THOR MOTOR COACH Complaints

Second alternator repeated failures. Well known issue for these thors with Ballard 170XT alternator

We have been experiencing multiple issues with the electrical system in our RV. There was a serious safety event to took place, where the wiring box under the bed created smoke and we could smell plastic burning. When investigated by my husband, he found that the box under the bed that housed all the wires for the RV had burn marks on the inside of the box and the wires and wire caps had melted. Then we started having issues with the generator not working, and were unable to use the generator. We had to pull the generator and taken it too a generator repair shop and found that the wires inside the generator were melted and were told it was unrepairable. The dealer that we purchased the RV from, will not help us. But this has to be a big issue with this model because we had met someone from a camp ground that had the same RV and they had to same electrical issues.

Several windows have become delaminated and either foggy which results in significantly reduced visibility while driving or the window becoming loose and potentially falling off while driving.

The passenger side front window is a 2 pane window and the seal between the 2 panes has failed and the window is fogging up which makes it difficult to see the side mirror on the passenger side of the motorhome. This makes driving difficult with the fogged window.

Driving 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 DEF. The def is for emissions and should not shut the engine down or debate the performance for an emussion issue.

Driving on I-10 on December 12, 2024, the Solar Panel flew off the roof of my 2021 Thor Chateaux 27R and into the ditch. My wife following the RV in our other vehicle saw it happen. Luckily no one was hit by the panel as it could have been deadly serious. Looking at the roof later, I found two brackets (of a total of 4) still intact but missing bolts while the two brackets on the other side were gone with only two small screw holes in the roof. Months before I found one of the brackets loose at the solar panel and secured it. All the other brackets were tight.

My wife and I were driving Westbound on [XXX] in Washington state just East of Seattle when the driver side slide out went out on its own while my wife was sleeping on the couch. After taking it to the center it was purchased at they told me it was a failure of the safety retainers on the locking dogs that keep the unit secure when retracted. The manufacturer denied to repair. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

This unit is a 2024 Thor Rize class B RV on a 2023 Ram Promaster chassis. The FCW frequently and regularly turns off and will not reset. The FCW light illuminates and appears to affect other random electrical systems that also illuminate. I can manually reset it in the safety settings sometimes but regardless, it shuts off at will. This event is constant in all road, weather and driving conditions. This is a severe safety issue that appears to have been a Ram problem for years now. This is unacceptable and needs immediate and urgent intervention. In the event of an accident, whereas, this system is malfunctioning, I will immediately seek legal actions.

While driving on a crowded freeway a wooden structure fell from the ceiling of my motorhome and landed on the dashboard inches from my steering wheel. If it had hit my steering wheel or my hands, I would have been involved in a multiple vehicle collision. Thank God, I was able to safely pull over to the shoulder to check for damage. The beam was too heavy for me to move it. I drove it to a Camping World repair facility. The repair technician inspected the damage. He told me the support structure fell because it was held up by only one screw. Please note the comments for Job#4 in the repair invoice I hope to attach. I tried to upload some photos of the fallen structure, but I couldn't upload them. There were no warnings or symptoms of the defects. The damage was inspected and confirmed by the service technician of the New Braunfels, Texas Camping World. They reinforced the structure by mounting it with more screws, I do not know the size or number of screws installed. ( their is a typo in the job order document notes. I typed "Please Not comments for Job#4", it should be "Please note comments for Job#4". I anticipate a negative reaction by Thor Industries as I filed a Texas Lemon Law complaint because of many other defects and equipment failures in the motorhome. Part of the invoice includes a windshield wiper motor and gears that fell apart

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.