How do I turn off the audible tones on my dishwasher?

Press and hold the Hi Temp Wash button for 3 seconds to turn the audible tones on or off. Note that only the tones confirming button presses can be turned on or off; important audible tones such as those indicating a cycle has been interrupted cannot be deactivated. This feature is not available on all models. (Pages 6, 11)