The slide motor needed replacing. It was replaced once under warranty and the same motor required replacement again. Shortly out of warranty. Out of warranty I was able to determine that water from the roof was able to leak into the motor housing and was causing the motors to short out. The motors required replacing are lippert high torque 500:1 motor; in-wall slide-out #287298
The worst 2016 Thor Motor Coach Ace problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Locks2
- Body1
Specific symptoms reported on the 2016 Thor Motor Coach Ace
Recalls 5
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
Power train: automatic transmission
- What is wrong
- Thor Motor Coach (TMC) is recalling certain model year 2016 Ace, Challenger, Hurricane, Miramar, Outlaw, and Windsport vehicles manufactured July 14, 2015, to October 16, 2015. Due to an incorrect shift cable bracket and an improper shift cable adjustment, the affected vehicles can be shifted out of 'PARK' without applying the brakes.
- Risk
- If the vehicle can be shifted into reverse without the brakes being applied, the vehicle may unintentionally move, increasing the risk of a crash.
- Remedy
- Ford will notify owners on TMC's behalf, and Ford dealers will replace the transmission shift control bracket and adjust the transmission shift cable, free of charge. The recall began on November 12, 2015. Owners may contact TMC customer service at 1‑877‑500‑1020. TMC's number for this recall is RC000110.
Recall number 15V719000 · Recall details
See all 5 recalls for the 2016 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 2016 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 2016 Thor Motor Coach Ace owners say
Most recent owner complaints, unedited.
The door lock mechanism broke. The metal broke resulting in the lock becoming unusable. Door needed a full replacement lock. New trimark rv entry door lock 60-650 was replaced to fix the issue.
On september 22, 2018 I found myself trapped inside my 2016 thor ace 30.1 motorhome. The door lever the door, which was not locked, would not open. It was obvious from the way the door level pulled that it was no longer connected to the latch. Fortunately at 73 years of age I am still agile enough to climb out the rear escape window, something that my wife due to some physical limitations could never have done. Upon taking the motorhome to camping world their technician had to literally drill out the material around the door lever to get to the latch so it could be retracted and a new door latch unit installed. The technician indicated this was a common problem due to the poor quality of the 'pot metal' in the mechanism. Based on a quick internet search I discovered numerous cases of owners complaining of similar experiences. The motorhome, at this time only had 5,500 miles thus the problem obviously was not related to age or extensive use. This is an extreme safety hazard due to the poor quality of this component. Based on the technicians comment and my internet search I am sure thor knows about the situation. Since the replacement door latch mechanism appears to be identical to the original we experience a high level of discomfort as we travel in our thor motorhome. Hopefully this sub quality component does not fail again in an emergency situation resulting in a life threatening situation. Sincerely, [xxx] and [xxx] [xxx] huntley, il [xxx] [xxx] *dt updated 10/10/18*jb update 10/18/18 *dt parts of this document have been redacted to protect personally identifiable information pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).
The exterior door lock made by tri-mark broke trapping me and my family inside. The rv was parked at the time. The door lock had to be disassembled for us to be able to open the door. Had their been a fire or some other emergency this would have caused loss of life. This is a well known issue for many of their locks.
Door lock mechanism broke while vehicle stationary camping. Family of 5 locked out, dog locked in 101 degree weather, had to break window and break door mechanism to get dog out. Known recurrent problem. We could have as easily been locked in. Could not open from either side. Trimark is lock brand name. Metal part inside snapped in two.
Tl* the contact owns a 2016 thor ace (model 29.4) recreational vehicle. The contact stated that the passenger side rear entry door was unable to be opened from inside or outside the vehicle due to the door latch being fractured. The vehicle was not taken to a dealer or independent mechanic for diagnostic testing or repairs. The contact left a voicemail with the thor manufacturer at 1‑877‑855‑2867, alerting them of the failure. The contact was awaiting a call back. The VIN was not available. The failure mileage was 14,391.
Windshield wipers stopped working while driving on I-95 in nc doing about 65 MPH in a very heavy rain storm at night. The nut that holds the wiper arm assembly to the wiper motor came off and the wiper arm assembly seperated from the wiper motor causing the windshield wipers to stopped working. Visibility when to zero. Luckily there was an exit to get off I-95. Once I troubleshoot the problem I re-attached the wiper arm assembly to the wiper motor and I then replaced the nut with a replacement nut. The average person does not have an assortment replacements nut and would have been stuck if not in a accident.
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Questions about the 2016 Thor Motor Coach Ace
Is the 2016 Thor Motor Coach Ace reliable?
Owners have filed 7 complaints about the 2016 Thor Motor Coach Ace, 2.3 times a typical Ace model year.
What is the most common problem with the 2016 Thor Motor Coach Ace?
Doors, latches and locks, with 2 complaints. Next is body (1).
How many recalls does the 2016 Thor Motor Coach Ace have?
5 recalls, covering equipment, visibility and power train.
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