PlainRecalls
ModerateClass IIOngoing

FDA Devices recall · Reported July 25, 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.

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 t…

Recall #
Z-2471-2018
Affected scope
55
Initiated
April 23, 2018
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Tandem Diabetes Care Inc recalled t:slim G4 Insulin Pump with Dexcom G4 Platinum CGM Software version: 4.3.4.3, Firmware… - a moderate-severity action.

t:slim G4 Insulin Pump with Dexcom G4 Platinum CGM Software version: 4.3.4.3, Firmware… was recalled by Tandem Diabetes Care Inc in July 25, 2018. Reason: The fuel gauge, the component that reads and reports the battery parameters to the pump, could provide inaccu…. Check the official notice for the remedy. Verify recall #Z-2471-2018 with the FDA Devices before acting.

The recall

Tandem Diabetes Care Inc issued this moderate-severity FDA Devices recall-The fuel gauge, the component that reads and reports the battery parameters to the pump, could provide inaccu….

Moderate
severity level
55 units
affected scope
Class II
classification
July 25, 2018
reported

Sourced from official FDA Devices enforcement records. Verify recall #Z-2471-2018 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.

Recall Insight

This recall's affected scope, documented in the Recall Profile below, stays within a single-region or limited-distribution footprint. Distribution scope (see Distribution below) directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory.

Within the same product category the archive holds 6 closely related recalls, 6 from FDA Devices - clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.

Medical Devices recalls over time

Where this recall sits in its category - 41,021 medical devices recalls on record

01,0002,0003,0004,000 20052008201120142017202020232026 1,947
Severity1906864652High severity (most serious)Moderate severityLow severity
Where this agency-classified recall sits among FDA Class I/II/III notices

Of 88,244 recalls with an agency hazard classification, 19,068 are high severity, 64,652 moderate, and 4,524 low. A further 16,179 CPSC/NHTSA recalls have no agency class and are excluded from this split. This recall is classified moderate severity.

Counts reflect market size and reporting activity, not inherent danger, we do not rank products by risk from raw recall volume.

Product description

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 for recall

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.

Recall Profile

Structured summary of the FDA Devices recall record
Attribute Value
Agency U.S. Food and Drug Administration
Severity class Moderate (Class II)
Status Ongoing
Recall number Z-2471-2018
Date reported July 25, 2018
Date initiated April 23, 2018
Recalling firm Tandem Diabetes Care Inc
Firm location San Diego, CA
Affected scope 55
Distribution U.S. Consignees: IN, AZ, UT, TX, NY, NJ, MD, MN, IL, CO, AL, WI, CA, PA, OH, OR, MS, FL, NM, ID, NV, KY, VA,

Profile values are sourced directly from the official FDA Devices enforcement record. Source: U.S. Food and Drug Administration.

Scale of Impact

55 units affected - limited or regional distribution scale.

Regional (<10K units) ✓ This recall
Multi-state (10K – 100K units) -
Large-scale (100K – 1M units) -
Massive (≥1M units) -

Bracket cutoffs follow federal recall-disclosure conventions; bar widths scale linearly within each bracket. Source: PlainRecalls analysis of U.S. Food and Drug Administration filings.

What to do with this recall

Match your product against the recall record, then act on the agency remedy.

  • Check the recall number (Z-2471-2018) and product description against the item you own. Search the archive
  • Confirm the current status with FDA Devices before acting, recall details can be updated.
  • Follow the documented remedy (refund, replacement, repair, or disposal) rather than general advice. What to do next

This page summarizes the official FDA Devices record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.

Frequently Asked Questions

What product was recalled?
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.. Recalled by Tandem Diabetes Care Inc. Units affected: 55.
Why was this product recalled?
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.
Which agency issued this recall?
This recall was issued by the FDA Devices on July 25, 2018. Severity: Moderate. Recall number: Z-2471-2018.
Where was the recalled product distributed?
Distribution: U.S. Consignees: IN, AZ, UT, TX, NY, NJ, MD, MN, IL, CO, AL, WI, CA, PA, OH, OR, MS, FL, NM, ID, NV, KY, VA,.
Should I stop using a recalled medication or medical device?
Do not stop using a recalled medication or device without consulting your healthcare provider first, as abruptly discontinuing treatment could pose its own health risks. Your doctor can advise on alternatives or whether the recall applies to your specific product lot. Check the recall number and lot information against your product packaging.

Nationwide recalls with similar severity or category timing

Drug and device notices outside this firm and state, matched by severity timing and product category.

Compare this recall with GORE VIABIL Short Wire Biliary Endoprosthesis, Model No. VS… → · All Medical Devices recalls

This recall: FDA Devices, reported July 25, 2018. Severity classes follow each agency's own taxonomy; related-recall context is computed across the full archive.

Methodology · Corrections · Archive as of August 2026