 · Filed August 30, 2023
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.
ODI #11479345 · Filed August 15, 2022
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…

Read all 6 complaints

NHTSA defect investigations

NHTSA's investigations file lists the 2017 Thor Motor Coach Palazzo in 1 investigation. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.

Preliminary Evaluation PE20-021: Trimark 060-1650 Door Latch Failures
Closed December 13, 2024

Open and recently closed NHTSA defect investigations

Front Lower Cap Brackets May Detach

NHTSA #23V113000 · Equipment — Recreational Vehicle/Trailer · NHTSA notice

Reported February 23, 2023 · Thor Motor Coach

Potentially affected: 1,969 vehicles

Repair completion: 23.77% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Thor Motor Coach campaign RC000291 · Owners notified March 15, 2023

Defect description

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.

Safety consequence

A detached bracket can become a road hazard, increasing the risk of a crash.

Manufacturer 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.

Notes

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.

Damaged Circuit Board May Affect Lighting Function

NHTSA #20V418000 · Exterior Lighting — Brake Lights · NHTSA notice

Reported July 20, 2020 · Thor Motor Coach

Potentially affected: 2,417 vehicles

Thor Motor Coach campaign RC000196 · Owners notified October 6, 2021

Defect description

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.

Safety consequence

Non-functioning exterior marker lights can increase the risk of a crash.

Manufacturer 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.

Notes

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.safercar.gov.

try.vin has no NCAP crash-test rating on file for the 2017 Thor Motor Coach Palazzo. NHTSA rates some vehicles by body style — pickups by cab, vans by roof height — so check nhtsa.gov/ratings.

6 owner complaints have been filed with NHTSA for the 2017 Thor Motor Coach Palazzo.

Structure; Unknown or Other; Visibility/Wiper

ODI #11737992

Incident: August 8, 2022 · Filed: May 15, 2026

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 violently flap while driving at highway speeds. One rear bathroom window completely detached and flew off the RV during highway travel in 2022. Additional adhesive failures have continued occurring from 2023 through 2025 involving: - Kitchen window - Living room window - Dinette window - Rear bathroom window (including replacement assembly) In several incidents, I was forced to pull onto the highway shoulder to perform emergency temporary repairs using tape and adhesive to prevent windows from fully detaching from the vehicle. In December 2025, while driving near [XXX] , the rear bathroom vent window again separated from the operator arm while traveling at highway speed despite prior repair work. The window was violently flapping in the wind and appeared at risk of completely detaching from the RV. This defect creates a serious road hazard because detached glass/window components could strike nearby vehicles or motorists. I am aware of prior Hehr/Lippert recalls involving adhesive-related window failures, but I have not found a recall covering this specific failure point involving separation between the operator arm and vent glass. The defect appears widespread across multiple windows on the RV and has persisted despite repeated repair attempts. I believe this issue warrants investigation and possible expansion of existing Hehr/Lippert window recalls. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Structure; Visibility/Wiper

ODI #11541771

Incident: April 2, 2023 · Filed: August 30, 2023

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.

Exterior Lighting

ODI #11479345

Incident: August 8, 2022 · Filed: August 15, 2022

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 but after the recall remedy was performed the failure persisted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 26,000.

Structure

ODI #11361051

Incident: May 9, 2019 · Filed: September 25, 2020

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

Structure

ODI #11343363

Incident: July 25, 2020 · Filed: August 4, 2020

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 MADE OF A ZINC OR SIMILAR DIE CASTING HAND BROKEN IN HALF PREVENTING THE RETRACTION OF THE LATCH AND KEEPING THE DOOR LATCHED.

Structure

ODI #11315770

Incident: March 2, 2020 · Filed: March 3, 2020

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 AFTER THE INCIDENT BEGAN. THE WINDOW CONTINUED TO BANG AND PULL AWAY THE ENTIRE DRIVE. THE PULL FROM THE WIND THREATENED TO COMPLETELY SEPARATE THE WINDOW ASSEMBLY FROM THE RV. THE HIGHWAY SHOULDER WAS NARROW WITH A DROP OFF SO WE DID NOT PULL OVER AS THIS WOULD ALSO NOT BE A SAFE SOLUTION.

Other Thor Motor Coach Palazzo model years

Check your 2017 Thor Motor Coach Palazzo VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Thor Motor Coach Palazzo at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

Check a Thor Motor Coach VIN