Thor Motor Coach ACE problems and owner complaints

WHILE DRIVING A 2013 THOR ACE MOTOR HOME AT 60 MPH I HEARD BEEPING NOISE IN THE DRIVERS AREA. WHILE TRYING TO FIGURE OUT THE SOURCE I DISCOVERED THE MOTOR HOME WAS ON FIRE UNDER THE RIGHT FRONT. THE LEVELING SYSTEM HAD TURNED ON THE HYDRAULIC PUMP AND ONE OF THE RETURN LINES WAS LEAKING. THE RESULTING HIGH PRESSURE HYDRAULIC FLUID WAS SPRAYING ON THE EXHAUST AND IGNITING. THE LEVELING SYSTEM IS USED FOR LEVELING THE VEHICLE WHILE PARKED. APPARENTLY THE SYSTEM IS DESIGNED SO THAT IF IT DETECTS ONE OF THE JACKS LOWERING WHILE DRIVING IT APPLIES H…

Owner-reported narrative. 3,800 miles reported. Look up ODI 10532936 at NHTSA ↗

I WAS DRIVING ON 8E FREEWAY AT 55 MPH WHEN I NOTICED THE INTERIOR OF THE MOTORHOME FILLING WITH BLACK SMOKE AND THE SMOKE DETECTOR STARTED GOING OFF. BLACK SMOKE WAS POURING OFF THE BACK OF THE MOTORHOME AS WELL. I PULLED OVER TO THE SHOULDER AND GOT MY WIFE TWO GRANDKIDS AND TWO DOGS OUT OF THE VEHICLE. UPON EXITING I FOUND THE RIGHT FRONT OF THE VEHICLE ON FIRE AS WELL AS FIRE DRIPPING FROM THE EXHAUST TO THE GROUND. AFTER GETTING THE FIRE OUT, I DISCOVERED THE VEHICLE LEVELING SYSTEM HAD A HYDRAULIC LINE FAILURE AND THE HYDRAULIC PUMP WAS SP…

Owner-reported narrative. 3,318 miles reported. Look up ODI 10533567 at NHTSA ↗

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 gen…

Owner-reported narrative. Look up ODI 11635895 at NHTSA ↗

THE ELECTRICAL WIRING WITHIN THE MOTOR COACH IS NOT TO NFPA'S NATIONAL ELECTRICAL CODE NOR IS IT WIRED TO THOR'S OWN FACTORY SPECIFICATIONS. IN ADDITION, THE APPLIANCES WITHIN THE COACH ARE NOT WIRED TO THE SPECIFICATIONS OF THE APPLIANCE MANUFACTURER. OUR MOTOR COACH EXPERIENCED A SHORTED WIRE IN THE WATER HEATER JUNCTION BOX DUE TO IMPROPER SPLICING IN AN AREA WHERE NO SPLICING SHOULD HAVE BEEN NECESSARY. THAT SAME ELECTRICAL CIRCUIT WHICH, PER THE NEC AND THOR'S FACTORY SPECIFICATIONS SHOULD HAVE BEEN ON A DEDICATED BREAKER, WAS NOT ON A DED…

Owner-reported narrative. Look up ODI 11084963 at NHTSA ↗

Transmission down shifts excessively on downhill grades

Owner-reported narrative. Look up ODI 11580221 at NHTSA ↗

TL* THE CONTACT OWNS A 2018 THOR ACE. WHILE DRIVING VARIOUS SPEEDS, THE STEERING WHEEL WAS EXTREMELY LOOSE, THE AUXILIARY BATTERY OVERHEATED, AND THE VEHICLE DECELERATED. IN ADDITION, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. UPON OPENING THE HOOD, THE CONTACT NOTICED ACID EMERGING FROM THE AUXILIARY BATTERY. THE VEHICLE WAS TAKEN TO CAMPING WORLD OF ALBUQUERQUE (14303 CENTRAL AVE NW, ALBUQUERQUE, NM 8712[phone removed]) WHERE IT WAS DIAGNOSED THAT THE STABILIZER FOR THE FRONT AND REAR NEEDED TO BE REPLACED ALONG WITH THE AUXILIARY BATTER…

Owner-reported narrative. 2,300 miles reported. Look up ODI 11112225 at NHTSA ↗