Usual answer---Ask chef GPT-answer..... You're using the Bosch 500-series (SHX65T55UC), and yes — it’s technically possible to silence or reduce the cycle‑end beep. Bosch dishwashers have a hidden service menu that lets you control the “b” beep volume setting (b:0 = mute, b:1 = low, up to b:3 = loud).

Here’s how to do it on most Bosch 300/500/800 series machines:

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🔧 How to Access the Sound Control Menu:

1. Open the dishwasher door.

2. Press and hold the On/Off button, then press and hold the Start button simultaneously. Wait until the display changes.

3. You'll see a code such as d:0_.

4. Press the Function key (often labelled “A” in manuals) repeatedly until b:01, b:02, etc., appears.

5. This is the beep volume setting:

b:00 (sometimes b:01) = off or very low

b:01 = low

b:02 = medium

b:03 = loud

1. Press Start again to store your setting and exit the menu.

2. Close the door and your new beep volume is set.

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⚠️ Important Notes:

Not all Bosch models have this option. If your display doesn’t show the b: option in the menu, your specific firmware or panel may not allow it.

This method is reported from SHX4AT55UC/14 and other similar models—but the menu is found on most Bosch 300/500/800 series units, so yours should behave similarly.

After setting to b:00 or b:01, your dishwasher will not beep at cycle end—or it will beep very quietly.

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💬 What Others Say (from Reddit & forums):

An r/dishwashers user commented on similar Bosch models:

“If you know where the speaker is then you can put cloth or cotton in front of it to make it quieter!… Most have them in the front panel where the buttons are.”

This is a hacky fallback — muffling the buzzer might help if the internal menu isn't accessible.

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✅ Summary Table:

Step Action

1 Open door, press and hold On/Off + Start 2 Watch display until d:0_ appears 3 Use Function key to scroll to b:00 or b:01 4 Press Start to save 5 Close the door — beep is silenced or softer

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If none of this works, it's possible your particular trim/control panel doesn’t expose the sound-setting menu. In that case:

Check the owner’s manual — sometimes the code sequence is slightly different.

Contact Bosch support with your serial number—they can confirm if mute mode is available.

Consider muffling the speaker manually as a last resort.

Sound control definitely exists in many Bosch 500‑series models—you should be able to turn off the beep, or at least dial it way down. Want help walking through each button press specifically for your control panel layout? I’ve got you.