Can I start a CGM session immediately after my pump is out of storage mode?

No. Please wait at least 20 minutes from the time that you turn your pump back on before starting a CGM session. If you do not wait 20 minutes, a CGM error may occur.

Important note about Dexcom support:

For "no restarts" alert or physical problems with your sensor or transmitter, such as bleeding, bruising, skin reaction, adhesive issues, applicator issues, or broken wires, you should contact Dexcom using one of the options at

If you have paired a Dexcom CGM with your Tandem insulin pump, and your question isn't answered in this help section, you should contact Tandem customer technical support for all other issues by calling (877) 801-6901.

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