Why did my Dexcom G7 sensor fail?
If at any time during a sensor session your Dexcom G7 system detects that the sensor can no longer determine your glucose reading, you may receive one or both of the following alerts.
Brief Sensor Issue alert
Sensor Failed alert
Tips to help prevent future sensor failures:
- Make sure you insert in an approved wear location. Avoid areas:
- With loose skin or without enough fat to avoid muscles and bones.
- That get bumped, pushed, or you lie on while sleeping.
- Within 3 inches of infusion or injection site.
- Near waistband or with irritations, scarring, tattoos, or lots of hair. If needed, trim the site area with electric clippers.
- Was the previous sensor session ended? Tips on Ending Sensor Session and starting a new one.
- Make sure you clean your sensor site with soap and an alcohol wipe and let dry completely before you insert.
- Make sure you use the Dexcom overlay and keep the sensor securely adhered to your skin, so the sensor wire doesn’t come out. Tips on sensor adhesion.
If you have any questions regarding sensor insertion, placement, or otherwise, please refer to the Dexcom G7 product instructions for additional information.
If you have sensor failure at any time during your sensor session, please contact technical support.
Global Technical Support - Product troubleshooting or replacement inquiries
1-844-607-8398
Available 24 hours a day; 7 days a week
*For a list of compatible devices, visit www.dexcom.com/compatibility
MAT-1047
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