RoadVitals

2018 Thor Motor Coach Quantum

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
1
Latest Dec 25, 2019
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
2
Latest Mar 20, 2019
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0
1 injuries, 0 deaths reported

Overview

Our database contains 1 NHTSA owner-reported complaint for the 2018 Thor Motor Coach Quantum, most frequently naming the visibility category. 2 safety recalls have been issued covering this model year; and 7 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Visibility1100.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

2 campaigns cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
19V215000

EXTERIOR LIGHTING

Mar 20, 2019
97 units potentially affected
The defect: 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."
The risk: Without mid-ship marker lights, other drivers may underestimate the length of the vehicle, increasing the risk of crash.
The 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.
Thor Motor CoachManufacturer number RC000167View on NHTSA.gov
17V758000

EQUIPMENT

Nov 22, 2017
110,400 units potentially affected
The 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 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
The risk: In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
The 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.
Thor Motor CoachView on NHTSA.gov

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Visibility
Filed Dec 25, 2019
1 injury reported

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*JB

NHTSA ID
11291155
Incident
Dec 23, 2019
Mileage
6,000 mi

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

RC000218SADealer

ELECTRICAL SYSTEM

us. On certain model year 2012– 2018 5-ton Sprinter vehicles that were upfitted into campers or recreational vehicles (“RVs”), one or more of the rear-wheel speed sensors may experience an electrical failure, which potentially could lead to a disablement of the Electronic Stability Control (“ESP”) control unit functions. If ESP control unit functions are disabled, vehicle driving stability may be impacted under certain driving conditions, increasing the risk of a crash. This affects the following Thor Motor Coach products: model year 2013-2020 Chateau Citation & Four Winds Siesta, 2017-2019 Compass, 2017-2020 Four Winds, Gemini, Quantum, Chateau, & Synergy, and 2018-2020 Freedom Elite motorhomes

RC000218SAOwner

ELECTRICAL SYSTEM

On certain model year 2012– 2018 5-ton Sprinter vehicles that were upfitted into campers or recreational vehicles (“RVs”), one or more of the rear-wheel speed sensors may experience an electrical failure, which potentially could lead to a disablement of the Electronic Stability Control (“ESP”) control unit functions. If ESP control unit functions are disabled, vehicle driving stability may be impacted under certain driving conditions, increasing the risk of a crash. This affects the following Thor Motor Coach products: model year 2013-2020 Chateau Citation & Four Winds Siesta, 2017-2019 Compass, 2017-2020 Four Winds, Gemini, Quantum, Chateau, & Synergy, and 2018-2020 Freedom Elite motorhomes

RC000210SADealer

STEERING

It has been determined that on certain Mercedes-Benz Sprinter vehicles, the hydraulic power steering return line hoses might detach at their connection points under certain operating conditions, which could cause hydraulic fluid to leak, resulting in the loss of power steering assist. If the hydraulic power steering hose detaches, the driver will still have manual steering functionality, but increased steering effort will be needed, particularly at low speeds. Sudden loss of power steering assist as well as the loss of hydraulic steering fluid to the road surface may increase the risk of a crash. This affects the following Thor Motor Coach products: 2017-2020 Chateau, Chateau Citation, Four Winds, Gemini, Quantum, Siesta, & Synergy; 2018-2019 Compass; 2018-2020 Freedom Elite; 2021 Sanctuary & Tranquility

RC000210SAOwner

STEERING

Model/Model Year to Add: 2017 Chateau 2017-2018 Chateau Citation 2017 Four Winds 2017-2019 Gemini 2017-2019 Quantum 2017-2019 Four Winds Siesta 2017-2019 Synergy 2018 Compass 2018 Freedom Elite 2021 Sanctuary 2021Tranquility PLEASE NOTE- Due to being unaware that chassis recall notifications we provide to TMC Owners and Dealers would need to be submitted at time of release, this communication is a historical filing.

LTR 120519

EQUIPMENT

This letter stated that there were no Service Bulletins or Technical Service Bulletins issued for the month of November, 2019.

TSB 18-01 050418

ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT:ELECTRICAL

This bulletin provides instructions for the inverter control panel.

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Thor Motor Coach Quantum by model year
YearComplaintsRecallsInvestigationsIssue Index
2026010—
2025120—
2024210—
2023120—
2022120—
2021040—
2020070—
2019030—
2018Viewing120—
2017030—
2016110—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.