Thor Motor Coach MIRAMAR problems and owner complaints

WE HAD AN ISSUE WITH THE OUTSIDE KITCHEN ON OUR 2015 MIRIMAR. ON OUR LAST OUTING, ONE OF THE STRUTS THAT HOLD THE DOOR OPEN BROKE OFF. NOBODY WAS HURT, BUT IT WAS SCARY. I TOOK A LOOK AT THE STRUT AND IT LOOKED FINE. HOWEVER, THE BRACKET ON THE DOOR WAS BADLY BENT. UPON CLOSER INSPECTION, I FOUND THE THREE REMAINING BRACKETS WERE ALSO BENT. PLEASE UNDERSTAND, WE NEVER DID ANY THING WITH THIS DOOR OTHER THAN OPEN AND CLOSE IT. IN ORDER TO BE ABLE TO KEEP USING THE KITCHEN, I THOUGHT ABOUT USING THE BRACKET OFF THE DOOR STRUT ON THE BATTERY COMP…

Look up ODI 10918145 at NHTSA ↗

TL* THE CONTACT OWNS A 2017 THOR MIRAMAR 34.4. WHILE DRIVING 60 MPH, THE ALUMINUM SKIN ON THE COMPARTMENT DOOR ATTACHED TO THE OUTDOOR KITCHEN DETACHED FROM THE VEHICLE, FOLLOWED BY THE ACTUAL DOOR. THE CONTACT PULLED THE RV OVER, DROVE TO A SERVICE STATION, AND USED DUCT TAPE TO COVER THE PARTS OF THE VEHICLE THAT DETACHED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND INFORMED THE CONTACT THAT THE VEHICLE'S WARRANTY WAS EXPIRED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE DEALER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS UNKNOWN.*DT *A…

Look up ODI 11240887 at NHTSA ↗

WE PURCHASED THE MOTOR HOME FROM CAMPING WORLD IN JUNE OF 2025. IT WAS TRANSPORTED TO TEXAS AND WE FLEW TO PICK IT UP. WHEN WE WENT TO VIEW THE MOTOR HOME THERE WAS TAPE ON TWO OF THE WINDOWS, AND WHEN I QUESTIONED WHY, THEY STATED THAT THE BRACKET BROKE AND THEY WOULD FIX IT. WHEN WE PICKED IT UP TO DRIVE HOME THE WINDOWS NO LONGER HAD TAPE ON IT AND WE ASSUMED THAT THEY HAD REPLACED THE BRACKETS. WE WERE HALF WAY BACK TO WEST VIRGINIA WHEN WE REALIZED THAT ALL THEY HAD DONE WAS PUT COMMAND STRIPS ON THE WINDOWS TO HOLD THEM. ONE OF THE…

Look up ODI 11737241 at NHTSA ↗

DRIVER SEAT UNSTABLE WHILE DRIVING. WIPERS DO NOT WORK PROPERLY. PROPANE HEATER SEVERELY OVER HEATS UNDER CABINET THAT IS RIGHT NEXT TO OVEN/STOVE CAUSING A FIRE HAZARD. HOOD OF VEHICLE AND SIDE LOCKERS OPEN UNEXPECTEDLY AND LOCKING MECHANISMS DO NOT WORK PROPERLY BOTH WHILE STATIONARY AND IN MOTION. THE CONSUMER STATED THE FLOORING, LEVELING JACKS,DOORS AND WALLS, SLIDES, LADDER,AWNING, MOLDING, DROP DOWN BED,CUP HOLDERS, STORAGE LOCKERS, CABINET, AC UNIT, WIPERS ENTRY DOOR AND SIDEWALLS WERE ALSO DAMAGED. *JS

Look up ODI 11073492 at NHTSA ↗

EVERY TIME I DRIVE THE RV AND A CHANGE IN TEMPERATURE AND HUMIDITY OCCURS THE WINDSHIELD AND BOTH SIDE WINDOWS FOG VERY BAD, THEY WILL NOT DEFROST AND YOU CANNOT SEE WHILE DRIVING DOWN THE ROAD, YOU CANNOT SEE THROUGH THE MIRRORS ON EITHER SIDE BECAUSE OF THIS, IT DOES NOT MATTER WHAT ROAD YOU ARE ON. NOT ENOUGH AIRFLOW FROM THE DEFROSTER AND NOT ENOUGH VENTS ON THE FRONT WINDSHIELD, IT HAS NO SIDE VENTS AT ALL. I HAVE REPORTED TO THE MANUFACTURE BEFORE AND THEY SAY IT MEETS THE INDUSTRY STANDARDS. *TR

Look up ODI 11321305 at NHTSA ↗

WE PURCHASED THE MOTOR HOME FROM CAMPING WORLD IN JUNE OF 2025. IT WAS TRANSPORTED TO TEXAS AND WE FLEW TO PICK IT UP. WHEN WE WENT TO VIEW THE MOTOR HOME THERE WAS TAPE ON TWO OF THE WINDOWS, AND WHEN I QUESTIONED WHY, THEY STATED THAT THE BRACKET BROKE AND THEY WOULD FIX IT. WHEN WE PICKED IT UP TO DRIVE HOME THE WINDOWS NO LONGER HAD TAPE ON IT AND WE ASSUMED THAT THEY HAD REPLACED THE BRACKETS. WE WERE HALF WAY BACK TO WEST VIRGINIA WHEN WE REALIZED THAT ALL THEY HAD DONE WAS PUT COMMAND STRIPS ON THE WINDOWS TO HOLD THEM. ONE OF THE…

