Brand Name: Tandem t:slim mobile application Product Name: t:slim Mobile Application, iOS Model/C...
FDA Device Recall #Z-3330-2026 - Class II, July 16, 2026
Recall Summary
| Recall Number | Z-3330-2026 |
| Classification | Class II - Moderate risk |
| Date Initiated | July 16, 2026 |
| Status | Ongoing |
| Voluntary | Voluntary: Firm initiated |
Recalling Firm
| Firm | Tandem Diabetes Care, Inc. |
| Location | San Diego, CA |
| Product Type | Devices |
| Quantity | 177 |
Product Description
Brand Name: Tandem t:slim mobile application Product Name: t:slim Mobile Application, iOS Model/Catalog Number: iOS software version 2.13 Software Version: iOS software version 2.13 UDI-DI: 00389152470740 Component: No
Reason for Recall
A beta (early-release) version of the iOS application, version 2.13 (TestFlight) had a software issue preventing successful pairing of the t:slim application with Abbott FreeStyle Libre 3 Plus (FSL3P) continuous glucose monitoring (CGM) sensors, resulting in the insulin pump being unable to establish a near-field communication (NFC) connection with the CGM and requiring FSL3P users to use their t:slim insulin pumps in manual mode. FSL3P users are unable to access their CGM's glucose values from within the t:slim app and cannot use their pumps in automated control (closed-loop) mode, which could lead to users experiencing hypoglycemia or hyperglycemia.
Distribution Pattern
US Nationwide distribution.
Lot / Code Information
Lot Code: UDI-DI: 00389152470641 Software Version: 2.13 (iOS only)
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
A software recall means the device's embedded software or firmware has a defect that could affect its performance or safety. Many software recalls are corrected through firmware updates that can be applied without physically replacing the device. For implantable devices, the update may be delivered wirelessly during a routine clinic visit. For external devices, the manufacturer may provide updated software files or replacement units. Contact your healthcare provider to determine whether your specific device and software version are affected and what action is recommended.
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.