AI Damage2014 Thor Motor Coach ACE: common problems
Owners of the 2014 Thor Motor Coach ACE filed 3 complaints with NHTSA, most often about latches, locks, linkages and service brakes. Details by component below, with sources.
Key figures
- Owner complaints
- 3
What fails most often
- 1 Latches, locks, linkages 33% of all complaints
- 2 Service brakes 33% of all complaints
- 3 Structure 33% of all complaints
- 4 Visibility 33% of all complaints
- Latches, locks, linkages: 1 complaints (33% of all).
- Service brakes: 1 complaints (33% of all).
- Structure: 1 complaints (33% of all).
- Visibility: 1 complaints (33% of all).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Latches, locks, linkages | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Structure | 1 | 0 | 0 |
| Visibility | 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.
Hydrolic booster is leaking inside coach and dripping under brake pedal. I notice it more when engine is cold.
While parked in garage, couldnt get in because door locked by itself. Had to break into rv and take door handle off as keys would not open it or manual operation would not open it. Refused to purchase another replacement for fear of this happening again. Very poor design.
Tl* the contact owns a 2014 thor ace. While driving various speeds in the rain, the windshield wipers failed without warning. The vehicle was taken to the dealer where it was diagnosed that the relay box filled up with water.
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 17,150 of 36,656 model years in the NHTSA data (top 47% most complained about).
On average one model year of the ACE has 3 complaints (13 years in the data). This year has 3, about average.
What to check before buying
- Latches, locks, linkages. Door, hood and tailgate latches, especially near the impact.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Visibility. Wipers, mirrors, defrosters, cracked glass.
Other years of this model
Questions and answers
What are the most common problems with the 2014 Thor Motor Coach ACE?
Owner complaints to NHTSA most often mention: latches, locks, linkages, service brakes, structure. Total complaints: 3. The most frequent symptoms in complaint texts: door locks, latches, handles (33%).
How many service bulletins (TSB) were issued for the 2014 Thor Motor Coach ACE?
NHTSA lists 0 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 2014 Thor Motor Coach ACE 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 2014 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 2026-11-05.