Dexcom G7 GSS (1) STP-AT-018Recalls & reported problems

Summary

The FDA's MAUDE database contains 939 adverse event reports that list this exact device (DI 00386270004550), received between Feb 14, 2025 and Sep 23, 2026 — classified as 28 injuries, 911 malfunctions.

The most frequently reported specific device problem is “Wireless Communication Problem” (352 reports).

Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. How this data works · Data updated Oct 13, 2026.

Most reported problems

Recent adverse event reports

The 25 most recent of 939 reports, in the reporter's own words as published by the FDA.

• MalfunctionSep 23, 2026Wireless Communication Problem

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 50873491 ↗
• MalfunctionSep 8, 2026Wireless Communication Problem

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 50677658 ↗
• MalfunctionSep 2, 2026Wireless Communication Problem

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 50570702 ↗
• MalfunctionAug 28, 2026Wireless Communication Problem

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 50507396 ↗
• MalfunctionJun 18, 2026Wireless Communication Problem

  IT WAS REPORTED THAT UNSPECIFIED ISSUE OCCURRED. THE SENSOR WAS INSERTED INTO THE ARM ON (B)(6)2026. DATA WAS EVALUATED AND THE ALLEGATION WAS CONFIRMED AS SIGNAL LOSS GREATER THAN AN HOUR WAS CONFIRMED. THE PROBABLE CAUSE WAS DETERMINED TO BE SIGNAL LOSS DUE TO THE TRANSMITTER AND APP WERE NOT BEING ABLE TO ESTABLISH A CONNECTION. THE REPORTED EVENT OF A UNSPECIFIED ISSUE IS REPORTABLE BASED ON THE FINDING OF SIGNAL LOSS GREATER THAN AN HOUR. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 25555825 ↗
• MalfunctionJun 16, 2026Wireless Communication Problem

  IT WAS REPORTED THAT A SIGNAL LOSS OCCURRED. NO PRODUCT OR DATA WAS PROVIDED FOR EVALUATION. THE ALLEGATION AND A PROBABLE CAUSE COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 25520726 ↗
• MalfunctionMay 26, 2026Wireless Communication Problem

  IT WAS REPORTED THAT NO READINGS OCCURRED. THE SENSOR WAS INSERTED INTO THE ARM ON (B)(6) 2026. DATA WAS EVALUATED AND THE ALLEGATION WAS CONFIRMED AS SIGNAL LOSS GREATER THAN AN HOUR WAS CONFIRMED. THE PROBABLE CAUSE WAS DETERMINED TO BE SIGNAL LOSS DUE TO THE TRANSMITTER AND APP WERE NOT BEING ABLE TO ESTABLISH A CONNECTION. THE REPORTED EVENT OF A NO READINGS IS REPORTABLE BASED ON THE FINDING OF SIGNAL LOSS GREATER THAN AN HOUR. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 25278648 ↗
• MalfunctionMay 5, 2026Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. PERFORMANCE DATA WAS REVIEWED. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF SIGNAL LOSS OVER AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE WAS THE TRANSMITTER AND APP WERE UNABLE TO ESTABLISH A CONNECTION. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 25089184 ↗
• MalfunctionApr 30, 2026Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. PERFORMANCE DATA WAS REVIEWED. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF SIGNAL LOSS OVER AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE WAS THE TRANSMITTER AND APP WERE UNABLE TO COMPLETE A DATA TRANSFER. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 25052407 ↗
• MalfunctionApr 30, 2026Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. PERFORMANCE DATA WAS REVIEWED. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF SIGNAL LOSS OVER AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE WAS THE TRANSMITTER AND APP WERE UNABLE TO ESTABLISH A CONNECTION. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 25038904 ↗
• MalfunctionApr 28, 2026Wireless Communication Problem

  IT WAS REPORTED THAT A SIGNAL LOSS OCCURRED. NO PRODUCT OR DATA WAS PROVIDED FOR EVALUATION. THE ALLEGATION AND A PROBABLE CAUSE COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 25021085 ↗
• MalfunctionApr 28, 2026Wireless Communication Problem

