AI Damage2018 Thor Motor Coach Miramar: common problems
Owners of the 2018 Thor Motor Coach Miramar filed 2 complaints with NHTSA, most often about powertrain and visibility. The maker issued 1 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 2
- Technical service bulletins (TSB)
- 1
What fails most often
- 1 Powertrain 50% of all complaints
- 2 Visibility 50% of all complaints
- Powertrain: 1 complaints (50% of all).
- Visibility: 1 complaints (50% of all).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Powertrain | 1 | 0 | 0 |
| Visibility | 1 | 0 | 0 |
| Equipment | 0 | 0 | 1 |
| Other | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Every time I drive the rv and a change in temperature and humidity occurs the windshield and both side windows fog very bad, they will not defrost and you cannot see while driving down the road, you cannot see through the mirrors on either side because of this, it does not matter what road you are on.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 19,885 of 36,659 model years in the NHTSA data (among the 46% least complained about).
On average one model year of the Miramar has 3 complaints (10 years in the data). This year has 2, below average.
What to check before buying
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Visibility. Wipers, mirrors, defrosters, cracked glass.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This letter stated that there was one (1) Service Notification issued for the month of October, 2017
Other years of this model
Questions and answers
What are the most common problems with the 2018 Thor Motor Coach Miramar?
Owner complaints to NHTSA most often mention: powertrain, visibility. Total complaints: 2. The most frequent symptoms in complaint texts: windows, sunroof (50%).
How many service bulletins (TSB) were issued for the 2018 Thor Motor Coach Miramar?
NHTSA lists 1 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2018 Thor Motor Coach Miramar from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2018 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.