Summary: where do I start, except everyone is safe. Driving to disney with the family for christmas (daughter joining us from college) and we suddenly hear a loud bang from the cab; the starlight window blew out/ off. We were the only ones on the road (doing about 50 MPH) and nothing hit us, looks like the glue/seal just gave way! The other thing I was surprised there were sharp glass shards in the camper and the glass did not shatter into small squares one typically sees with safety glass. Honestly, it could have been worse if the glass panel would have blown inward it would have hit one of my daughters; as it is, they were hit with small shards of glass.*dt*dt
The worst 2018 Thor Motor Coach Quantum problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Visibility1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Visibility1
Recalls 2
Exterior lighting
- What is wrong
- Thor Motor Coach (TMC) is recalling certain 2018-2019 Quantum RW28 motorhomes. The vehicles may be missing the mid-ship marker lights. 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
- Without mid-ship marker lights, other drivers may underestimate the length of the vehicle, increasing the risk of crash.
- Remedy
- TMC will notify owners, and dealers will inspect and install mid-ship marker lights, as needed, free of charge. The recall began on April 25, 2019. Owners may contact TMC customer service at 1‑877‑855‑2867. TMC's number for this recall is RC000167.
Recall number 19V215000 · Recall details
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
Technical service bulletins for the 2018 Thor Motor Coach Quantum 7
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Us. On certain model year 2012– 2018 5-ton Sprinter vehicles that were upfitted into campers or...
- On certain model year 2012– 2018 5-ton Sprinter vehicles that were upfitted into campers or recreational...
- It has been determined that on certain Mercedes-Benz Sprinter vehicles, the hydraulic power steering...
- Model/Model Year to Add: 2017 Chateau 2017-2018 Chateau Citation 2017 Four Winds 2017-2019 Gemini...
- This letter stated that there were no Service Bulletins or Technical Service Bulletins issued for the...
- This bulletin provides instructions for the inverter control panel.
- This letter stated that there was one (1) Service Notification issued for the month of October, 2017.
What 2018 Thor Motor Coach Quantum owners say
Most recent owner complaints, unedited.
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Questions about the 2018 Thor Motor Coach Quantum
Is the 2018 Thor Motor Coach Quantum reliable?
Owners have filed 1 complaint about the 2018 Thor Motor Coach Quantum, close to a typical Quantum model year.
What is the most common problem with the 2018 Thor Motor Coach Quantum?
Windows, wipers and visibility, with 1 complaint.
How many recalls does the 2018 Thor Motor Coach Quantum have?
2 recalls, covering exterior lighting and equipment.
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