Dexcom, Inc.: Device Recall

Recall Details

Recall Number

Z-1906-2025

Classification

Class II

Product Type

Device

Recalling Firm

Dexcom, Inc.

Status

Ongoing

Date Initiated

05/05/2025

Location

San Diego, CA, United States

Voluntary/Mandated

Voluntary: Firm initiated

Product Quantity

61,355 users

Reason for Recall

A bug in the 2.7.0 version of the G7 iOS App can cause the app to enter a state where it stops updating the estimated glucose value (EGV) and continues to show this stale EGV. If the user is unaware that the EGVs are not being updated and that glucose alerts will not trigger, there is potential for the missed detection of a hyperglycemic or hypoglycemic event or a treatment decision made based off incorrect data. There is no impact to transmitter communication with concurrently connected displays. A concurrently connected receiver, Apple Watch, and/or insulin pump will continue to receive EGVs directly from the transmitter when the app is in the problematic state. There is no impact to Automated Insulin Dosing (AID) therapy as the AID system continues to receive EGVs directly from the transmitter.

Product Description

Dexcom G7 iOS Application, Ref: SW12300 used in conjunction with the Dexcom G7 Continuous Glucose Monitoring (CGM) system

Distribution Pattern

Worldwide Distribution: US (nationwide) and OUS (foreign) to countries of: United Arab Emirates (AE), Austria (AT), Australia (AU), Belgium (BE), Bahrain (BH), Canada (CA), Switzerland (CH), Czech Republic (CZ), Germany (DE), Denmark (DK), Spain (ES), Finland (FI), France (FR), United Kingdom (GB), Hong Kong (HK), Ireland (IE), Israel (IL), Iceland (IS), Italy (IT), Jordan (JO), Korea, Repulic (KR), Kuwait (KW), Lebanon (LB), Lithuania (LT), Luxemburg (LU), Malta (MT), Netherlands (NL), Norway (NO), New Zealand (NZ), Oman (OM), Poland (PL), Portugal (PT), Qatar (QA), Saudi Arabia (SA), Sweden (SE), Slovenia (SI), Slovakia (SK), Turkey (TR) and South Africa (ZA).

Other Recalls by Dexcom, Inc.

• Class I: Dangerous 08/28/2025
  A software defect in version v1.15.0 of the G6 Android app can cause the app to terminate unexpectedly, which may result in the user not receiving estimated glucose values, alarms, alerts or notifications. This could result in the missed detection of a hyperglycemic or hypoglycemic event, protentional resulting in severe hyperglycemia, diabetic ketoacidosis (DKA), or hyperosmolar hyperglycemic state (HHS).
• Class I: Dangerous 07/24/2025
  The affected devices are the Dexcom G7 Continuous Glucose Monitoring System (CGM System) using iOS, watchOS and Android App software (versions 2.8.0 or earlier) and Dexcom ONE+ CGM System using iOS and Android App software (versions 1.4.0 or earlier), henceforth referred to as the App. The affected App does not provide an expected "Sensor Failed" alert when the transmitter sends a "transmitterFailed" error message to the App when the CGM experiences a hardware or firmware failure. Instead, the App ends the CGM sensor session, stops reporting glucose values and displays the Start Sensor screen or No active sensor message without alerting the user, which can lead to missed detection of a hyperglycemic or hypoglycemic event and a delay in treatment.
• Class I: Dangerous 07/24/2025
  The affected devices are the Dexcom G7 Continuous Glucose Monitoring System (CGM System) using iOS, watchOS and Android App software (versions 2.8.0 or earlier) and Dexcom ONE+ CGM System using iOS and Android App software (versions 1.4.0 or earlier), henceforth referred to as the App. The affected App does not provide an expected "Sensor Failed" alert when the transmitter sends a "transmitterFailed" error message to the App when the CGM experiences a hardware or firmware failure. Instead, the App ends the CGM sensor session, stops reporting glucose values and displays the Start Sensor screen or No active sensor message without alerting the user, which can lead to missed detection of a hyperglycemic or hypoglycemic event and a delay in treatment.
• Class I: Dangerous 07/24/2025
  The affected devices are the Dexcom G7 Continuous Glucose Monitoring System (CGM System) using iOS, watchOS and Android App software (versions 2.8.0 or earlier) and Dexcom ONE+ CGM System using iOS and Android App software (versions 1.4.0 or earlier), henceforth referred to as the App. The affected App does not provide an expected "Sensor Failed" alert when the transmitter sends a "transmitterFailed" error message to the App when the CGM experiences a hardware or firmware failure. Instead, the App ends the CGM sensor session, stops reporting glucose values and displays the Start Sensor screen or No active sensor message without alerting the user, which can lead to missed detection of a hyperglycemic or hypoglycemic event and a delay in treatment.
• Class I: Dangerous 07/24/2025
  The affected devices are the Dexcom G7 Continuous Glucose Monitoring System (CGM System) using iOS, watchOS and Android App software (versions 2.8.0 or earlier) and Dexcom ONE+ CGM System using iOS and Android App software (versions 1.4.0 or earlier), henceforth referred to as the App. The affected App does not provide an expected "Sensor Failed" alert when the transmitter sends a "transmitterFailed" error message to the App when the CGM experiences a hardware or firmware failure. Instead, the App ends the CGM sensor session, stops reporting glucose values and displays the Start Sensor screen or No active sensor message without alerting the user, which can lead to missed detection of a hyperglycemic or hypoglycemic event and a delay in treatment.

View all recalls by Dexcom, Inc. →