Dexcom G7 Troubleshooting

Sensor and Adhesion Issues

What can I do to keep the adhesive patch from peeling off my body?

Follow the insertion instructions carefully and be sure to use the sensor overpatch included with your G7 sensor. Here are some tips that may help you keep your sensor on for the entire sensor session.

What happens if my sensor insertion causes bleeding?

Learn how to properly insert a Dexcom GGM sensor to avoid bleeding. Follow these tips for correct technique and contact support if needed.

I am experiencing skin irritation with Dexcom G7, what can I do?

The Dexcom G7 has a new sensor patch that contains medical-grade, pressure-sensitive, acrylic-based adhesive, like the previous G6 patch. The only difference in the adhesive is a slight change in the formulation.

How to get a Dexcom G7 sensor replacement for a failed sensor or product issue

Contact Technical Support to receive a replacement voucher which you can use at any pharmacy in Canada to get a Dexcom G7 sensor replacement.

Pairing and Connectivity

If I am replacing my compatible smart device, what will I need to do?

The Dexcom G7 sensor can only connect with one smart device at a time...

How should I respond to the Signal Loss alert?

Get tips to prevent signal loss for your Dexcom G7 app or receiver.

What is the iOS G7 app 2.7 Safety Notice about?

Learn about the recent G7 iOS app safety notice and how to update to the latest app version to prevent issues.

My system seems to be experiencing an outage. What do I do?

Please visit status.dexcom.com for real-time updates on the status of Dexcom products.

Calibration and Accuracy

What do I do if my CGM values seem inaccurate?

Refer to the Dexcom G7 User Guide for information on Dexcom G7 accuracy. For further support needed, you can also reach out to Dexcom 24 Hour Technical Support or the Dexcom CARE team for immediate assistance.

What does Calibration Not Used mean?

If you have entered a calibration, you may see Calibration Not Used in your History tab. This means that your Dexcom G7 sensor was not able to use the calibration you entered, so your glucose readings may not be aligned to your blood glucose (BG) meter.

What’s the difference between my BG meter reading and CGM reading?

Have you ever wondered why your blood glucose (BG) meter and Dexcom G7 reading are not the exact same number. One explanation is that a BG meter measures glucose from the blood while Dexcom G7 measures interstitial fluid, so those numbers may be different.