What happens after I update my Dexcom CGM app?

After the update, your high and low alert settings revert back to the following preset values:
Low – 3.9 mmol/L Alert for "Low (Preset)"
High – 14.0 mmol/L Alert for "High (Preset)"
If you would like to customize the alerts, you need to go to "Settings" in the Dexcom CGM app -> "Alerts" and reset the alert values to your desired thresholds.

MAT‑11165

This device is a registered medical device under Act 737. MDA Registration No.: GC4609424-190288. Advertisement Approval MDAMD 080/2026
Privacy PolicyTerms of UseSafety InformationCookie PolicyTrust CenterCompatibilityDownloads and Guides

MAT-12312

MAT‑11165

© 2026 Dexcom, Inc. All rights reserved.

MY flag

MY

Change region