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2025 FORD F-150
3.5L V6 PowerBoost Hybrid•4WD•AUTOMATIC•hybrid•turbo
12 active safety recalls on this vehicle — view recalls
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Repairs0Labor505Torque148Fluid10DTC1896Battery1Maintenance0Recalls12
P3201critical severityPowertrain

Hybrid/EV Battery Cell Voltage Imbalance

on 2025 Ford F-150 3.5L V6 PowerBoost Hybrid · 4WD

What this code means

One or more cells in the HV battery pack have significantly different voltage levels from the rest. Cell imbalance reduces pack capacity and can indicate cell failure.

Symptoms

  • Hybrid/EV warning light
  • Reduced electric range
  • Battery SOC drops rapidly
  • Inconsistent regenerative braking
  • Power output limited
  • Uneven charging behavior

Common causes

  • Individual cell degradation
  • Cell internal resistance increase
  • Temperature variation across pack
  • BMS balancing circuit failure
  • Manufacturing defect in cell

Diagnostic steps

  1. Read individual cell voltages via scan tool
  2. Identify weakest cell or module
  3. Check cell temperatures across pack
  4. Test cell internal resistance
  5. Review BMS balancing history

Repair notes

Replace failed battery module(s). In some vehicles, individual modules can be replaced. Full pack replacement if multiple modules affected.

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