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Diagnose/P2900
P2900Critical SeverityHybrid/EV

Hybrid Battery Pack Voltage Too High

What This Means

The high-voltage hybrid battery pack voltage exceeds safe operating limits. This could indicate a charging system malfunction or cell imbalance.

Common Symptoms

  • Hybrid system warning light
  • Reduced EV range
  • Power limitation
  • Check engine light on

Common Causes

  • Battery cell degradation
  • Inverter failure
  • Motor winding damage
  • Cooling system issue
  • High-voltage wiring fault

Estimated Repair Cost

$500 – $5000
Parts and labor (varies by vehicle and location)
Difficulty:Professional

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For informational purposes only. Diagnostic trouble codes are starting points for diagnosis, not definitive answers. Always consult a certified mechanic for proper diagnosis and repair. Estimated costs vary by vehicle, location, and shop rates.