AI Damage2021 Thor Motor Coach Sanctuary: common problems
The maker issued 7 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 7
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Backover prevention | 0 | 0 | 2 |
| Seats | 0 | 0 | 2 |
| Steering | 0 | 0 | 2 |
| Electrical system | 0 | 0 | 1 |
| Structure | 0 | 0 | 1 |
Comparison
What to check before buying
- Backover prevention. Rear camera and parking sensors after a rear impact.
- Seats. Occupant sensor, power adjustment, seat mounts.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- On certain Mercedes-Benz Sprinter vans, the MBUX multimedia system software might not meet specifications
Under very specific conditions, the MBUX multimedia system might not start and the display might remain black, or could reboot unintentionally after 50 seconds of initial startup. Accordingly, the rearview camera image…
- MBAG has determined that on certain Mercedes-Benz Sprinter vehicles that are equipped with electrically…
MBAG has determined that on certain Mercedes-Benz Sprinter vehicles that are equipped with electrically adjustable front swivel-seats, the seat wiring harness may be improperly routed or mounted within the swivel-seat…
- On certain Model Year 2020 Sprinter vehicles, the screws for the front door hinges may not have been…
On certain Model Year 2020 Sprinter vehicles, the screws for the front door hinges may not have been tightened according to specification. If the door hinge screws are not tightened with the specified amount of torque…
- Model/Model Year to Add
2017 Chateau 2017-2018 Chateau Citation 2017 Four Winds 2017-2019 Gemini 2017-2019 Quantum 2017-2019 Four Winds Siesta 2017-2019 Synergy 2018 Compass 2018 Freedom Elite 2021 Sanctuary 2021Tranquility PLEASE NOTE- Due…
- It has been determined that on certain Mercedes-Benz Sprinter vehicles, the hydraulic power steering…
It has been determined that on certain Mercedes-Benz Sprinter vehicles, the hydraulic power steering return line hoses might detach at their connection points under certain operating conditions, which could cause…
Other years of this model
Questions and answers
What are the most common problems with the 2021 Thor Motor Coach Sanctuary?
There are no owner complaints in the NHTSA data for this year; the data comes from 7 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 Thor Motor Coach Sanctuary?
NHTSA lists 7 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 Sanctuary 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 2026-11-04.