AI Damage2021 Thor Motor Coach Chateau: common problems
Owners of the 2021 Thor Motor Coach Chateau filed 2 complaints with NHTSA, most often about engine. The maker issued 2 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 2
- Technical service bulletins (TSB)
- 2
What fails most often
- Engine: 1 complaints (50% of all).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 1 | 0 | 0 |
| Engine and cooling | 0 | 0 | 1 |
| Service brakes | 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.
The contact received notification of NHTSA Campaign Number: 20V795000 (ENGINE) on the 2021 Thor Motor Coach; however, when the dealer was contacted to schedule an appointment for the recall repair, the contact was informed that the VIN was not under recall. The manufacturer was not made aware of the issue.
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 19,879 of 36,656 model years in the NHTSA data (among the 46% least complained about).
On average one model year of the Chateau has 2 complaints (10 years in the data). This year has 2, above average.
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- MBAG has determined that on certain model year 2019-2020 Sprinter vehicles, the retaining washer on the…
MBAG has determined that on certain model year 2019-2020 Sprinter vehicles, the retaining washer on the bolt that connects the brake pedal to its bearing block could come loose. If the retaining washer were to come…
- On your vehicle, it may be possible that the engine cover insulation does not fully extend to the…
On your vehicle, it may be possible that the engine cover insulation does not fully extend to the perimeter of the factory engine cover. In addition, vehicles built on a Ford chassis may have higher engine compartment…
Other years of this model
Questions and answers
What are the most common problems with the 2021 Thor Motor Coach Chateau?
Owner complaints to NHTSA most often mention: engine. Total complaints: 2.
How many service bulletins (TSB) were issued for the 2021 Thor Motor Coach Chateau?
NHTSA lists 2 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 2021 Thor Motor Coach Chateau 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 2021 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.