P2D49

Hybrid/EV Battery Pack E Over Temperature

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–556 (est.)

Symptoms

Reduced engine power
Warning messages on the dashboard
Speed limit
Automatic shutdown of high voltage system
Extended charging time (for PHEV/BEV)

Causes

Battery cooling system malfunction
Clogged cooling system air filter
Cooling fans malfunction
Problems with battery temperature sensors
Battery cell degradation

How to Fix

Check the level and condition of the coolant
Diagnose the operation of cooling fans
Check battery temperature sensors
Clean the air passages of the cooling system
Diagnosis of battery cell condition
Repair only from an authorized dealer

Related codes

P2D48 P0AA6 P0A7F