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2018 Thor Motor Coach QuantumProblems, recalls & complaints

NHTSA has logged 1 owner complaint about the 2018 Thor Motor Coach Quantum, most often about the visibility/wiper. It is covered by 2 safety recalls, and for recall 17V-758 the manufacturer reports only 12% of affected cars repaired.

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CarFlaw IndexNot enough dataHigher is better (0–100)
Safety recalls2Lowest repair rate 12%Owner complaints11 with a crash, fire or injuryTypical failure mileage6kVisibility/wiper, median miles

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through December 25, 2019. Updated daily.

Complaints by system

Where the 2018 Thor Motor Coach Quantum has problems

1 complaint grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Visibility/wiper11

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

2 recalls

2018 Thor Motor Coach Quantum recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

64%repaired · 2020 Q3

Exterior lighting

Recall 19V-215 · Mar 20, 2019 · 97 vehicles · 62 repaired

Risk. Without mid-ship marker lights, other drivers may underestimate the length of the vehicle, increasing the risk of crash.

Problem, fix and repair progress →

12%repaired · 2019 Q4

Equipment

Recall 17V-758 · Nov 22, 2017 · 110,400 vehicles · 13,035 repaired

Risk. In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Thor Motor Coach.

Best & worst years

2018 vs. every other Quantum year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Quantum median. How we score

'16'17'18'19'20'21'22'23'24'25'26
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
In owners' words

What Quantum owners report

Recent visibility/wiper complaints filed with NHTSA, shortened. Personal details are removed.

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…
Complaint 11291155 · Dec 25, 2019 · 6,000 miles

Own a 2018 Quantum?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.