P2D4C

Hybrid/EV Battery Pack H Over Temperature

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–556 (est.)

Symptoms

Reduced vehicle power
Dashboard warning
Range limitation (for EVs)
The car goes into emergency mode
Disabling the High Voltage System

Causes

Battery cooling system malfunction
Clogged cooling system air filter
Faulty battery temperature sensors
Damage to the high voltage battery
Intensive use in hot weather

How to Fix

Check coolant level (if liquid cooled)
Inspect the fans and radiators of the battery cooling system
Check battery temperature sensors
Diagnose the condition of a high-voltage battery
Contact a specialized service for hybrid/electric cars

Related codes

P2D4D P2D4E P0AA6