Your toothbrush comes without this feature activated. You can toggle the feature on and off within the Sonicare app.
Here's how:
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Open the Sonicare app.
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On the pre-brushing screen, tap the ^ button to expand the toothbrush settings.
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In the Scrubbing Feedback section, tap on the blue toggle slider to switch the feature on or off. The feature is on if the white circle is over to the right.
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