P0562moderate severityPowertrain
System Voltage Low
on 2023 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD
What this code means
The system voltage is below the acceptable threshold.
Symptoms
- Check Engine Light
- Battery light on
- Dim lights
- Electrical accessories malfunctioning
- Hard starting
Common causes
- Weak battery
- Faulty alternator
- Corroded battery terminals
- Loose serpentine belt
- Bad ground connection
Diagnostic steps
- Test battery voltage (should be 12.6V static, 13.5-14.5V running)
- Load test battery
- Test alternator output
- Inspect belt tension
- Clean battery terminals
- Check ground straps
Repair notes
Test battery and alternator. Clean terminals. Most common: failing alternator.
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P0118
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P0125
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