Lawsuits are actively being filed against Dexcom following a Class I FDA recall of its G6 and G7 continuous glucose monitors (CGMs).The litigation is split into two tracks: personal injury/product liability lawsuits for users who suffered harm due to missed blood sugar alerts, and securities class actions for investors over unauthorized device changes.
As of May 2026, Dexcom faces multiple class-action lawsuits and Class I recalls (the most serious type) over faulty alerts and, in some cases, alleged wrongful deaths related to G6 and G7 CGM systems. Dexcom Lawsuits highlight missed hyperglycemic/hypoglycemic alerts leading to injuries, along with allegations of unauthorized design changes and faulty components causing premature sensor failure.
Why Lawsuits are Being Filed
The legal actions are primarily driven by severe device defects, design changes, and FDA regulatory actions:
- App Malfunctions: Dexcom recalled specific versions of its mobile application that crashed unexpectedly, potentially delaying vital diabetes treatment.

Types of Lawsuits
- Personal Injury and Consumer Claims: Users are suing the company for defective design, failure to warn, and negligence. Plaintiffs claim that faulty alarms and inaccurate readings resulted in life-threatening diabetic emergencies, including severe hypo- or hyperglycemia, diabetic ketoacidosis, and hospitalizations. Users are also seeking refunds for the money they spent on defective CGMs.
- Securities Class Actions: Investors are suing Dexcom for alleged financial damages. They claim the company misled shareholders by failing to disclose the unauthorized design changes and downplaying the health risks associated with the G6 and G7 devices.
Key Updates on Dexcom Lawsuits and Recalls
- Class I Recalls (2025-2026): Multiple Class I recalls were initiated for G6 and G7 receivers due to faulty speakers, which can fail to sound, causing dangerous missed blood sugar alerts. Over 36,000 G6 and 600,000 G7 units were affected.
- Wrongful Death & Injury Lawsuits: Lawsuits, including wrongful death claims, allege that faulty G6 software led to fatal, undetected, severe hyperglycemic episodes.
- G7 Misleading Claims Lawsuit: A class-action lawsuit filed in late 2025 alleges that Dexcom misrepresented the accuracy and reliability of its G7 system, which was found to have “adulterated” materials and frequent early failures.
- Investor Lawsuits: A class action exists for investors who claim Dexcom hid safety issues and made material misstatements about the functionality of the G6 and G7, particularly between July 2024 and September 2025.
- FDA Warning Letters: In March 2025, the U.S. Food and Drug Adminstration (FDA) issued a warning letter regarding “adulterated” G7 devices.

What Affected Users Should Do
Dexcom’s Recalled Device
According to a report in September 2025 by defective device . Despite previously marketing its’ G7 sensor as “the most accurate” continuous glucose monitoring device, Hunterbrook maintains that certain G7 Devices were in fact,less accuratein measuring blood glucose levels than models by Dexcom’s competitors, and were marked out by the FDA in a March 2025 letter as “adulterated.” The report stated in relevant part:
After inaccurate readings from Dexcom’s flagship G7 device, some diabetics are ending up in the ICU — or dead. A surprise FDA inspection revealed Dexcom made an unauthorized design change to a key component of the G7 that internal studies showed was inferior by “every accuracy metric.” Dexcom sold the “adulterated” device anyway. Then several execs fled amid FDA scrutiny, soaring complaints, rising competition, insiders dumping $DXCM, and questionable accounting. Patients are now returning to the G6 or switching to competitors. This investigation reveals Dexcom’s problems are far worse than previously known. It also tackles the mystery: How did a great innovator lose its way — and the trust of diabetics across America?
Hunterbrook Media, Andrew Ford, et al., Dexcom’s Fatal Flaws, September 18, 2025 (emphasis added).
Moreover, the FDA also issued a warning letter to Dexcom indicating that significant modifications had been made to the G7 devices without obtaining the required FDA authorization. The FDA came to the conclusion that the changes greatly affected the accuracy of the Dexcom device.

One individual used a Dexcom G7 CGM with an insulin pump. Although the G7 told him that he had normal readings, the individual suffered a heart attack. At the hospital, he tested for extremely high glucose levels of 1651mg/dL, which his Dexcom lawsuit calls a “fatal level.” The individual’s Dexcom G7 never alerted him.
He developed diabetic ketoacidosis, elevated potassium that caused his heart attack, kidney failure and lactic acidosis because of significantly elevated blood sugar. He never recovered and died from his injuries.
The individual’s wife, filed a wrongful death lawsuit on his behalf.
On May 12, 2025, Dexcom issued an Urgent Medical Device Correction for the defective devices (including the G6 and G7 receivers). Subsequently, on June 16, 2025, the FDA updated it to a Class I recall. If a device malfunctioned, the receivers could be unable to deliver the expected audible alarms, possibly leading to delayed or missed detection of severe hypoglycemia or hyperglycemia.
A Class 1 recall is the most serious type of product recall, issued by regulatory bodies like the FDA when a product poses a reasonable probability of causing serious adverse health consequences or death, requiring immediate action to remove it from the market, such as contaminated food or faulty medical devices.
You may qualify for a Dexcom Lawsuit if you:
If you have questions or are unsure whether you are eligible for a lawsuit against Dexcom, contact Nashville Dexcom Recall Lawsuit Lawyer Timothy L. Miles today foir a free case evaluation and who can answer any questions you may have including whether you qualify for a Lawsuit and could possibly be entitled to substantial compensation. (855) 846–6529 or [email protected].
If you or a loved one used a defective Dexcom device and suffered harm when your Dexcom device malfunctioned, contact Nashville Dexcom Recall Lawsuit Lawyer Timothy L. Miles for a free case evaluation today as you may be eligible for a Dexcom Device Recall Lawsuit and potentially be entitled to substantial compensation. (855) 846–6529 or [email protected].
Timothy L. Miles, Esq.
Law Offices of Timothy L. Miles
Tapestry at Brentwood Town Center
300 Centerview Dr. #247
Mailbox #1091
Brentwood,TN 37027
Phone: (855) Tim-MLaw (855-846-6529)
Email: [email protected]
Website: www.classactionlawyertn.com
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