Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 1 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Service Brakes, Hydraulic. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports1 fire reports0 injury reports
What owners actually said
1 reports
5,000 miles · Jul 7, 2011
Service Brakes, HydraulicFire
TL* THE CONTACT OWNS A 2010 FOUR WINDS SERRANO RV. THE CONTACT STATED THAT THE HYDRAULIC LIFT SYSTEM FAILED. THE PUMP WAS BURNED AND ALMOST CASUED THE RV TO CATCH ON FIRE. THE CONTACT STATED THAT THE PUMP DID NOT HAVE A SLINGER OR A K-STRAIN, WHICH WOULD KEEP HYDRAULIC FLUID FROM FLOWING INTO THE MOTOR AND PREVENT BOTH THE MOTO…
Read full complaint
TL* THE CONTACT OWNS A 2010 FOUR WINDS SERRANO RV. THE CONTACT STATED THAT THE HYDRAULIC LIFT SYSTEM FAILED. THE PUMP WAS BURNED AND ALMOST CASUED THE RV TO CATCH ON FIRE. THE CONTACT STATED THAT THE PUMP DID NOT HAVE A SLINGER OR A K-STRAIN, WHICH WOULD KEEP HYDRAULIC FLUID FROM FLOWING INTO THE MOTOR AND PREVENT BOTH THE MOTOR AND PUMP FROM OVERHEATING. THE MOTOR HOME WAS TAKEN TO THE DEALER IN FEBRUARY WHERE THE PUMP WAS REPLACED BUT THE FAILURE RECURRED. THE VIN WAS UNAVAILABLE. THE FAILURE AND CURRENT MILEAGE WAS 5,000.
Thor Motor Coach (TMC) is recalling certain model year 2009-2011 Four Winds Hurricane and Windsport, 2009-2010 Four Winds Mandalay, 2010 Four Winds Magellan, and 2010-2011 Four Winds Serrano motorhomes manufactured May 2, 2009, to September 1, 2010. The affected vehicles are wired to be powered by a generator and are equipped with an Iota ITS-50R transfer switch that may fail when exposed to elevated electrical loads and used in higher ambient temperatures.
Consequence & remedy
Consequence: As the transfer switch fails, it may overheat, increasing the risk of a fire.
Remedy: TMC will notify owners, and dealers will replace the Iota ITS-50R transfer switch with a transfer switch from another manufacturer, free of charge. The recall began on November 23, 2015. Owners may contact Thor customer service at 1-877-855-2867. Thor's number for this recall is RC000106.
TMC IS RECALLING CERTAIN MODEL YEAR 2004-2011 DAMON AND FOUR WINDS RECREATIONAL VEHICLES EQUIPPED WITH 1200-SERIES NORCOLD REFRIGERATORS. THE POPULATION OF REFRIGERATORS BEING ADDRESSED CONTAINS EITHER A SENSING ALGORITHM OR THERMAL SWITCH TO SHUT OFF POWER TO THE REFRIGERATOR WHEN HIGH TEMPERATURES ARE DETECTED IN ORDER TO PREVENT A POTENTIAL FIRE. THE RESPONSE TIMES OF THE SENSOR ALGORITHM AND THERMAL SWITCH DEVICES TO STOP POWER ARE NOT SUFFICIENT.
Consequence & remedy
Consequence: THE SENSING ALGORITHM OR THERMAL SWITCH INSTALLED TO SHUT OFF POWER TO THE REFRIGERATOR WHEN HIGH TEMPERATURES ARE DETECTED DUE TO A POSSIBLE HYDROGEN GAS LEAK, MAY NOT SHUT-OFF IN SUFFICIENT TIME TO PREVENT A FIRE.
Remedy: TMC IS WORKING WITH NORCOLD TO IDENTIFY AND NOTIFY ANY AFFECTED OWNERS. OWNERS WILL BE INSTRUCTED TO CONTACT NORCOLD DEALERS TO RECEIVE THE REMEDY FREE OF CHARGE. PLEASE SEE NORCOLD'S DEFECT REPORT 10E-049 FOR ADDITIONAL NFORMATION. THE RECALL BEGAN ON JANUARY 12, 2011. OWNERS MAY CONTACT NORCOLD AT 1-800-767-9101 OR THOR MOTOR COACH AT 1-877-855-2867.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2010 Four Winds Serrano Problems, Complaints & Recalls | Skip That Year
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