Hydrolic booster is leaking inside coach and dripping under brake pedal. I notice it more when engine is cold.
The worst 2014 Thor Motor Coach Ace problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Body1
- Brakes1
- Locks1
- Visibility1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Body1
- Brakes1
- Locks1
- Visibility1
Recalls 4
Equipment
- What is wrong
- 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: These extinguishers may become clogged, preventing the extinguisher from discharging as expected or excessive force may be needed to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit:
- Risk
- In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
- Remedy
- Thor will notify owners, instructing them to contact Kidde for a replacement fire extinguisher, free of charge. The recall began on January 15, 2018. Owners may contact Thor customer service at 1‑877‑500‑1020, or Kidde customer service toll-free at 1‑855‑262‑3540, or online at www.kidde.com and click on "Product Safety Recall" for more information.
Recall number 17V758000 · Recall details
Visibility: windshield wiper/washer
- What is wrong
- 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.
- Risk
- If the windshield wipers cannot be used, driver visibility would be reduced, increasing the risk of a crash.
- Remedy
- TMC will notify owners, and dealers will inspect the wiper system to verify it is installed correctly, repairing or replacing the system as necessary, free of charge. The recall began on September 27, 2017. Owners may contact TMC customer service at 1‑877‑855‑2867. TMC's number for this recall is RC000146. Note: Although some of the vehicles included in this recall have previously been remedied under recalls 17V‑096 or 17V‑162, the vehicles may need additional repairs under this campaign.
Recall number 17V555000 · Recall details
Visibility: windshield wiper/washer
- What is wrong
- 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 wipers to fail during use.
- Risk
- Failure of the windshield wipers may impair the driver's visibility, increasing the risk of a crash.
- Remedy
- TMC has notified owners, and dealers will inspect and tighten the wiper arm securing nuts, free of charge. The recall began on May 5, 2017. Owners may contact TMC customer service at 1‑877‑855‑2867.
Recall number 17V162000 · Recall details
Equipment: recreational vehicle/trailer
- What is wrong
- 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 in the presence of an ignition source. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 302, "Flammability of Interior Materials."
- Risk
- A flammable shower curtain may further fuel a fire, increasing the risk of injury.
- Remedy
- Thor will notify owners, and dealers will replace the shower curtains with curtains made with fire retardant, free of charge. The recall began on September 15, 2016. Owners may contact Thor customer service at 1‑877‑500‑1020. Thor's number for this recall is RC000121.
Recall number 16V571000 · Recall details
See all 4 recalls for the 2014 Thor Motor Coach Ace
Defect investigations
Trimark 060-1650 Door Latch Failures
On November 23, 2020, the Office of Defects Investigation (ODI) opened PE20021 to investigate allegations of inoperative Trimark THP 060-1650 door lock/latches originally equipped on model years (MY) 2015-2017 Class A and Class C motorhomes.ODI received forty-six Vehicle Ownerâs Questionnaires (VOQs) describing consumers being locked in or out of their vehicles.The door latch, containing a die-cast zinc plunger, was produced by Equality during calendar years 2014-2016. The die-cast may become porous and brittle over time and can break without warning, causing the vehicle owner to be unable to open the recreational vehicle door equipped with the latch.If the motorhome does not have any other doors such as some Class A models, occupants could be trapped inside, needing to climb out using the emergency exits. If locked out, owners would be unable to easily get in and retrieve children and pets. ODI analyzed the data provided by Trimark in response to its January 27, 2021 information request letter.Although an elevated failure rate was evident on a specific combination of plunger bolt, door lock/latch assembly and door, the data showed that most failures occurred within the first two years of service on the affected 2015-2017 vehicles.This data suggests that component failures generally would have already occurred.Further, ODI data reflects a downward trend in complaints after calendar year 2018 and for post- MY 2016 vehicles.This downward trend may be attributed Trimark's actions in 2016 such as changes in the manufacturing process of its zinc plunger component for the relevant population and its 2016 decision to switch to a steel plunger. In view of the nature of early-life failure, and failure rate trending downward for model years 2017 and newer, this Preliminary Evaluation (PE) is closed. The closing of this investigation does not constitute a finding by the federal safety agency that a safety-related defect does not exist.The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to
PE20021
Technical service bulletins for the 2014 Thor Motor Coach Ace 2
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
What 2014 Thor Motor Coach Ace owners say
Most recent owner complaints, unedited.
Bought rv fall 2017. While parked in garage, couldnt get in because door locked by itself. Had to break into rv and take door handle off as keys would not open it or manual operation would not open it. Refused to purchase another replacement for fear of this happening again. Very poor design. The pop aluminum slave broke with normal opening and closing of door. We just came back from a family vacation and would have hated to think what would/could have happened with 2 small dogs and 2 children. *tt
Tl* the contact owns a 2014 thor ace. While driving various speeds in the rain, the windshield wipers failed without warning. The vehicle was taken to the dealer where it was diagnosed that the relay box filled up with water. The vehicle's relays were replaced and the position of the box was moved to prevent water intrusion. The manufacturer was notified of the failure. The approximate failure mileage was 17,000.
Compare the 2014 Thor Motor Coach Ace
Other model years
Questions about the 2014 Thor Motor Coach Ace
Is the 2014 Thor Motor Coach Ace reliable?
Owners have filed 3 complaints about the 2014 Thor Motor Coach Ace, close to a typical Ace model year.
What is the most common problem with the 2014 Thor Motor Coach Ace?
Body and structure, with 1 complaint. Next is brakes (1).
How many recalls does the 2014 Thor Motor Coach Ace have?
4 recalls, covering equipment and visibility.
VIN decoder
See the problems and recalls for an exact car
Buying a used 2014 Thor Motor Coach Ace?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history