Why can’t I hear my Dexcom ONE+ alerts?

Check the Safety Information Check Settings section of the Safety Information chapter in the User Guide as well as the following:

1. Phone is on: Verify that the app, Bluetooth, sound, and notifications are on, and the volume is loud enough for you to hear it. App is on when it's open and/or running in the background. Swiping up on the app in preview closes it.

2. Phone settings:

Fix any phone setting issues the app alerts you about.
These phone features stop your alerts and app from working:
Apple features include: Screen Time and Low Power Mode
Android features include: Focus Mode, App Pause, and Battery Saver Mode
For more information, go to Profile > Dexcom ONE+ iPhone Safety or Profile > Dexcom ONE+ Android Safety.

3. Phone operating system: Automatic updates of the app or your device operating system can change settings or shut down the app. Update manually, and verify correct device settings afterward. Before upgrading your smart device or its operating system, check dexcom.com/compatibility.

4. Alert settings: Make sure you use sounds that you can hear for each alert. For more information, go to the Alerts chapter in the user Guide.

5. Phone speaker: See your smart device product instructions to test the speaker.

6. Bluetooth speaker, earphones, etc.: Verify you're getting your alerts where you want them.

If you cannot hear the alerts on your Dexcom ONE+ receiver, please check the following:

1. Receiver is on: Verify that the receiver is on.

2. Alert sounds:

Make sure you aren't using Vibrate Only. For more information, go to the Alerts chapter.
Change your alert sounds to one you can hear easily. For more information, go to the Alerts chapter.

3. Test speakers: Test your receiver speakers regularly by plugging in the receiver to charge and following the speaker test instructions on the screen, or go to Menu > Information > Receiver > Speaker Test.

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