Dexcom G7 GSS (155)Recalls & reported problems across all models

We found 2 models of Dexcom G7 GSS (155) by Dexcom, Inc. in the FDA's device registry (GUDID). Together they are named in 588 adverse event reports in the FDA's MAUDE database, received between May 9, 2024 and Nov 13, 2025 — classified as 588 malfunctions.

The most frequently reported specific device problem is “Wireless Communication Problem” (478 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. Widely used products collect more reports, so totals can't be used to compare products or estimate failure rates. Only reports that name a model's exact device identifier are counted. What reports can and can't tell you · How this data works

Most reported Dexcom G7 GSS (155) problems

Dexcom G7 GSS (155) models

2 models, most reported first. Each model has its own page with its reports, recalls and device details.

• Dexcom G7 GSS (155) STP-AT-012

  Integrated Continuous Glucose Monitoring System, Factory Calibrated
  406 reports
• Dexcom G7 GSS (155) STP-AT-013

  Integrated Continuous Glucose Monitoring System, Factory Calibrated
  182 reports

Recent Dexcom G7 GSS (155) adverse event reports

The 15 most recent reports across all models, in the reporter's own words as published by the FDA.

• MalfunctionNov 13, 2025Appropriate Device Problem Term/Code Not Available; Appropriate Device Problem Term/Code Not Available

  IT WAS REPORTED THAT AN ALERT/NOTIFICATION SETTINGS ISSUE 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 23546911 ↗
• MalfunctionOct 22, 2025Appropriate Device Problem Term/Code Not Available; Appropriate Device Problem Term/Code Not Available

  SUBSEQUENT TO THE INITIAL MDR, IT WAS DETERMINED THAT A REPORT WAS SUBMITTED IN ERROR. CUSTOMER ADVOCACY. COMPLAINT IS NOT REPORTABLE PER (B)(4).

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23361221 ↗
• MalfunctionJun 26, 2025Detachment of Device or Device Component; Detachment of Device or Device Component

  IT WAS REPORTED THAT A BROKEN OR DETACHED NEEDLE OR CANNULA OCCURRED. THE SENSOR WAS INSERTED INTO THE ABDOMEN ON (B)(6) 2025. 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 22340598 ↗
• MalfunctionJun 13, 2025Incorrect, Inadequate or Imprecise Result or Readings; Incorrect, Inadequate or Imprecise Result or 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) 2025. 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 22203084 ↗
• MalfunctionJun 6, 2025Incorrect, Inadequate or Imprecise Result or Readings; Incorrect, Inadequate or Imprecise Result or 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) 2025. NO DATA WAS PROVIDED FOR EVALUATION. THE ALLEGATION AND A PROBABLE CAUSE COULD NOT BE DETERMINED. THE REPORTED GLUCOSE VALUES FALL WITHIN THE E ZONE OF THE PARKES ERROR GRID. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: Hyperglycemia

  MAUDE report 22160150 ↗
• MalfunctionMay 27, 2025Incorrect, Inadequate or Imprecise Result or Readings; Incorrect, Inadequate or Imprecise Result or 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) 2025. NO DATA WAS PROVIDED FOR EVALUATION. THE ALLEGATION AND THE PROBABLE CAUSE COULD NOT BE DETERMINED. THE REPORTED GLUCOSE VALUES FALL WITHIN THE D ZONE OF THE PARKES ERROR GRID. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: Hyperglycemia

  MAUDE report 22090032 ↗
• MalfunctionMay 21, 2025Incorrect, Inadequate or Imprecise Result or Readings; Incorrect, Inadequate or Imprecise Result or 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) 2025. NO DATA WAS PROVIDED FOR EVALUATION. THE ALLEGATION AND THE PROBABLE CAUSE COULD NOT BE DETERMINED. THE REPORTED GLUCOSE VALUES FALL WITHIN THE D ZONE OF THE PARKES ERROR GRID. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: Hyperglycemia

  MAUDE report 22061070 ↗
• MalfunctionMay 21, 2025Incorrect, Inadequate or Imprecise Result or Readings; Incorrect, Inadequate or Imprecise Result or 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) 2025. 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 22060765 ↗
• MalfunctionMay 20, 2025Incorrect, Inadequate or Imprecise Result or Readings; Incorrect, Inadequate or Imprecise Result or 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) 2025. NO DATA WAS PROVIDED FOR EVALUATION. THE ALLEGATION AND THE PROBABLE CAUSE COULD NOT BE DETERMINED. THE REPORTED GLUCOSE VALUES FALL WITHIN THE D ZONE OF THE PARKES ERROR GRID. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: Hyperglycemia

  MAUDE report 22057975 ↗
• MalfunctionMay 20, 2025Incorrect, Inadequate or Imprecise Result or Readings; Incorrect, Inadequate or Imprecise Result or 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) 2025. 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 22057357 ↗
• MalfunctionMay 20, 2025Incorrect, Inadequate or Imprecise Result or Readings; Incorrect, Inadequate or Imprecise Result or 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) 2025. 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: No Clinical Signs, Symptoms or Conditions

  MAUDE report 22057237 ↗
• MalfunctionMay 20, 2025Incorrect, Inadequate or Imprecise Result or Readings; Incorrect, Inadequate or Imprecise Result or 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) 2025. 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 22056284 ↗
• MalfunctionMay 20, 2025Incorrect, Inadequate or Imprecise Result or Readings; Incorrect, Inadequate or Imprecise Result or 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) 2025. 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 22054171 ↗
• MalfunctionMay 20, 2025Incorrect, Inadequate or Imprecise Result or Readings; Incorrect, Inadequate or Imprecise Result or 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 ABDOMEN ON (B)(6) 2025. NO DATA WAS PROVIDED FOR EVALUATION. THE ALLEGATION AND THE PROBABLE CAUSE COULD NOT BE DETERMINED. THE REPORTED GLUCOSE VALUES FALL WITHIN THE D ZONE OF THE PARKES ERROR GRID. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: Hypoglycemia

  MAUDE report 22053902 ↗
• MalfunctionMay 19, 2025Wireless Communication Problem; Wireless Communication Problem

  IT WAS REPORTED THAT NO READINGS/ SENSOR ERROR/ BRIEF SENSOR ISSUE OCCURRED. PERFORMANCE DATA WAS REVIEWED. NO READINGS/ SENSOR ERROR/ BRIEF SENSOR ISSUE WAS NOT FOUND WITHIN THE INVESTIGATION WINDOW. THE ALLEGATION WAS NOT CONFIRMED. HOWEVER, SIGNAL LOSS OVER ONE HOUR WAS FOUND IN CONNECTION TO THE REPORTED ALLEGATION. THE PROBABLE CAUSE OF THE SIGNAL LOSS COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 22044114 ↗

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