What do I do if I receive the Sensor Failed alert?

This issue may happen anytime during a sensor session. If you get this alert, go to its Help screen for more information.
You won't get sensor readings or alerts until you start a new sensor.
  1. Remove sensor now
    Tip: Peel off patch from edge.
  2. Insert and pair new sensor
  3. Review Choose Sensor Site by Age in Inserting Sensor.

MAT‑11165

This device is a registered medical device under Act 737. MDA Registration No.: GC4609424-190288. Advertisement Approval MDAMD 080/2026
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Dexcom, Dexcom ONE+ and any related logos and design marks are either registered trademarks or trademarks of Dexcom, Inc. in the United States and/or other countries.
Always read the label and use only as directed. Read the warnings available on dexcom.com/downloadsandguides before purchasing. Consult your healthcare professional to see if this product is right for you. This product is a continuous glucose monitoring system indicated for the management of (type 1, type 2, gestational) diabetes in people age 2 years and older where self-monitoring of blood glucose (SMBG) is indicated.
This device is a registered medical device under Act 737. MDA Registration No : GC4609424-190288

MAT-12312

• MAT‑11165

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