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Thor Motor Coach: common problems by model

65 Thor Motor Coach models with NHTSA data and repair videos. Pick a model, then a model year.

Models

Components owners complain about

ComponentOwner complaintsinvolving a crashTechnical service bulletins (TSB)
Electrical system00129
Equipment00116
Steering0063
Service brakes0048
Engine and cooling0046
Structure0040
Backover prevention0030
Visibility0017
Powertrain0015
Fuel system0014
Seat belts0014
Other0064

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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.