Look up ODI 11737241 at NHTSA ↗

This is a Class A Motorhome. It has one door for entering and exiting the camper. The door handle to get in and out is a horrible design. As a firefighter it scares me and I plan to change it as soon as I find a perfect match. If you are outside trying to get in you can not open the door easily. You have to pull it with 2 hands and violently force, yank, pull the door open. This is definitely a safety concern. This specific type of door handle is a well known issue with Thor motor homes. There has been so many complaints and concerns about it b…

Look up ODI 11528053 at NHTSA ↗

TRANSMISSION DOWNSHIFTED UNEXPECTEDLY CAUSING ENGINE TO REV BEYOND 4K RPMS RESULTING IN DRIVER ALMOST LOSING CONTROL. THE ONLY WAY TO STOP IT WAS TO PUSH THE GAS PEDAL DOWN WHICH INCREASED THE RPMS EVEN MORE AND ADDING TO CONTROL ISSUE. THIS OCCURRED MANY TIMES ON HILLS WITH OR WITHOUT CRUISE CONTROL. CAUSED PANIC IN THE VEHICLE BY PASSENGERS WHO THOUGHT THE ENGINE WAS GOING TO EXPLODE AND ALSO THAT THE BRAKES HAD FAILED. FORD SAYS THIS IS BUILT IN AND CANNOT BE CHANGED. I SAY IF YOU NEED THE ENGINE TO SLOW YOU THEN YOU PROBABLY HAVE UNDER SIZE…

Look up ODI 11217784 at NHTSA ↗

See attached document for complaint.

Look up ODI 11642156 at NHTSA ↗

TL* THE CONTACT OWNS A 2015 THOR MIRAMAR. WHILE MAKING A RIGHT TURN, THE CONTACT HEARD AN ABNORMAL NOISE NEAR THE FRONT END ON THE DRIVER SIDE. THE CONTACT OBSERVED THAT THE FRONT DRIVER SIDE WHEEL WAS TILTED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE NUT THAT HOLDS THE WHEEL TO THE AXLE DETACHED FROM THE VEHICLE. IN ADDITION, THE OUTER BEARING WAS FRACTURED. AS A RESULT, THE SPINDLE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WA…

Look up ODI 10735305 at NHTSA ↗

RV- 2022 Thor Miramar 34.5 With 2021 Ford F53 Chassis I appreciate your attention because this is the BIGGEST issue and safety concern. We spent over 160k on this class A that doesn't even feel safe to drive. As the driver or passenger, we are white knuckled. There is no stability when driving. The steering wheel is all over the place. A gust of wind pushes us off the road, every bump completely jars the camper. This is absolutely horrible. It is unsafe and scary. We are very experienced drivers and have drove large trucks and fire trucks. B…

Look up ODI 11536248 at NHTSA ↗

PASSENGGER SIDE WIPER FALLS DOWN BELOW WINDSHIELD CASUING DRIVNERS SIDE TO BIND. THIS HAPPENED WHILE DRIVING IN A HEAVY RAIN STORM COMING BACK FROM OHIO. I FOUND HARDWARE ON THE PASSENGER SIDE WHERE IT CONNECTS TO A PIVOT THAT WAS BROKEN. I CONTACTED THOR AND WAS TOLD THE VEHCLE WAS OUT OF WARRANTY AND THEY HAD NEVER HEARD OF THE PROBLEM UPDATED 04/18/17 *CN

Look up ODI 10953508 at NHTSA ↗

I HAVE HAD SEVERAL WIPER FAILURES ON MY MOTORHOME THAT THOR HAS NOT BEEN ABLE TO CORRECT. THE FIRST HAPPENED IN JANUARY 2015 WHEN DRIVING DOWN THE ROAD AT 55MPH DURING A NORMAL RAIN, THE DRIVERS SIDE WIPER ARM OVER EXTENDED CAUSING THE WIPERS TO BE OUT OF ALIGNMENT. THIS CAUSED THE PASSENGER SIDE TO INTERFERE WITH THE DRIVERS SIDE AND THE WIPERS CEASED TO FUNCTION. IT WAS TAKEN TO A DEALER WHERE THEY INSTALLED A NEW WIPER MOTOR. EVERYTHING WAS FINE TILL THE 2ND TIME IN JULY 2015, THE DRIVERS SIDE OVER EXTENDED AGAIN CAUSING THE SAME CONDITIO…

