2017 Thor Motor Coach Miramar Body and structure Problems
- Complaints
- 6about this part
- Share
- 75%of 8 total for the year
- Median mileage
- 4,350miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the body and structure of the 2017 Thor Motor Coach Miramar, 75% of the 8 complaints for this model year. Where a mileage was given, the median is 4,350 miles. 1 recall campaign on record is filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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 found on the driver side one of cargo doors outer skin had separated from the cargo door back to the hatch handle which had stopped the door skin from completely coming off. The cargo door was the first door on driver side front that is for the coach battery compartment. …”
NHTSA complaint #11329249, filed 2020-06, 7,200 miles“Driver seat unstable while driving. Wipers do not work properly. Propane heater severely over heats under cabinet that is right next to oven/stove causing a fire hazard. Hood of vehicle and side lockers open unexpectedly and locking mechanisms do not work properly both while stationary and in motion. The consumer stated the flooring, leveling jacks,doors and walls, slides, ladder,awning, molding, drop down bed,cup holders, storage lockers, cabinet, AC unit, wipers entry door and sidewalls were also damaged.”
NHTSA complaint #11073492, filed 2018-02, 1,400 miles“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 mirror. This is a large piece of glass. Thor (the manufacture) has done nothing more than inform me that the warranty period for my bus has ended.”
NHTSA complaint #11504212, filed 2023-01“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 broke the lock from the door frame as well. Miraculously, it landed on the side of the highway while motorists were swerving to miss the projectile. We stopped and checked all the doors including the outside kitchen, all of which are in the debonding process. …”
NHTSA complaint #11436500, filed 2021-10“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 of the vehicle that detached. The manufacturer was notified of the failure and informed the contact that the vehicle's warranty was expired. The vehicle was not diagnosed or repaired. The dealer was not contacted. The failure mileage was unknown.”
NHTSA complaint #11240887, filed 2019-07, 15,202 milesRelated recalls
- 21V845000Oct 29, 2021Thor Motor Coach (TMC) is recalling certain 2017 Challenger, Miramar, and Outlaw motorhomes. The external compartment outer door skin may separate from the…Covers: Thor Motor Coach Miramar 2017, Challenger 2017, Outlaw 2017
Body and structure: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2017 | 6 | 75% |
| 2015 | 1 | 20% |
Other parts of the 2017 Thor Motor Coach Miramar
2 complaintsOther or unknown
2 complaintsTransmission and drivetrain
2 complaintsEngine
1 complaintsLatches, locks and linkages
1 complaintsSeats
1 complaintsVehicle speed control
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2017 Thor Motor Coach Miramar
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology