2021 Thor Motor Coach PALAZZO: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
0 owner complaints analyzed
2 distinct recall campaigns
Not available median reported failure mileage
Scope: 2021 model year. Data updated: . 0 complaints include usable failure mileage. View data status.
Most common problems
No owner complaints are recorded for this selection. A complaint can name multiple components.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
No usable records for this chart.
| Category | Count |
|---|
No records.
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
No usable failure mileage is recorded. 0 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
No usable records for this chart.
| Category | Count |
|---|
No records.
Pattern summary
There is not enough complaint evidence to summarize patterns.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Recall history
2 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
20V559000 · Tires:Valve
Reported: 2020-09-15 (September 15, 2020)
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 1-800-547-0712. TMC's number for this recall is RC000204. DTNA's number for this recall is FL-861.
NHTSA campaign record ↗23V113000 · Equipment:Recreational Vehicle/Trailer
Reported: 2023-02-23 (February 23, 2023)
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.
NHTSA campaign record ↗Vehicle analysis explorer
Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.
Data completeness
0 unique complaints in this selection. Analysis snapshot: 2026-10-01.
Missing, zero and invalid mileage is excluded. Dates after the snapshot are excluded. Examples are limited selections, not a representative sample.
Problems by model year
Model-wide comparison of the eight most reported components across the model. Cells show counts and shares within each model year. Open a cell for source examples.
| Component | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Visibility/Wiper | 562.5%ODI 11311947 · 30,000 miTHOR USES HEHR DOUBLE-PANE WINDOWS IN MOST OF THEIR PRODUCTS. THE WINDOWS FREQUENTLY SEPARATE, AND THE GLASS PANES CAN FALL-OUT ON THE ROAD, CREATING A HAZARD. | 457.1%ODI 11120534WHILE DRIVING THE WIPERS STALLED IN THE POURING RAIN. LUCKILY I WAS ABLE TO PULL OVER WITHOUT INCIDENT. I WAITED UNTIL THE RAIN SLOWED AND WHEN I STARTED OUT THE WIPERS STARTED WORKING AGAIN. A FEW MINUTES LATER THE STALLED AGAIN AND WAS ABLE TO PULL INTO A REST STOP. I WAS DOING ABOUT 60 MPH AND BELIEVE MY WIFE AND I WERE FORTUNATE THAT NOTHING TERRIBLE HAPPENED. | 0UnavailableNo examples available for this selection. | 2100.0%ODI 11582516Dual pane windows become foggy internally and make the side view mirrors extremely difficult to see especially at night. | 233.3%ODI 11541771AS 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. | 216.7%ODI 11311899 · 4,600 miDRIVERS SIDE REAR BEDROOM VENT WINDOW HAS DELAMINATED TWICE, FIRST IN OCT. 2019 (REPLACED UNDER WARRANTY) AND AGAIN IN JAN 2020 (STILL AT DEALERSHIP SERVICE AWAITING REPLACEMENT FROM LCI/THOR. BOTH TIMES, I WAS FORTUNATE TO DISCOVER THE SEPARATION BEFORE DRIVING THE VEHICLE DURING MY PRE-TRIP WALKAROUNDS, THUS AVOIDING THE DANGER OF THE OUTER GLASS FLYING OFF THE RV AND INTO TRAFFIC. ALSO IN DEC. 2019, THE FRONT RIGHT (PASSENGER SIDE) FIXED DUAL PANE WINDOW STARTED TO SHOW FOGGING WHEN EXPOSED TO DIRECT SUNLIGHT (NO ACTION TAKEN YET TO REPLA… | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. |
