Setting Up Your G6 CGM System
Inserting and Starting Your Sensor and Transmitter
How do I start my Dexcom G6 sensor?
When you start a new Dexcom sensor, you must enter a code into your display device to use Dexcom G6 without fingerstick calibrations. Please make sure to follow each onscreen prompt step by step.
How do I insert my Dexcom sensor?
Dexcom designed the Dexcom G6 CGM System sensor auto-applicator for easier, more consistent sensor insertions.
Where can I insert my Dexcom G6 sensor?
Dexcom G6 sensors may be inserted on the abdomen (indicated for patients age 2 years and older) or the upper buttocks (ages 2-17 years). Sensor placement is important and you will want to change your insertion site with each sensor.
Is it painful to insert a Dexcom G6 sensor?
According to a survey of Dexcom G6 users, 84% reported that the initial sensor insertion was painless and 100% reported that the applicator was easy to use.
Using Your Sensor and Transmitter
Does the Dexcom G6 Continuous Glucose Monitoring (CGM) System require calibrations?
Dexcom G6 Continuous Glucose Monitor (CGM) requires no fingersticks or calibrations – just enter the unique G6 sensor code on the label during setup. Learn how to calibrate if needed.
Setting up Sharing and Dexcom Clarity
How do I log into Dexcom Clarity?
You must have a Dexcom account to use Dexcom Clarity. You must use the same Dexcom account for all your Dexcom devices.
Is Dexcom Clarity compatible with Dexcom G6?
Yes, Dexcom G6 is compatible with the Dexcom Clarity software. Patients will not need to register again, nor download a new Dexcom Clarity app, if they have an existing account.
How do I get to Dexcom Clarity?
Go to clarity.dexcom.com from an internet browser with internet connection.
How do I share my Dexcom G6 glucose data with followers?
Dexcom Share is a feature within the Dexcom G6 app that allows you to share your glucose data with up to 10 designated persons (followers). Learn how to enable sharing.
Using Your Receiver
How do I know which Dexcom receiver I have?
The two Dexcom receivers have different hardware, which makes it easy to tell them apart.
Do I need to use my Dexcom receiver for my Dexcom CGM to work?
You have the flexibility to use only the Dexcom G6 app, only the Dexcom receiver, or both at the same time, depending on your diabetes management preferences.
Changing Your Sensor and Transmitter
What is a sensor code and why do I need one?
A sensor code allows you to use the Dexcom G6 CGM System without the need for fingersticks or calibrations.* When you start a new sensor, you must enter a code into your display device.
Common Dexcom CGM Questions
Who should I contact with help getting started with Dexcom CGM?
If you need assistance with starting your Dexcom CGM system, the Dexcom CARE team of diabetes coaches can be contacted at 1-877-339-2664.
Understanding Data and Trends
How does the Urgent Low Soon alert work?
The Urgent Low Soon alert can warn users in advance (within 20 minutes) of a severe hypoglycemic event (55 mg/dL), which helps give them time to take appropriate action before an event occurs.
Blood Sugar Levels
What is the difference between the Urgent Low Soon alert and the Fall Rate?
The Urgent Low Soon alert notifies you when your Dexcom G6 reading is predicted to reach 55 mg/dL within 20 minutes. The Fall Rate notifies you when your glucose level is falling 2 or 3 mg/dL each minute.
System Overview
What components are required with the Dexcom G6 CGM?
The Dexcom G6 CGM System requires Dexcom G6 sensors, Dexcom G6 transmitters, and a compatible touchscreen receiver or smart device (subject to smart device compatibility requirements).
I use Android™ 9, why can’t I update my Dexcom G6 App?
As of January 2025 Dexcom no longer supports Dexcom G6 app updates for devices that run Android 9 or below.
Smartwatch Compatibility
Why can’t I find the Dexcom G6 Android watch app?
A Google Play Store update changed the way Android watch apps are shared on the app store. The Dexcom G6 Android watch app isn’t compatible with this Google Play Store version yet, so the watch app isn’t visible in the app store.
