t:slim X2 Insulin Pump with Interoperable Technology (with Tandem t:slim mobile app)

FDA Device Recall #Z-2621-2025 — Class II — July 3, 2025

Recall Summary

Recall Number Z-2621-2025
Classification Class II — Moderate risk
Date Initiated July 3, 2025
Status Ongoing
Voluntary Voluntary: Firm initiated

Recalling Firm

Firm Tandem Diabetes Care, Inc.
Location San Diego, CA
Product Type Devices
Quantity 19

Product Description

t:slim X2 Insulin Pump with Interoperable Technology (with Tandem t:slim mobile app)

Reason for Recall

an app defect that occurs when the phone is set to a right-to-left language, which causes app-pump pairing issues and graphical defects, which can potentially lead to incorrect therapy decisions and subsequent hypoglycemia or hyperglycemia.

Distribution Pattern

International distribution to the country of Israel.

Lot / Code Information

Tandem t:slim Mobile App, Android Software Version 2.9.1 UDI-DI code: 00389152470641 Serial Numbers / Cell Phone OS: 1163923 Google Pixel 8 Pro husky [15 35] 1164430 samsung SM-S901E r0qxxx [15 35] 1167131 samsung SM-A346E a34xdxx [14 34] 1299238 samsung SM-G780G r8qxx [13 33] 1300180 samsung SM-S928B e3qxxx [15 35] 1300180 samsung SM-S928B e3qxxx [14 34] 1329242 Google Pixel 6 Pro raven [15 35] 1381313 samsung SM-G780G r8qxx [13 33] 1381315 Google Pixel 9 tokay [16 36] 1381537 samsung SM-A546E a54xnsxx [14 34] 1381570 Xiaomi 2407FPN8EG rothko_global [15 35] 1391808 samsung SM-S711B r11sxxx [14 34] 1391892 samsung SM-N980F c1sxx [13 33] 1392863 samsung SM-S926B e2sxxx [15 35] 1392953 samsung SM-S916B dm2qxxx [15 35] 1393040 samsung SM-S901E r0qxxx [15 35] 90615975 realme RMX3241 RMX3241 [13 33] 90754587 samsung SM-S916B dm2qxxx [15 35] 901144584 samsung SM-S901E r0qxxx [14 34]

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-1519-2025 Class I t:slim X2 Insulin Pump with Interoperable Techn... Feb 27, 2025

Frequently Asked Questions

Contact your healthcare provider and the device manufacturer immediately. Check whether your specific model number and lot number are included in the recall scope. For external devices, stop using the affected product and arrange a replacement. For implanted devices, do not panic — removal is typically not required unless the risk assessment clearly indicates it. Your physician will guide you based on your individual clinical situation and the FDA's recommended actions. Report any adverse effects you may have experienced to FDA MedWatch at 1-800-FDA-1088.

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.