| Unknown Or Other | 00.0%No examples available for this selection. | 114.3%ODI 11342532 · 14,500 miMY GRANDSON WAS LOCKED IN OUR MOTORHOME BECAUSE THE ONLY DOOR IN OUR COACH BROKE IN HALF INSIDE OUR DOOR. WE HAD TO BREAK A WINDOW ON OUR SLIDE OUT TO GET HIM OUT. REPLACED THE LOCK AND WINDOW AT OUR EXPENSE NOT TO MENTION I HEARD THIS IS AN ONGOING PROBLEM AND SAFETY HAZZARD | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 116.7%ODI 11737992I 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… | 866.7%ODI 11311899 · 4,600 miDRIVERS SIDE REAR BEDROOM VENT WINDOW HAS DELAMINATED TWICE, FIRST IN OCT. 2019 (REPLACED UNDER WARRANTY) AND AGAIN IN JAN 2020 (STILL AT DEALERSHIP SERVICE AWAITING REPLACEMENT FROM LCI/THOR. BOTH TIMES, I WAS FORTUNATE TO DISCOVER THE SEPARATION BEFORE DRIVING THE VEHICLE DURING MY PRE-TRIP WALKAROUNDS, THUS AVOIDING THE DANGER OF THE OUTER GLASS FLYING OFF THE RV AND INTO TRAFFIC. ALSO IN DEC. 2019, THE FRONT RIGHT (PASSENGER SIDE) FIXED DUAL PANE WINDOW STARTED TO SHOW FOGGING WHEN EXPOSED TO DIRECT SUNLIGHT (NO ACTION TAKEN YET TO REPLA… | 1100.0%ODI 11633262Driving down the highway and the DEF check engine light came on. It indicated to pull over and shut down immediately. I was on a highway that had long 7% grade hills with minimal places to pull over in arizona mou tain range. I was able to make it home after engine debated. Took to a freightliner dealer and paid 4400.00 to have DEF pump replaced. It turns out that was not the problem. I tried to go on another trip a month later and I hot a low DEF signal. I was told it was a DEF head. Freightliner XCS chassis our having lots of issues with … | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. |
| Structure:Body | 00.0%No examples available for this selection. | 228.6%ODI 11078987 · 42,000 miA PART OF THE LOCKING MECHANISM ON THE ONLY DOOR ON THE RV BROKE, EFFECTIVELY TRAPPING US INSIDE THE VEHICLE. THE MANUFACTURER (TRIMARK) IS AWARE OF THIS ISSUE AND NOW MANUFACTURES THE PART OUT OF STEEL INSTEAD OF THE CAST PART THAT FAILED. WE WERE AT A FUEL STATION AND PARKED. WE HAD TO CLIMB OUT A WINDOW WITH TOOLS TO FORCE THE DOOR OPEN. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 583.3%ODI 11315770 · 15,815 miWHILE 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 WA… | 18.3%ODI 11598796Hello 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 th… | 00.0%No examples available for this selection. | 133.3%ODI 11434764The 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 problem online. | 0UnavailableNo examples available for this selection. | 125.0%ODI 11494085The Thor Palazzo has 2 braces in the front "nose" area of the coach-these braces are metal brackets that attach the front fiberglass nose to the area that contains the generator and fans for the air conditioner and other front-end components. These braces attach at both ends: the front part of the brace attaches w/ screws to a piece of wood that is then screwed into the fiberglass on the very front of the motorhome. The back side of the brace is attached w/ screws to a metal piece. This bracket acts as a support to the front windshield of the c… | 0UnavailableNo examples available for this selection. |
| Exterior Lighting | 225.0%ODI 10679891 · 7,000 miA FRIEND ON AN RV TOUR LET ME KNOW THAT MY RUNNING LIGHTS ON THE SIDE OF THE RV BLINK ON THE RIGHT SIDE WHEN YOU TURN ON THE LEFT TURN SIGNAL AND ON THE LEFT SIDE WHEN YOU TURN ON RIGHT TURN SIGNAL, THEY ARE WIRED IN REVERSE. I HAVE CONTACTED THOR AND THEY REFUSE TO CORRECT THE SAFETY ISSUE EVEN THOUGH THERE IS A POSSIBILITY OF THIS CAUSING AN ACCIDENT. *TR | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 116.7%ODI 11479345 · 26,000 miThe 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. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 133.3%ODI 11615219The 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 working properly. The repaired Modual failed again in less than 1000 miles driven resulting in no passenger tail light, no brake lights, no running lights, and no function of the towed vehicle lights plug. The recall on my PDM P\N A66-05172-00 was not succ… | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. |