  IT WAS REPORTED THAT A SIGNAL LOSS OCCURRED. NO PRODUCT OR DATA WAS PROVIDED FOR EVALUATION. THE ALLEGATION AND A PROBABLE CAUSE COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 25017981 ↗
• MalfunctionApr 27, 2026High Readings

  SUBSEQUENT TO THE INITIAL MDR, A CORRECTION IS REQUIRED. IT WAS REPORTED THAT AN INACCURACY BETWEEN THE CONTINUOUS GLUCOSE MONITOR (CGM) AND THE BLOOD GLUCOSE (BG) METER OCCURRED. THE SENSOR WAS INSERTED INTO THE ARM, ON (B)(6) 2026. IT WAS INDICATED THAT THE PATIENT RUBBED/BUMPED/LAID ON THE TRANSMITTER, WHICH IS MISUSE OF THE DEVICE. DATA WAS EVALUATED AND THE ALLEGATION WAS UNDETERMINED. THE PROBABLE CAUSE COULD NOT BE DETERMINED VIA DATA. THE REPORTED GLUCOSE VALUES FALL WITHIN THE D ZONE OF THE PARKES ERROR GRID. THE DATA INVESTIGATION DID NOT FIND BLOOD GLUCOSE CALIBRATION VALUES TO COMPARE TO CGM VALUES DURING THE REPORTED SENSOR SESSION OR THE CALIBRATIONS DURING THE REPORTED SENSOR SESSION WERE IN ACCURATE RANGE PER DEVICE SPECIFICATIONS. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: Hypoglycemia

  MAUDE report 25010624 ↗
• MalfunctionApr 27, 2026Low Readings

  IT WAS REPORTED THAT AN INACCURACY BETWEEN THE CONTINUOUS GLUCOSE MONITOR (CGM) AND THE BLOOD GLUCOSE (BG) METER OCCURRED. THE SENSOR WAS INSERTED INTO THE ARM ON (B)(6) 2026. DATA WAS EVALUATED AND THE ALLEGATION WAS UNDETERMINED. THE PROBABLE CAUSE COULD NOT BE DETERMINED VIA DATA. THE REPORTED GLUCOSE VALUES FALL WITHIN THE D ZONE OF THE PARKES ERROR GRID. THE DATA INVESTIGATION DID NOT FIND BLOOD GLUCOSE CALIBRATION VALUES TO COMPARE TO CGM VALUES DURING THE REPORTED SENSOR SESSION OR THE CALIBRATIONS DURING THE REPORTED SENSOR SESSION WERE IN ACCURATE RANGE PER DEVICE SPECIFICATIONS. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: Hyperglycemia

  MAUDE report 25007856 ↗
• MalfunctionApr 27, 2026Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. IT WAS INDICATED THAT THE PATIENT WAS USING AN UNSUPPORTED OPERATING SYSTEM, WHICH IS MISUSE OF THE DEVICE. PERFORMANCE DATA WAS REVIEWED. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF SIGNAL LOSS OVER AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE WAS THE TRANSMITTER AND APP WERE UNABLE TO ESTABLISH A CONNECTION. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 25000579 ↗
• MalfunctionApr 23, 2026Wireless Communication Problem

  IT WAS REPORTED THAT A SIGNAL LOSS OCCURRED. NO PRODUCT OR DATA WAS PROVIDED FOR EVALUATION. THE ALLEGATION AND A PROBABLE CAUSE COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 24975049 ↗
• MalfunctionApr 22, 2026Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED FREQUENTLY BETWEEN (B)(6) 2026 AND (B)(6) 2026. DATA WAS PROVIDED FOR INVESTIGATION. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF SIGNAL LOSS OVER ONE HOUR RARELY WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 24949456 ↗
• MalfunctionApr 21, 2026Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. PRODUCT WAS PROVIDED FOR INVESTIGATION. AN EXTERNAL VISUAL INSPECTION WAS PERFORMED AND PASSED. NORDIC BLUETOOTH PAIRING TEST WAS PERFORMED AND FAILED. PERFORMANCE DATA WAS REVIEWED. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF SIGNAL LOSS OVER AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE WAS THE TRANSMITTER AND APP WERE UNABLE TO ESTABLISH A CONNECTION. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 24942214 ↗
• MalfunctionApr 21, 2026Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. PERFORMANCE DATA WAS REVIEWED. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF SIGNAL LOSS OVER AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE WAS THE TRANSMITTER AND APP WERE UNABLE TO ESTABLISH A CONNECTION. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 24940322 ↗
• MalfunctionApr 21, 2026Low Readings

