Hybrid/EV Battery Pack Temperature Too Low
The HV battery pack temperature is below the safe operating threshold. Power output severely reduced until heating completes.
Affected components
- Hv battery
- Hv battery heater
Common causes
- High likelihood: Extreme ambient cold
- Medium likelihood: Battery heater failed
- Low likelihood: Pack cell imbalance approaching service threshold
Possible symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.