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2023 Thor Motor Coach QuantumProblems, recalls & complaints

NHTSA has logged 1 owner complaint about the 2023 Thor Motor Coach Quantum, most often about the unknown or other. It is covered by 2 safety recalls, and for recall 25V-171 the manufacturer reports only 55% of affected cars repaired.

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CarFlaw IndexNot enough dataHigher is better (0–100)
Safety recalls2Lowest repair rate 55%Owner complaints10 with a crash, fire or injuryTop problem1Unknown or other

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through June 30, 2026. Updated daily.

Complaints by system

Where the 2023 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

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

2 recalls

2023 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.

55%repaired · 2026 Q3

Equipment: recreational vehicle/trailer

Recall 25V-171 · Mar 20, 2025 · 4,251 vehicles · 2,341 repaired

Risk. A slide-Out room that extends unexpectedly increases the risk of a crash.

Problem, fix and repair progress →

85%repaired · 2025 Q2

Equipment: recreational vehicle/trailer

Recall 22V-611 · Aug 10, 2022 · 262 vehicles · 224 repaired

Risk. An awning that drops or extends beyond normal operation 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

2023 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 unknown or other complaints filed with NHTSA, shortened. Personal details are removed.

I bought this RV as a new 2023 Thor Quantum MB24. After a recall performed by Mercedez of Pleasanton, California ( after the VIN no. was punched on their computer ), it shows as a 2021 Model year. How would I know if I was sold a pre - owned Motor Vehicle or a new one ? It has 2000+ miles in…
Complaint 11747479 · Jun 30, 2026

Own a 2023 Quantum?

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