RecallRadar

FDA Device recall Z-2471-2018

t:slim G4 Insulin Pump with Dexcom G4 Platinum CGM Software version: 4.3.4.3, Firmware version: 004722, Firmware, Fuel Gauge, Binary Rev B

On 2018-07-25 the FDA classified a Class II recall of t:slim G4 Insulin Pump with Dexcom G4 Platinum CGM Software version: 4.3.4.3, Firmware version: 004722, Firmware, Fuel Gauge, Binary Rev B by Tandem Diabetes Care, citing the fuel gauge, the component that reads and reports the battery parameters to the pump, could provide inaccurate readings, which present to the user in one of two ways: A) by tri….

Read the official FDA Device notice

AgencyFDA Device
Recall numberZ-2471-2018
ClassificationClass II
Statusongoing
Initiated2018-04-23
Published2018-07-25
Last updated2026-09-13 11:54 UTC
CompanyTandem Diabetes Care
DistributionAL, AZ, CA, CO, FL, ID, IL, IN, KY, MD, MN, MS, NJ, NM, NV, NY, OH, OR, PA, TX, UT, VA, WI

Product

t:slim G4 Insulin Pump with Dexcom G4 Platinum CGM Software version: 4.3.4.3, Firmware version: 004722, Firmware, Fuel Gauge, Binary Rev B.

Reason

The fuel gauge, the component that reads and reports the battery parameters to the pump, could provide inaccurate readings, which present to the user in one of two ways: A) by triggering a Malfunction 4 Alarm, or B) by triggering a succession of notifications prior to the pump shutting off, including Alert 2 (Battery Low), Alert 3 (Battery Very Low) and Alarm 12 (Battery Very Low). The alarms in both scenarios notify the user that the pump has stopped delivering insulin.

Identifiers

code_info
Serial Numbers: 483731, 483930, 483992, 484013, 492055, 492368, 501157, 501177, 501178, 501187, 501191, 5012…Serial Numbers: 483731, 483930, 483992, 484013, 492055, 492368, 501157, 501177, 501178, 501187, 501191, 501200, 501202, 501205, 501207, 501268, 501285, 501364, 501368, 501370, 501376, 501385, 501386, 501387, 501432, 501435, 501440, 501443, 501444, 501445, 501466, 501479, 501488, 501490, 501491, 501495, 501503, 501508, 501509, 501519, 501522, 501523, 501526, 501535, 501560, 504522, 504531, 504535, 504540, 504753, 504972, 504990, 505025, 90472671, 90488584

Status history

No status changes recorded since RecallRadar first saw this recall on 2026-09-13 11:54 UTC. Current status: ongoing.

Source

Official record: https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-2471-2018%22

RecallRadar indexes public recall notices from the FDA, USDA FSIS, and CPSC. The official agency notice is the authoritative source. Always confirm details at the linked source before acting.