Tandem pumps are battery-operated infusion pumps capable of both basal and bolus delivery of insu...

FDA Device Recall #Z-1636-2026 — Class II — January 30, 2026

Recall Summary

Recall Number Z-1636-2026
Classification Class II — Moderate risk
Date Initiated January 30, 2026
Status Ongoing
Voluntary Voluntary: Firm initiated

Recalling Firm

Firm Tandem Diabetes Care, Inc.
Location San Diego, CA
Product Type Devices
Quantity 1,380 units

Product Description

Tandem pumps are battery-operated infusion pumps capable of both basal and bolus delivery of insulin. The pumps utilize a motor-driven mechanism to deliver insulin from within a disposable cartridge, through an infusion set, into a patient s subcutaneous tissue. As with current insulin infusion pumps on the U.S. market, the desired timing and quantity of the insulin delivery is programmed by the user (i.e., the patient).

Reason for Recall

The Czech language user guide contained multiple translation errors. The most significant error was that it incorrectly instructs users to verify that the infusion set is connected to the body, when it should instead direct users to confirm that the infusion set is not connected to the body. Following this instruction could result in unintended insulin delivery, potentially leading to a hypoglycemic event.

Distribution Pattern

International distribution in the countries of Czech Republic, Slovakia.

Lot / Code Information

Version 7.8.1/ UDI: (01)008500066132625

Other Recalls from Tandem Diabetes Care, Inc.

Recall # Classification Product Date
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
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.