Look up ODI 10971294 at NHTSA ↗

DRIVER SEAT UNSTABLE WHILE DRIVING. WIPERS DO NOT WORK PROPERLY. PROPANE HEATER SEVERELY OVER HEATS UNDER CABINET THAT IS RIGHT NEXT TO OVEN/STOVE CAUSING A FIRE HAZARD. HOOD OF VEHICLE AND SIDE LOCKERS OPEN UNEXPECTEDLY AND LOCKING MECHANISMS DO NOT WORK PROPERLY BOTH WHILE STATIONARY AND IN MOTION. THE CONSUMER STATED THE FLOORING, LEVELING JACKS,DOORS AND WALLS, SLIDES, LADDER,AWNING, MOLDING, DROP DOWN BED,CUP HOLDERS, STORAGE LOCKERS, CABINET, AC UNIT, WIPERS ENTRY DOOR AND SIDEWALLS WERE ALSO DAMAGED. *JS

Look up ODI 11073492 at NHTSA ↗

EVERY TIME I DRIVE THE RV AND A CHANGE IN TEMPERATURE AND HUMIDITY OCCURS THE WINDSHIELD AND BOTH SIDE WINDOWS FOG VERY BAD, THEY WILL NOT DEFROST AND YOU CANNOT SEE WHILE DRIVING DOWN THE ROAD, YOU CANNOT SEE THROUGH THE MIRRORS ON EITHER SIDE BECAUSE OF THIS, IT DOES NOT MATTER WHAT ROAD YOU ARE ON. NOT ENOUGH AIRFLOW FROM THE DEFROSTER AND NOT ENOUGH VENTS ON THE FRONT WINDSHIELD, IT HAS NO SIDE VENTS AT ALL. I HAVE REPORTED TO THE MANUFACTURE BEFORE AND THEY SAY IT MEETS THE INDUSTRY STANDARDS. *TR

Look up ODI 11321305 at NHTSA ↗

While driving on the highway at 60 MPH in a thunderstorm, the passenger windshield wiper collided with the driver's windshield wiper and became entangled with each other. I completely lost all wiper function and could no longer see the road. This was a life-threatening situation, with traffic all around us, and luckily, I was able to pull off the highway after about a quarter of a mile until the rain subsided. My wife and two grandchildren were in the RV at the time and this could have been a disaster. I called Thor this morning and they are ti…

Look up ODI 11541103 at NHTSA ↗

TRANSMISSION DOWNSHIFTED UNEXPECTEDLY CAUSING ENGINE TO REV BEYOND 4K RPMS RESULTING IN DRIVER ALMOST LOSING CONTROL. THE ONLY WAY TO STOP IT WAS TO PUSH THE GAS PEDAL DOWN WHICH INCREASED THE RPMS EVEN MORE AND ADDING TO CONTROL ISSUE. THIS OCCURRED MANY TIMES ON HILLS WITH OR WITHOUT CRUISE CONTROL. CAUSED PANIC IN THE VEHICLE BY PASSENGERS WHO THOUGHT THE ENGINE WAS GOING TO EXPLODE AND ALSO THAT THE BRAKES HAD FAILED. FORD SAYS THIS IS BUILT IN AND CANNOT BE CHANGED. I SAY IF YOU NEED THE ENGINE TO SLOW YOU THEN YOU PROBABLY HAVE UNDER SIZE…

Look up ODI 11217784 at NHTSA ↗

You have a Technical Service Bulletin 20-2370 issued 09 November 2020 for this vehicle, so no notice to consumers until the issue arises and their mechanic figures it out. The issue causes an extreme heat build up that melts spark plug wires, causes loss of power and/or misfiring, and could cause a vehicle fire which is not noted in your bulletin. This should have been a recall ceasing sales until affected Ford F-53s were repaired. I encountered this issue while on 38 in the San Bernardino National Forest. This was a major safety issue with…

Look up ODI 11425335 at NHTSA ↗

DRIVER SEAT UNSTABLE WHILE DRIVING. WIPERS DO NOT WORK PROPERLY. PROPANE HEATER SEVERELY OVER HEATS UNDER CABINET THAT IS RIGHT NEXT TO OVEN/STOVE CAUSING A FIRE HAZARD. HOOD OF VEHICLE AND SIDE LOCKERS OPEN UNEXPECTEDLY AND LOCKING MECHANISMS DO NOT WORK PROPERLY BOTH WHILE STATIONARY AND IN MOTION. THE CONSUMER STATED THE FLOORING, LEVELING JACKS,DOORS AND WALLS, SLIDES, LADDER,AWNING, MOLDING, DROP DOWN BED,CUP HOLDERS, STORAGE LOCKERS, CABINET, AC UNIT, WIPERS ENTRY DOOR AND SIDEWALLS WERE ALSO DAMAGED. *JS

Look up ODI 11073492 at NHTSA ↗

The contact owns a 2019 Ford F53. The contact stated that the lower bottom of the window was flapping. The contact used liquid adhesive to secure the windows. The windows were taped shut by the owner. The dealer was contacted and declined the repair. The dealer stated the failure was not associated with NHTSA Campaign Number: 21V522000 (Structure, Equipment). The manufacturer was contacted and referred the contact to the local dealer for assistance. The failure mileage was approximately 11,550.

Look up ODI 11725837 at NHTSA ↗