Can I view my Dexcom G6 CGM data on an Apple Watch?
Yes, you can get Dexcom G6 CGM glucose monitoring data and readings on your Apple Watch if your watch is connected to a compatible smartphone. See how to set up.
How do I set up the G6 Android watch app face?
Follow these instructions in order to get the Dexcom G6 Android app watch face
Smartphone Compatibility
Can I view my Dexcom G6 CGM data on an Android Watch?
If your Android Watch is connected to a compatible smartphone, the Dexcom CGM app for Android will work with Android Wear watches that support custom watch faces and meet the app’s minimum OS compatibility requirement.
Why do dashes show up on my Dexcom G6 Apple Watch complication?
Apple stopped supporting the Modular Large watch face complication on watchOS 9. If you use the Modular Large Dexcom watch face complication, it will permanently show dashes
Can I share my glucose data with Google Health Connect?
Google Health Connect is Google’s health and fitness tracking app available for use with Android devices. You can enable the Dexcom G6 app to share glucose data with Health Connect, which displays glucose data with a three-hour delay.
Is the Dexcom G6 app compatible with Siri?
This feature is only compatible with iOS devices using iOS 12 and above and supported Apple Watches and watchOS.
Setting Up Your Smartphone or Receiver
How do I set up the Dexcom G6 app with my phone?
With the Dexcom G6 app version 1.4 and later, you can ask Siri to recite your Dexcom glucose readings out loud and display your graph directly on the lock screen.
If I am replacing my smart device, what will I need to do?
If you are replacing your smart device and use the Dexcom G6, please review the instructions and complete them while in a current sensor session or at the time of a sensor change.
What are the recommended phone settings for the Dexcom G6 app?
Choose the phone you’re using to find out what the recommended phone settings are when using Dexcom G6 app.
What is the Android Do Not Disturb Permission?
Support for the Android Do Not Disturb Permission was introduced with the release of G6 Android app version 1.8.0. Safety is Dexcom’s top priority, so this new app permission is required to ensure you always get the Urgent Low alarm and important Dexcom alerts.
Sensor Adhesion Issues
What happens if my sensor insertion causes bleeding?
Proper insertion technique is important to prevent bleeding. When pressing the button, the CGM sensor should be resting superficially on the surface of your skin.
How can I keep my Dexcom sensor adhered for the full sensor session?
Are you a swimmer, runner or have trouble with your sensor staying on? These Dexcom adhesives tips can help you keep your Dexcom CGM sensor on for the full sensor session.
Sensor Failure Issues
What can I do if my Dexcom G6 sensor fails during the 2-hour warmup period?
You should first ensure that your Dexcom G6 sensor was correctly inserted. Then, folow these steps.
Calibration and Accuracy Issues
Is my Dexcom sensor accurate?
The test your doctor does is considered a more accurate glucose number than any products you use at home. Both BGMs and Dexcom G6 are compared to that doctor’s test to measure accuracy in clinical studies.
Where and How to Order
How to get started on the Dexcom G6 Continuous Glucose Monitoring System?
The first step to get started on Dexcom G6 is to visit our website
Pairing and Connectivity Issues
I lost my Dexcom sensor code. What do I do?
Without your sensor code, you’ll need to calibrate twice after your 2-hour sensor warmup is complete, a third time 12 hours later, a fourth time 12 hours after that, and then once every 24 hours.
What happens if I have trouble starting my Dexcom G6 sensor session?
Please ensure that your Dexcom G6 transmitter is paired correctly and that your previous sensor session has ended.
Managing Your Online Account
I use Dexcom G6. How do I reset my password?
To reset your Dexcom account password, follow these easy steps.
Using the Dexcom CGM App
Why does Dexcom require a user under 18 years old to use a dependent?
Dexcom requires anyone creating an individual account to accept our Terms of Use and Privacy Policy when signing up, which can only be accepted by customers who are 18 years and older.