MAUDE Adverse Event Report: TANDEM DIABETES CARE T:SLIM X2 INSULIN PUMP WITH CONTROL-IQ TECHNOLOGY; ALTERNATE CONTROLLER ENABLED INSULIN INFUSION PUMP

Model Number	1002717
Medical Device Problem Code	Key or Button Unresponsive/not Working (4063)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	01/22/2026
Type of Reportable Event	Malfunction
Event or Problem Description
The customer reported an issue with the pump's quick bolus/wake button, which was difficult to press and required multiple attempts to activate the pump screen.There was no adverse impact on the customer¿s blood glucose level.Multiple attempts were made by tandem technical support to follow-up with the customer on the reported issue, but no response was received.

• Brand Name: T:SLIM X2 INSULIN PUMP WITH CONTROL-IQ TECHNOLOGY
• Common Device Name: ALTERNATE CONTROLLER ENABLED INSULIN INFUSION PUMP
• Manufacturer (Section D): TANDEM DIABETES CARE; 12400 high bluff drive; san diego CA 92130
• Manufacturer Contact: michael trier ; 12400 high bluff drive; san diego, CA 92130 ; 858 401-1451
• MDR Report Key: 24220163
• Report Number: 3013756811-2026-18781
• Device Sequence Number: 8205726
• Product Code: QFG
• UDI-Device Identifier: 00850006613717
• UDI-Public: (01)00850006613717(11)210612
• Combination Product (Y/N): N
• Initial Reporter State: NY
• Initial Reporter Country: US
• PMA/510(K) Number: K203234
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Consumer
• Initial Reporter Occupation: Other
• Type of Report: Initial
• Report Date (Section B): 01/30/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Lay User/Patient
• Device Model Number: 1002717
• Device Catalogue Number: 1006375
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 01/22/2026
• Initial Report FDA Received Date: 01/30/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 12/06/2021
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Reuse
• Patient Sequence Number: 1
• Patient Age: 69 YR
• Patient Sex: Female