NHTSA vehicle safety data
2018 Thor Motor Coach Miramar Recalls & Complaints
The 2018 Thor Motor Coach Miramar has 3 NHTSA recall campaigns and 1 owner complaint on file as of November 3, 2026. Recall repairs are usually free at an authorized Thor Motor Coach dealer.
NHTSA recall and complaint data for the 2018 Thor Motor Coach Miramar. Recall data is refreshed daily from NHTSA.
2018 Thor Motor Coach Miramar owner complaints
Owners have filed 1 complaint with NHTSA about the 2018 Thor Motor Coach Miramar, describing incidents dated July 1, 2024.
Most-cited components
- Power Train 1 complaint
Newest complaints
ODI #11642156 · Filed
See attached document for complaint.
NHTSA defect investigations
NHTSA's investigations file lists the 2018 Thor Motor Coach Miramar in 1 investigation. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.
- Preliminary Evaluation PE24-023: Trailer Hitch Receiver Structure May Crack and Separate
Closed January 16, 2026
Driver Side Window Shade may Lower Without Warning
NHTSA #18V812000 · Visibility · NHTSA notice
Reported November 16, 2018 · Thor Motor Coach
Potentially affected: 1,485 vehicles
Repair completion: 53.94% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Thor Motor Coach campaign RC000165 · Owners notified January 10, 2019 · Vehicles built September 20, 2016 – August 17, 2018 (per NHTSA)
Defect description
Thor Motor Coach (TMC) is recalling certain 2017-2019 Thor Challenger, Miramar, and Outlaw motorhomes. The motorized windshield roller shade at the driver's seating position may unroll without warning while driving.
Safety consequence
If the windshield roller shade unrolls while driving, it could block the driver's visibility, increasing the risk of a crash.
Manufacturer remedy
TMC will notify owners, and dealers will install a fastener to ensure the motor will not allow the shade to roll down during while driving. The recall began January 10, 2019. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000165.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Fire Extinguisher May Be Clogged or Inoperable
NHTSA #17V758000 · Equipment · NHTSA notice
Reported November 22, 2017 · Thor Motor Coach
Potentially affected: 110,400 vehicles
Repair completion: 11.81% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Owners notified January 15, 2018
Defect description
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
Safety consequence
In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
Manufacturer 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.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Incorrect Water Capacity on Label/FMVSS 120
NHTSA #17V634000 · Equipment — Other — Labels · NHTSA notice
Reported October 9, 2017 · Thor Motor Coach
Potentially affected: 507 vehicles
Repair completion: 44.58% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Thor Motor Coach campaign RC000147 · Owners notified November 15, 2017 · Vehicles built July 22, 2016 – August 16, 2017 (per NHTSA)
Defect description
Thor Motor Coach (TMC) is recalling certain 2017-2018 Challenger, Axis, Chateau, Four Winds, Hurricane, Miramar, Palazzo, Tuscany, Vegas, Venetian, and Windsport motorhomes. The cargo carrying capacity (CCC) label on these vehicles may indicate an incorrect water capacity for the water heater/fresh water tank. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 120, "Tires and Rims for Motor vehicles over 10,000lbs."
Safety consequence
If the water capacity information is incorrect and it causes the vehicle to be over loaded, there would be an increased risk of a crash.
Manufacturer remedy
TMC will notify owners and send them corrected labels, free of charge. The recall began on November 15, 2017. Owners may contact TMC customer service at 1-877-500-1020. TMC's number for this recall is RC000147.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Other Thor Motor Coach Miramar model years
Check your 2018 Thor Motor Coach Miramar VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Thor Motor Coach Miramar at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
Check a Thor Motor Coach VIN