| Equipment:Recreational Vehicle/Trailer | 112.5%ODI 105152552013 THOR PALAZZO. CONSUMER WRITES IN REGARDS TO VEHICLE WATER LINE ISSUES AND PROBLEMS WITH TIRES. *SMD THE CONSUMER STATED THE RV WAS DELIVERED TO HIM WITH OUT OF ROUND. AN IMMEDIATE BREAK IN THE WATER LINE OCCURRED A WEEK AFTER PURCHASING THE RV. THE CONSUMER ALSO STATED WHEN DRIVING THE RV, THE RIDE WAS HORRIBLE, ROUGH AND EXTREMELY NOISY, AS WELL AS HARD TO HANDLE. THE CONSUMER LATER LEARNED IT WAS DUE TO THE OUT OF ROUND TIRES. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 216.7%ODI 11291907 · 6,000 miTHE FRONT CABINET ABOVE THE FRONT DASH INCLUDING THE STEERING WHEEL AND OTHER OPERATOR CONTROLS DETACHED FROM THE CEILING AND BEGAN FALLING DOWN. THIS OCCURRED WHILE THE RV WAS IN MOTION. HAD IT COMPLETELY DETACHED CONTROL OF THE RV WOULD HAVE BEEN LOST. THE SCREWS HOLDING THE CABINET FRONT PULLED OUT OF THE WHERE THEY WERE SCREWED IN ALLOWING THE FRONT OF THE CABINET TO FALL.*DT THE CONSUMER PROVIDED PHOTOS. *TR*DT*JB*DT CONSUMER SAYS THAT THERE WERE NO RV DEALERS NEARBY SO THEY REFASTENED THE SCREWS AS A STOP GAP MEASURE. DEALER AND MANU… | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. |
| Structure | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 216.7%ODI 11291907 · 6,000 miTHE FRONT CABINET ABOVE THE FRONT DASH INCLUDING THE STEERING WHEEL AND OTHER OPERATOR CONTROLS DETACHED FROM THE CEILING AND BEGAN FALLING DOWN. THIS OCCURRED WHILE THE RV WAS IN MOTION. HAD IT COMPLETELY DETACHED CONTROL OF THE RV WOULD HAVE BEEN LOST. THE SCREWS HOLDING THE CABINET FRONT PULLED OUT OF THE WHERE THEY WERE SCREWED IN ALLOWING THE FRONT OF THE CABINET TO FALL.*DT THE CONSUMER PROVIDED PHOTOS. *TR*DT*JB*DT CONSUMER SAYS THAT THERE WERE NO RV DEALERS NEARBY SO THEY REFASTENED THE SCREWS AS A STOP GAP MEASURE. DEALER AND MANU… | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 125.0%ODI 11688342 · 13,160 miThe contact owns a 2022 Thor Motor Coach Pallazo RV built on a 2022 Freightliner XC-S Chassis. The contact stated that while driving approximately 55-60 MPH, the front cap was shuddering, and the contact noticed that the windshield was abnormally moving from side to side. Additionally, a prior crack on the windshield was expanding due to the failure. The contact stated that upon arriving at the residence, the contact became aware that the windshield had cracked significantly. The RV was taken to an Auto Glass Shop, and the windshield was repla… | 0UnavailableNo examples available for this selection. |
| Visibility:Glass, Side/Rear | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 216.7%ODI 11624209MY 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. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. |
| Electrical System | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 133.3%ODI 11615219The 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 working properly. The repaired Modual failed again in less than 1000 miles driven resulting in no passenger tail light, no brake lights, no running lights, and no function of the towed vehicle lights plug. The recall on my PDM P\N A66-05172-00 was not succ… | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. |
Darker cells indicate a larger share of submitted complaints. Components overlap. This measures complaint composition, not failure probability.
