FAQ: I got a Critical Low Alarm from Libre 3. What should I do?

FAQ:

I got a Critical Low Alarm from Libre 3. What should I do?

Answer:

Libre 3 has a feature to warn you when your glucose falls below 55 mg/dL. This alarm goes off even if your phone is set to Silent, and there’s no way to disable it from the Freestyle Libre 3 app. While the majority of users don’t experience this, some people experience nighttime and/or pressure-induced lows which can cause the alarm to sound.

To prevent your alarms from going off in the middle of the night, you will need to turn off alarms in your phone's notification settings.

Please note: By turning off Critical Alerts and Time Sensitive Notifications for the Freestyle Libre 3 app, you won't be able to continue syncing your data between the Freestyle Libre 3 app and the Levels app. Data will also not appear in the Libre 3 app while critical alerts are disabled. 

Your Freestyle Libre 3 has 14 days of onboard storage, so once you turn back on the alarms in the morning, your data should automatically sync in the Levels app. Syncing the data usually takes a couple of minutes, so we recommend doing a hard relaunch of the Libre 3 app to expedite the process. This means force closing and relaunching the Libre 3 app. 

Note that it is only appropriate to halt these alarms if you are using the CGM for general-wellness purposes through the Levels program. Anyone using the Freestyle Libre 3 for any medical purpose must not attempt to disable the alarms.

1. Turn off alarms in your phone’s Notification Settings.

For iOS: 

Navigate to iPhone Settings >> In the top search bar, type Freestyle Libre 3 and select >> Select Notifications >>Toggle off both Critical Alerts and Time Sensitive Notifications