  IT WAS REPORTED THAT AN INACCURACY BETWEEN THE CONTINUOUS GLUCOSE MONITOR (CGM) AND THE BLOOD GLUCOSE (BG) METER OCCURRED. THE SENSOR WAS INSERTED INTO THE ARM ON (B)(6) 2026. DATA WAS EVALUATED AND THE ALLEGATION WAS UNDETERMINED. THE PROBABLE CAUSE COULD NOT BE DETERMINED VIA DATA. THE REPORTED GLUCOSE VALUES FALL WITHIN THE D ZONE OF THE PARKES ERROR GRID. THE DATA INVESTIGATION DID NOT FIND BLOOD GLUCOSE CALIBRATION VALUES TO COMPARE TO CGM VALUES DURING THE REPORTED SENSOR SESSION OR THE CALIBRATIONS DURING THE REPORTED SENSOR SESSION WERE IN ACCURATE RANGE PER DEVICE SPECIFICATIONS. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: Hyperglycemia

  MAUDE report 24938803 ↗
• MalfunctionApr 21, 2026Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. PERFORMANCE DATA WAS REVIEWED. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF SIGNAL LOSS OVER AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 24937215 ↗
• MalfunctionApr 20, 2026High Readings

  IT WAS REPORTED THAT AN INACCURACY BETWEEN THE CONTINUOUS GLUCOSE MONITOR (CGM) AND THE BLOOD GLUCOSE (BG) METER OCCURRED FREQUENTLY BETWEEN (B)(6) 2026. THE SENSOR WAS INSERTED INTO THE ARM ON (B)(6) 2026. DATA WAS PROVIDED FOR INVESTIGATION. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF INACCURACY BETWEEN THE CONTINUOUS GLUCOSE MONITOR (CGM) AND THE BLOOD GLUCOSE (BG) METER OCCURRED OCCASIONALLY WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE OF THE INACCURACY BETWEEN THE CONTINUOUS GLUCOSE MONITOR (CGM) AND THE BLOOD GLUCOSE (BG) METER COULD NOT BE DETERMINED. THE REPORTED GLUCOSE VALUES FALL WITHIN THE D ZONE OF THE PARKES ERROR GRID. THE DATA INVESTIGATION FOUND A DIFFERENCE IN VALUES THAT FALLS WITHIN THE B ZONE OF THE PARKES ERROR GRID. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: Hypoglycemia

  MAUDE report 24925569 ↗
• MalfunctionApr 17, 2026Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. PERFORMANCE DATA WAS REVIEWED. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF SIGNAL LOSS OVER AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE WAS THE TRANSMITTER AND APP WERE UNABLE TO ESTABLISH A CONNECTION. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 24918505 ↗
• MalfunctionApr 17, 2026Detachment of Device or Device Component

  IT WAS REPORTED THAT A DETACHED OR MISSING SENSOR WIRE OCCURRED. THE SENSOR WAS INSERTED INTO THE ARM ON (B)(6) 2026. DATA WAS RECEIVED BUT NOT INVESTIGATED AS DATA WILL NOT CONFIRM THE ISSUE. THE ALLEGATION AND A PROBABLE CAUSE COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: Foreign Body In Patient

  MAUDE report 24917789 ↗
• MalfunctionApr 17, 2026Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. PERFORMANCE DATA WAS REVIEWED. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF SIGNAL LOSS OVER AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE WAS THE TRANSMITTER AND APP WERE UNABLE TO ESTABLISH A CONNECTION. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 24916058 ↗