The 2017 Thor Motor Coach Miramar has 4 NHTSA recall campaigns affecting an estimated 112,816 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 18 complaints with NHTSA, most often about the structure. Last updated July 5, 2026.
Recall campaigns
STRUCTURE21V8450002021-10-29424 affected
Defect
Thor Motor Coach (TMC) is recalling certain 2017 Challenger, Miramar, and Outlaw motorhomes. The external compartment outer door skin may separate from the motorhome during transit.
Consequence
A door skin that separates during transit can become a road hazard, increasing the risk of a crash.
Remedy
Dealers will inspect the compartment door skin and replace the door as necessary, free of charge. Owner notification letters were mailed December 28, 2021. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000247.
VISIBILITY18V8120002018-11-161,485 affected
Defect
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.
Consequence
If the windshield roller shade unrolls while driving, it could block the driver's visibility, increasing the risk of a crash.
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.
EQUIPMENT17V7580002017-11-22110,400 affected
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,…
Consequence
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…
EQUIPMENT17V6340002017-10-09507 affected
Defect
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…
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.
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.
Complaints by component
STRUCTURE:BODY
5
POWER TRAIN
2
UNKNOWN OR OTHER
2
ENGINE
1
EQUIPMENT
1
EQUIPMENT:APPLIANCE:AIR CONDITIONER
1
EQUIPMENT:RECREATIONAL VEHICLE/TRAILER
1
LATCHES/LOCKS/LINKAGES
1
SEATS
1
STRUCTURE
1
Total complaints18
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“There is a electric privacy shade inside my rv for the windshield. My motor failed in the down position. I tried to get a replacement motor but none is available. I emailed the manufacturer of the shade and they gave me a replacement part number, this is where the safety issue comes in. The…”
“There is a electric privacy shade inside my rv for the windshield. My motor failed in the down position. I tried to get a replacement motor but none is available. I emailed the manufacturer of the shade and they gave me a replacement part number, this is where the safety issue comes in. The…”
“The adhesive bond between the panes of glass on the driver’s side frameless window has failed. Approximately 80% of the adhesive has failed allowing the front of the glass to detach. I not only fear it will now fall out while driving, but it is also constantly fogged up and hard to see my…”
“We had a cargo door skin failure while driving on i20 in dallas on a windy day, 2/1/21. We have a 2017 miramar which is the cousin of the challenger. It peeled off while driving and went airborne behind us. We were stunned as we heard the peeling off and saw the launch of the cargo door skin. It…”
“I was driving southbound on loop 303 arizona at approx 60 mph in the motorhome when vehicles passing started making hand gestures as if something was wrong with motorhome. I pulled the motorhome onto the shoulder of the roadway and upon exiting and beginning to check the outside of the motorhome I…”
“Tl* the contact owns a 2017 thor miramar 34.4. While driving 60 mph, the aluminum skin on the compartment door attached to the outdoor kitchen detached from the vehicle, followed by the actual door. The contact pulled the rv over, drove to a service station, and used duct tape to cover the parts…”
“Transmission downshifted unexpectedly causing engine to rev beyond 4k rpms resulting in driver almost losing control. The only way to stop it was to push the gas pedal down which increased the rpms even more and adding to control issue. This occurred many times on hills with or without cruise…”
“Transmission downshifted unexpectedly causing engine to rev beyond 4k rpms resulting in driver almost losing control. The only way to stop it was to push the gas pedal down which increased the rpms even more and adding to control issue. This occurred many times on hills with or without cruise…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2017 Thor Motor Coach Miramar as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
contains ads and affiliate links. Full methodology.