If you are experiencing a Sensor Error alert and are not getting Dexcom G6 readings, it means the sensor is temporarily unable to measure the glucose OR your components are not communicating. Tap the alert to get more information.

Please note you will not receive glucose alarm/alerts or Dexcom G6 readings until fixed. Use your meter for treatment decisions.

Possible sources of sensor error include:

• Previous sensor session wasn’t ended and the transmitter still trying to connect to old sensor.
• Only use an alcohol wipe to prep the sensor site.
• Sensor site bleeding during insertion
• Incorrect transmitter SN entered in the display device.
• Transmitter is beyond 90-day activation period.
• Transmitter isn’t snapped in correctly. Transmitter tab isn’t seated under the plastic lip in the slot.

Wait up to 3 hours while the system fixes itself. If not corrected after 3 hours contact Technical Support (available 24/7) by submitting a request below or call 1-844-607-8398.