2015 Thor Motor Coach Ace Problems
- Complaints
- 5filed with NHTSA
- Median mileage
- 20,500miles, 4 complaints with mileage
- Recalls
- 4campaigns on record
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
Sources: NHTSA records for the 2015 Thor Motor Coach Ace (complaints, recalls, investigations). Report an error
NHTSA recorded 5 consumer complaints for the 2015 Thor Motor Coach Ace. The part named most often is electrical system, with 2 complaints (40% of the total), followed by body and structure (2) and latches, locks and linkages (1). 4 of the complaints include a mileage, and 100% of those were filed for vehicles with under 50,000 miles; the median is 20,500 miles. Of all complaints, 1 a fire, according to the filers. NHTSA lists 4 recall campaigns and 2 technical service bulletins for this model year.
This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Electrical system2 40%
- Body and structure2 40%
Example complaints
Electrical system: “After smelling a burnt smell, I investigated and found burnt and melted wire nuts within the power transfer switch. Numerous same issues are reported on the thor rv blog site. It appears that theh wire nuts commonly used in household construction come loose when used in a moving vehicle.”
NHTSA complaint #11114432, filed 2018-07, 21,000 milesBody and structure: “The contact owns a 2015 Thor Motor Coach ACE. When the contact attempted to open the main entrance door, the latched failed to open and fractured. The contact had to use pliers to get the lock to turn, but failed. The contact mentioned that the door knob was made of cast zinc. He attempted to remove the screw, but the door failed to open. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 15,000. The VIN was unavailable.”
NHTSA complaint #11021492, filed 2017-09, 15,000 milesMileage when problems were reported
100% of the 4 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 20,000 and 21,000 miles.
Complaints by year filed
Fewer than 15 complaints, too few for a reliable trend.
Recalls and investigations
- 17V758000Nov 22, 2017EquipmentCovers: Thor Motor Coach Ace 2011–2018, Majestic 2003–2018, Windsport 2003–2018 +26 more
Thor Motor Coach (Thor) is recalling various 2003-2018 recreational vehicles, equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers. See a list of the affected trailer models at…
- 17V555000Sep 7, 2017Visibility › Windshield wiper/washerCovers: Thor Motor Coach Ace 2014–2016, Tuscany XTE 2014–2016, Windsport 2014–2016 +11 more
Thor Motor Coach (TMC) is recalling certain 2014-2016 Ace, Challenger, Daybreak, Hurricane, Miramar, Outlaw, Windsport, Palazzo, Tuscany, and Tuscany XTE motorhomes. The windshield wipers may fail due to the system being incorrectly installed or secured.
- 17V162000Mar 13, 2017Visibility › Windshield wiper/washerCovers: Thor Motor Coach Ace 2014–2016, Windsport 2014–2016, Challenger 2014–2016 +7 more
Thor Motor Coach (TMC) is recalling certain 2014-2015 ACE, Hurricane, Challenger, Daybreak, Miramar, Outlaw, and Windsport motorhomes. These vehicles have windshield wiper systems that may have been improperly installed and secured, possibly causing the…
- 16V571000Aug 2, 2016Equipment › Recreational vehicle/trailerCovers: Thor Motor Coach Ace 2012–2017, Siesta 2012–2013, Four Winds 2017 +1 more
Thor Motor Coach (Thor) is recalling certain model year 2012-2017 Ace, 2013 Citation, 2012-2013 Siesta and 2017 Four Winds and Road Bear Rental motorhomes. The affected vehicles are equipped with shower curtains that may not adequately resist catching fire…
Recall details for the 2015 Thor Motor Coach Ace → · Check a VIN at nhtsa.gov/recalls
NHTSA investigations
- PE20021Trimark 060-1650 Door Latch FailuresClosed · Nov 23, 2020
Technical service bulletins
TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 2 on record; the latest 2 are shown.
- 10169044Dec 5, 2019Equipment. This letter stated that there were no Service Bulletins or Technical Service Bulletins issued for the month of November, 2019.
- 10124236Nov 3, 2017Equipment. This letter stated that there was one (1) Service Notification issued for the month of October, 2017.
Other model years of the Thor Motor Coach Ace
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2018 | 5 | 1,300 | 3 | — | — | — | Not enough data |
| 2016 | 7 | 8,700 | 5 | — | — | — | Not enough data |
| 2015 | 5 | 20,500 | 4 | — | — | — | Not enough data |
All Thor Motor Coach Ace model years
Frequently asked questions
How many NHTSA complaints does the 2015 Thor Motor Coach Ace have?
NHTSA recorded 5 consumer complaints for the 2015 Thor Motor Coach Ace as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 2015 Thor Motor Coach Ace is reported most often?
Electrical system is named most often, in 2 complaints (40% of the total), followed by body and structure with 2.
Has the 2015 Thor Motor Coach Ace been recalled?
NHTSA lists 4 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
At what mileage are problems with the 2015 Thor Motor Coach Ace reported?
Among the 4 complaints that include a mileage, the median is 20,500 miles and the middle half falls between 20,000 and 21,000 miles; 100% were filed for vehicles with under 50,000 miles.
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.