t:connect mobile app used in conjunction with t:slim X2 insulin pump with Control-IQ technology

FDA Device Recall #Z-1609-2024 — Class I — March 5, 2024

Recall Summary

Recall Number Z-1609-2024
Classification Class I — Serious risk
Date Initiated March 5, 2024
Status Ongoing
Voluntary Voluntary: Firm initiated

Recalling Firm

Firm Tandem Diabetes Care, Inc.
Location San Diego, CA
Product Type Devices
Quantity 85,863 applications

Product Description

t:connect mobile app used in conjunction with t:slim X2 insulin pump with Control-IQ technology

Reason for Recall

During normal use, the mobile app version 2.7 may crash and be automatically relaunched by the iOS operating system. This cycle intermittently repeats, which leads to excessive Bluetooth communication that may result in pump battery drain and may lead to the pump shutting down sooner than typically expected. Pump shutdown will cause insulin delivery to suspend, which could lead to an under-delivery of insulin and may result in hyperglycemia, including severe hyperglycemia.

Distribution Pattern

US nationwide distribution including Puerto Rico.

Lot / Code Information

version 2.7 or later /UDI: 00850006613274

Other Recalls from Tandem Diabetes Care, Inc.

Recall # Classification Product Date
Z-1636-2026 Class II Tandem pumps are battery-operated infusion pump... Jan 30, 2026
Z-0427-2026 Class I Tandem Mobi Insulin Pump: Description/Catalog:... Oct 6, 2025
Z-0232-2026 Class II t:slim X2 insulin pump with Interoperable Techn... Aug 5, 2025
Z-2343-2025 Class I Battery Operated infusion pumps. t:slim X2 G5, ... Jul 21, 2025
Z-2621-2025 Class II t:slim X2 Insulin Pump with Interoperable Techn... Jul 3, 2025

Frequently Asked Questions

Contact your physician immediately if you use an electrical device or implant affected by this recall. For external devices (monitors, pumps), stop using the device and contact the manufacturer for a replacement. For implanted devices (pacemakers, ICDs), your cardiologist will assess whether you need device replacement surgery — the decision depends on how dependent you are on the device and the actual failure rate observed in the field. Do not attempt to repair or modify a recalled electrical medical device yourself. Monitor for any new or unusual symptoms and report them to your doctor.

Class I recalls indicate a reasonable probability of serious adverse health consequences or death from the defect. Class II recalls involve products that may cause temporary or medically reversible adverse health consequences, or where serious consequences are remote. Class III recalls cover products not likely to cause any adverse health consequences, typically involving technical regulatory violations. The classification guides urgency — Class I recalls require immediate action, while Class III may simply involve returning a product or acknowledging a labeling change. Always read the specific recall notice for recommended patient actions.

Report problems with medical devices to the FDA through MedWatch at 1-800-FDA-1088 or online at FDA.gov/safety/medwatch. Healthcare facilities are required by law to report device-related serious injuries and deaths. Patients and consumers can also report voluntarily. Include the device name, manufacturer, model number, and a description of the problem and any patient outcome. Reports from patients and clinicians help the FDA identify emerging safety signals and may trigger investigations that lead to recalls of dangerous devices.

What Should You Do?

Stop using this device if you are affected by this recall. Contact your healthcare provider and the manufacturer immediately for guidance. Report adverse events to FDA MedWatch.