Identify the message first. A sound may indicate completion, a setting or a fault, and silencing it without recording the display can remove useful evidence.
Understanding this situation
The pattern and stage matter. A repeated alarm during an unfinished wash is different from a familiar end chime, and a quiet machine is not necessarily a repaired machine.
A useful next step
Consult the exact manual and follow any stop-use direction. Record the code before permitted cancellation. Do not disable safety features or repeatedly reset an appliance with leakage, burning or electrical symptoms simply to stop the sound.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.