Text directly from https://www.dexcom-notification.com/cgm
Important Customer Notification - Please Read
Dear Valued Dexcom Customer,
Dexcom monitors product complaints through our quality program where we have noticed an increase in complaints for audible alarms and alerts associated with Dexcom Receivers (Dexcom G4 PLATINUM, Dexcom G4 PLATINUM Pediatric, Dexcom G4 PLATINUM Professional, Dexcom G4 PLATINUM w/Share, Dexcom G4 PLATINUM w/Share Pediatric and Dexcom G5).
As such, we are notifying all Dexcom customers that you may not receive an intended audible alarm or alert if you are relying on hearing the alarm or alert. As a result, you may not detect a severe hypoglycemic (low glucose) or hyperglycemic (high glucose) event.
Dexcom is working on implementation of an improved speaker for our receivers.
The Food and Drug Administration (FDA) is aware of this notification. A copy of this notification is available at http://www.dexcom.com/notification.
Recommended Customer Action:
Periodically test the alarms and alerts on your receiver to make sure that your alarms and alerts are functioning properly (especially if the receiver gets wet or is dropped).
Receiver part numbers and instructions for testing the alarms and alerts are found on the back of this notification, as well as in your User’s Guide.
Should you find that your alarms and alerts are not functioning properly, or if you have any questions regarding this notification, please call our dedicated hotline toll free at (844) 607-8398 or dial (858) 291-1700.
On behalf of Dexcom, we deeply apologize for your inconvenience.
Dexcom Chief Executive Officer and President