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2018 Thor Motor Coach Gemini problems

The most common problem on the 2018 Thor Motor Coach Gemini is driver assistance and stability. Its complaint count is close to a typical Gemini model year.

Typical yearClose to a typical year
Owner complaints
2
Recalls
2
Service bulletins
6
Worst area
Driver assistance

The worst 2018 Thor Motor Coach Gemini problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

  • Driver assistance
    1

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Driver assistance
    1

Recalls 2

Electrical system: wiringReported June 19, 2018 · 158 vehicles affected
What is wrong
Thor Motor Coach (TMC) is recalling certain 2016-2018 Thor Gemini and Compass recreational vehicles built on a Ford chassis and equipped with a trailer tow module. Water can enter the tow modules and corrode the wiring causing issues such as rapidly flashing turn signals, loss of instrument panel display, an electrical short and possibly the deployment of seatbelt pretensioner.
Risk
An electrical short can increase the risk of a fire. Turn signal, instrument cluster or seatbelt pretensioner problems can increase the risk of a crash.
Remedy
Ford has notified owners, and Ford dealers will add a drainage hole in the driver's door stepwell and incorporate a fuse into the vehicle's wiring harness, free of charge. The recall began on June 19, 2018. Owners may contact TMC customer service at 1‑877‑855‑2867. TMC's number for this recall is RC000154.

Recall number 18V415000 · Recall details

EquipmentReported November 22, 2017 · 110,400 vehicles affected
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

See all 2 recalls for the 2018 Thor Motor Coach Gemini

Technical service bulletins for the 2018 Thor Motor Coach Gemini 6

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

What 2018 Thor Motor Coach Gemini owners say

Most recent owner complaints, unedited.

Filed Sep 1, 2021 · NY

There is a recall for my vehicle it is notice # 2021070007 despite your website stating there is none. My problem with your recall is that it only applies to the rear wheel sensors on the Mercedes sprinter chassis. I've had both front and rear wheel sensor failures on my sprinter both failures coming with less 5000 miles on my sprinter which the Mercedes dealership refused to repair. I don't why the federal safety agency would limit the recall to just the rear sensors when the front sensors are exactly the same as the rear sensors and are failing also. These are dangerous failures which disable the safety systems on the vehicles.

Filed Aug 26, 2020 · Driver assistance · 8,000 miles · NY

The rear speed sensor on my 2018 thor gemini rv with the mercedes benz 3500 sprinter chassis went bad knocking out my ABS, stability control and cruise control on a long trip. I was on the highway doing a steady 60-65 MPH. My sprinter only has 8,000 miles on it. I've read this is a recurring problem on these vehicles so I thought I would report it.

Compare the 2018 Thor Motor Coach Gemini

Other model years

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Questions about the 2018 Thor Motor Coach Gemini

Is the 2018 Thor Motor Coach Gemini reliable?

Owners have filed 2 complaints about the 2018 Thor Motor Coach Gemini, close to a typical Gemini model year.

What is the most common problem with the 2018 Thor Motor Coach Gemini?

Driver assistance and stability, with 1 complaint.

How many recalls does the 2018 Thor Motor Coach Gemini have?

2 recalls, covering electrical system and equipment.

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