2018 Thor Motor Coach Ace Problems
- Complaints
- 5filed with NHTSA
- Median mileage
- 1,300miles, 4 complaints with mileage
- Recalls
- 3campaigns on record
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
Sources: NHTSA records for the 2018 Thor Motor Coach Ace (complaints, recalls, investigations). Report an error
NHTSA recorded 5 consumer complaints for the 2018 Thor Motor Coach Ace. The part named most often is electrical system, with 1 complaints (20% of the total), followed by engine (1) and steering (1). 4 of the complaints include a mileage, and 100% of those were filed for vehicles with under 50,000 miles; the median is 1,300 miles. NHTSA lists 3 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 system1 20%
- Engine1 20%
- Steering1 20%
- Suspension1 20%
Example complaints
Electrical system: “Underrated circuit breaker, 15 amp vice 20 amp, rating for rear air conditioner. Forward air conditioner, same model and size, has correct 20 amp circuit breaker. Overrated fuse d8, 20 amp vice 15 amp, on ceiling lights. This was found while stationary troubleshooting a water leak. I decided to see what spare fuses I may need and I noted these discrepancies.”
NHTSA complaint #11091394, filed 2018-05, 161 milesSuspension: “The contact owns a 2018 Thor Ace RV. The contact stated that while driving 70 MPH, the vehicle suddenly veered to the right and the driver was no longer able to properly steer the vehicle. A mobile mechanic was called to the location and diagnosed that the front passenger’s side wheel bearing had failed and needed to be replaced. The mechanic stated that the wheel bearing failure was due to insufficient lubrication within the wheel bearing. The front passenger’s side wheel bearing and spindle were replaced, and the vehicle was repaired. …”
NHTSA complaint #11585360, filed 2024-04, 13,500 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 300 and 2,300 miles.
Complaints by year filed
Fewer than 15 complaints, too few for a reliable trend.
Recalls and investigations
- 18V498000Jul 30, 2018Equipment › Recreational vehicle/trailer › Lpg systems › Lines and fittingsCovers: Thor Motor Coach Ace 2018
Thor Motor Coach (TMC) is recalling certain 2018 Thor Ace 27.2 recreational vehicles. The rubber liquid propane (LP) hose may sag and contact the tire in the wheel well.
- 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…
- 17V692000Nov 2, 2017Exterior lightingCovers: Thor Motor Coach Ace 2018, Hurricane 2018, Vegas 2018 +2 more
Thor Motor Coach (TMC) is recalling certain 2018 Ace, Axis, Hurricane, Windsport, and Vegas motorhomes. The wiring for the trailer lights may have been inserted into the wrong locations of the trailer lighting socket causing the trailer lights to not…
Recall details for the 2018 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 2018 Thor Motor Coach Ace have?
NHTSA recorded 5 consumer complaints for the 2018 Thor Motor Coach Ace as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 2018 Thor Motor Coach Ace is reported most often?
Electrical system is named most often, in 1 complaints (20% of the total), followed by engine with 1.
Has the 2018 Thor Motor Coach Ace been recalled?
NHTSA lists 3 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 2018 Thor Motor Coach Ace reported?
Among the 4 complaints that include a mileage, the median is 1,300 miles and the middle half falls between 300 and 2,300 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.