Belts, detachable trims, straps and protective inserts can have different restrictions from the main garment. Leaving them attached can make an otherwise suitable item unsuitable for continuous treatment.
Understanding this situation
Check the complete care instructions and remove components only as directed. A small accessory can still create noise, become trapped or be damaged by heat, so its size is not a reliable measure of risk.
A useful next step
Prepare the item before selecting wash-and-dry. If an accessory is missing afterwards and a new machine symptom appears, stop further use and report it. Do not assume that a successful wash confirms safe drying for every attachment.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.