2015 Thor Motor Coach Ace problems: recalls, complaints and what to check
NHTSA has 1 recall and 5 owner complaints on file for the 2015 Thor Motor Coach Ace, including 1 fire. Here is what they are, what a technician checks for each kind of fault, and how to look one over before you buy it.
Other: 1 recall
Recall 17V758000 (22/11/2017): EQUIPMENT
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: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17V758-5764.pdf. 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: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf
Fix: 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.
12 volt and 120 volt electrical: 2 complaints
What a tech checks: Voltage drop, grounds, the converter and the transfer switch. Melted shore-cord plugs and bad grounds cause most of the electrical complaints techs actually see. Before you buy: Battery at rest, converter output on shore power, GFCI test, every outlet.
12 V electrical lessons · 120 V and generator lessons · Wiring diagrams
Structure, roof and leaks: 2 complaints
What a tech checks: Roof sealant, seams, window and slide seals, and the frame. Water intrusion shows up as delamination, soft floors and stained ceilings months after the leak started. Before you buy: Press the sidewalls and walk the floor; look at every seam and seal.
Roof, leaks and body lessons · Seals and leaks guide
Doors, windows, steps and lights: 1 complaint
What a tech checks: Mostly adjustments and wear: steps that stop halfway on a bad switch, doors out of alignment after a slide shifted, exterior lights with a corroded ground. Before you buy: Every door, lock, window and light.
What owners reported to NHTSA
09/05/2017, STRUCTURE: TL* 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. TH
07/29/2018, 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.
05/31/2018, LATCHES/LOCKS/LINKAGES: CSPC: RV DOOR LATCH BROKE. WAS NOT ABLE TO EXIT THE VEHICLE. LATCH FRACTURED AND COULD NOT BE ACTUATED BY THE HANDLES. *DT *JS *TT
05/26/2018, STRUCTURE: DOOR LATCH FAILED. WAS NOT ABLE TO EXIT VEHICLE. LATCH BROKE SO THAT LEVERS DID NOT ACTUATE THE LATCH.
01/14/2025, ELECTRICAL SYSTEM: We have been experiencing multiple issues with the electrical system in our RV. There was a serious safety event to took place, where the wiring box under the bed created smoke and we could smell plastic burning. When investigated by my husband, he found that the box under the bed that housed all the wires for the RV had burn marks on the inside of the box and the wires and wire caps had melted. Then we started havin
Looking at a 2015 Thor Motor Coach Ace?
The Buyer's Check walks you through it on your phone: what to ask, the outside walk-around, water damage, every system on every power source, with the recalls above built in. You get a report that says what's a walk-away and what to negotiate on.
Checked against NHTSA 2026-10-23. Recall repairs are free at an authorized dealer. Complaints are owner reports to NHTSA and are not verified.