The 2017 Thor Motor Coach Challenger has 5 NHTSA recall campaigns affecting an estimated 112,904 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 5 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.
EQUIPMENT17V3620002017-06-0288 affected
Defect
Thor Motor Coach (Thor) is recalling certain 2017 Challenger 37YT motorhomes. The exhaust pipe from the onboard gasoline generator may be mislocated or missing completely on the subject vehicles.
Consequence
Without a correctly installed generator exhaust pipe, there may be a buildup of carbon monoxide within the interior of the vehicle, increasing the risk of personal injury or death.
Remedy
TMC will notify owners, and dealers will inspect the motorhomes for proper generator exhaust installation and routing, replacing or reinstalling the exhaust, as necessary, free of charge. The recall began on August 3, 2017. Owner's may contact TMC customer service at 1-877-500-1020. TMC's number for this recall is…
Complaints by component
STRUCTURE:BODY
4
STRUCTURE
1
Total complaints5
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“My 2017 thor challenger was part of nhtsa recall 21v-845. I made repairs to my coach in 2017 and 2018 totaling $4600. I have sent thor all pictures and receipts from those repairs. I started the process in march 2022. Last week they informed me it is not a thor recall, and I would have to deal…”
“The contact owns a 2017 thor challenger motorhome. The contact stated that while driving at 65 mph, an abnormally loud banging sound was heard and another vehicle honked the contact, alerting him to look in the rearview mirror. The contact noticed styrofoam flying from the motorhome and the…”
“The plunger on the trimark door handle/lock mechanism broke internally, locking us outside of our motor home. The motor home was parked.”
“On 04/16/2018at approximately 1:15 while traveling west on I-40 midway between mile marker238and236i heard a loud noise from the left side of the coach. I immediately looked in the left hand mirror, and saw what I thought was the battery compartment door, open, flapping in the breeze. I was…”
“We have owned our vehicle for 14 months with under 7000 miles driven and used approximately 12 times for trips. While we were preparing to leave, the trimark entry door latch broke leaving 3 people trapped inside and me outside. I had to climb through a window using a ladder with tools to…”
Defect investigations
InvestigationPE20021 Opened 2020-11-23 · closed 2024-12-13
Trimark 060-1650 Door Latch Failures
On November 23, 2020, the Office of Defects Investigation (ODI) opened PE20021 to investigate allegations of inoperative Trimark THP 060-1650 door lock/latches originally equipped on model years (MY) 2015-2017 Class A and Class C motorhomes.ODI received forty-six Vehicle Owner’s Questionnaires (VOQs) describing…
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 Challenger as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
contains ads and affiliate links. Full methodology.