2018 Thor Motor Coach Ace problems, complaints & recalls
Most-reported problem areas: Visibility/Wiper (1) · Suspension:front:wheel Bearing (1) · Steering (1)
Safety recalls (3)
Equipment:recreational Vehicle/Trailer:lpg Systems:lines And Fittings 2018-07-30 · campaign 18V498000 · 167 vehicles
Defect: 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.
Risk: Contact with the tire may cause the LP hose to leak, increasing the risk of a fire.
Fix: TMC will notify owners, and dealers will inspect the rubber LP hose and replace it as necessary. Dealers will install additional p-clamps or relocate the existing p-clamps to properly secure the hose, free of charge. The recall began on August 22, 2018. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000158.
Equipment 2017-11-22 · campaign 17V758000 · 110,400 vehicles
Defect: 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
Risk: In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
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.
Exterior Lighting 2017-11-02 · campaign 17V692000 · 36 vehicles
Defect: 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 function properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."
Risk: If the trailer lights do not function as intended, it can increase the risk of a crash.
Fix: Thor has notified owners and dealers will re-wire a new connector, free of charge. The recall began on November 21, 2017. Owners may contact TMC customer service at 1-877-500-1020. TMC's number for this recall is RC000148.
Service bulletins (2)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Equipment 2019-12-05 · LTR 120519 · Service Bulletin/Repair Instructions
this letter stated that there were no service bulletins or technical service bulletins issued for the month of november, 2019.
Equipment:other:owners/Service/Other Manual 2017-11-03 · LTR 110317 · Service Bulletin/Repair Instructions
this letter stated that there was one (1) service notification issued for the month of october, 2017.
What owners report
2024-04-26 · Suspension:front:wheel Bearing · 13,500 mi“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 state…”
2024-03-30 · Power Train:automatic Transmission“transmission down shifts excessively on downhill grades…”
2019-05-06 · Visibility/Wiper · 300 mi“tl* the contact owns a 2018 thor ace motor home. the contact stated that the windshield fluid sprayer did not spray the fluid high enough to clean the entire windshield. the failure caused a build-up of debris on the windshield. the vehicle was taken to camping world of bakersfield (888-409-0053, located at 5500 wible rd, bakersfield, ca 93313) whe…”
2018-07-18 · Steering · 2,300 mi“tl* the contact owns a 2018 thor ace. while driving various speeds, the steering wheel was extremely loose, the auxiliary battery overheated, and the vehicle decelerated. in addition, the check engine warning indicator illuminated. upon opening the hood, the contact noticed acid emerging from the auxiliary battery. the vehicle was taken to camping …”
2018-05-02 · Electrical System · 161 mi“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 …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.