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2025 FORD F-150
3.5L V6 PowerBoost Hybrid•4WD•AUTOMATIC•hybrid•turbo
13 active safety recalls on this vehicle — view recalls
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Repairs0Labor502Torque148Fluid10DTC1897Battery1Maintenance0Recalls13
P3251moderate severityPowertrain

Regenerative Braking Torque Blending Fault

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

What this code means

The system cannot properly blend regenerative braking with conventional hydraulic braking. The transition between regen and friction braking is abrupt or inconsistent.

Symptoms

  • Jerky braking feel
  • Inconsistent brake pedal response
  • Brake pedal pulsation during blending
  • ABS activation at low speeds
  • Unexpected deceleration changes
  • Brake noise during regen transition

Common causes

  • Brake actuator malfunction
  • Regen torque estimation error
  • Motor response delay
  • Brake hydraulic unit fault
  • Wheel speed sensor disagreement

Diagnostic steps

  1. Monitor regen and friction brake torque simultaneously
  2. Check brake actuator operation
  3. Inspect wheel speed sensor signals
  4. Test brake hydraulic unit solenoids
  5. Compare deceleration rate to commanded braking

Repair notes

Recalibrate brake blending system. Replace brake actuator if faulty. Software update may be available for improved blending.

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