Troubleshooting

Troubleshooting

How can I avoid skin irritation caused by the CGM sensor adhesive?

Use these considerations to help mitigate Dexcom CGM skin irritation or adhesive allergy for those with sensitive skin.
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Why is my trend arrow missing?

When there is no arrow, it means more glucose readings are needed to establish your trend.

What do I do when I get the Sensor Failed message?

This means that your sensor is no longer working. Remove the failed sensor and replace with a new one.

What do the Question Marks (???) mean?

The question marks mean that the transmitter does not understand the sensor readings for the moment. You will want to wait a minimum of 3 hours for them to clear. If they do not clear within that time frame, please contact Dexcom Technical Support at 1-844-82-1810 (Option 3).

Need Additional Help?

Dexcom users getting technical support from dexcom representatives

Technical Support

Dexcom CGM product troubleshooting and Clarity software support
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Dexcom users getting onboarding support from Dexcom Care team

Dexcom Care

Training & support for new Dexcom users

Our experts are here to help.

LBL-1001709 Rev001

LBL019203 Rev001

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