Failure mileage by component
Median and middle 50% of usable owner-reported mileages. Ranges require at least five records.
| Component | Mileage range (25th–75th percentile) | Median | Usable records | Examples |
|---|---|---|---|---|
| No usable records for this analysis. | ||||
Complaint and recall timeline
Explore monthly filing activity alongside recall announcements. Up to ten years of monthly history is available.
Solid line: filed complaints. Dashed amber lines: recall announcement dates for this vehicle selection; markers include all recall components. The latest month is partial. Temporal proximity does not establish causation.
Monthly counts, recall campaigns and complaint examples
| Month | Complaints | Campaigns announced | Examples |
|---|---|---|---|
| 2024-11 | 0 | None | No examples available for this selection. |
| 2024-12 | 0 | None | No examples available for this selection. |
| 2025-01 | 0 | None | No examples available for this selection. |
| 2025-02 | 0 | None | No examples available for this selection. |
| 2025-03 | 0 | None | No examples available for this selection. |
| 2025-04 | 0 | None | No examples available for this selection. |
| 2025-05 | 0 | None | No examples available for this selection. |
| 2025-06 | 0 | None | No examples available for this selection. |
| 2025-07 | 0 | None | No examples available for this selection. |
| 2025-08 | 0 | None | No examples available for this selection. |
| 2025-09 | 0 | None | No examples available for this selection. |
| 2025-10 | 0 | None | No examples available for this selection. |
| 2025-11 | 0 | None | No examples available for this selection. |
| 2025-12 | 0 | None | No examples available for this selection. |
| 2026-01 | 0 | None | No examples available for this selection. |
| 2026-02 | 0 | None | No examples available for this selection. |
| 2026-03 | 0 | None | No examples available for this selection. |
| 2026-04 | 0 | None | No examples available for this selection. |
| 2026-05 | 0 | None | No examples available for this selection. |
| 2026-06 | 0 | None | No examples available for this selection. |
| 2026-07 | 0 | None | No examples available for this selection. |
| 2026-08 | 0 | None | No examples available for this selection. |
| 2026-09 | 0 | None | No examples available for this selection. |
| 2026-10 (partial) | 0 | None | No examples available for this selection. |
Emerging complaint spikes
Complete months in the latest six months with at least 10 complaints, at least twice the preceding 12-month average, and at least three square-root deviations above that average.
This is a descriptive screening rule, not a statistical defect finding. Publicity and reporting changes can increase submissions.
No complete months meet the spike thresholds for this selection.
Equal-age model-year comparison
Model-wide cumulative reports during the first three or five calendar years, starting with the model year (age 0). Only fully elapsed windows are compared.
2022: 3 complaints · 2023: 0 complaints
| Model year | Through age 0 | Through age 1 | Through age 2 |
|---|---|---|---|
| 2022 | 2 | 3 | 3 |
| 2023 | 0 | 0 | 0 |
Date coverage across each selected cohort
| Year | Incident dates used | Filing date fallbacks | Excluded dates |
|---|---|---|---|
| 2022 | 4 | 0 | 0 |
| 2023 | 0 | 0 | 0 |
Incident date is preferred when valid and no later than filing; otherwise filing date is used. Model year approximates age. Equal observation time does not adjust for sales, distance driven or reporting delays. One complaint linked to multiple model years can appear in each cohort.
Components reported together
Each cell counts unique complaints naming both components. Open a nonzero cell for examples.
| Component |
|---|
| No usable records for this analysis. |
Co-reporting does not establish that one component caused another concern.
Recurring narrative patterns
Specific keyword mentions beyond broad component labels. Matching includes negations and comparisons and does not confirm a diagnosis.
0 patterns with matching reports.
No narratives match the published patterns.