P0562: System voltage low
Drive carefully. Get it checked within a week or two.
Can I drive with P0562?
Yes, but drive carefully and get it checked soon. Alternator is undercharging or battery is failing; car may stall when electrical load increases.
What does P0562 mean?
P0562 stands for System Voltage Low.
Symptoms you may notice
- Dim headlights and flickering dashboard displays
- Slow engine cranking and weak electrical accessories
- Battery warning light illuminated on instrument cluster
How much does it cost to fix?
Repair costs for code P0562 depend on the specific underlying root cause, ranging from simple DIY checks to component replacement. The table below lists the most common causes and rough price ranges in USD:
- Failing alternator (voltage below 13.0V while running)
- Weak or discharged 12V car battery
- Corroded or loose battery terminal clamps
- Slipping alternator serpentine belt
What to do next
- Check battery terminals for white or blue fuzzy corrosion and tighten them.
- Measure battery voltage with engine running (should be 13.5V to 14.5V).
- Have your alternator and battery bench-tested at any auto parts store.
Last updated: October 2026
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General guidance only, not a professional diagnosis. If the check-engine light is flashing, or the car is running rough, overheating or losing power, stop driving and get help.
About this code
Code P0562 is set when system voltage drops below 10.5 volts for a sustained duration. Sensors, computers, and electric power steering can shut down when voltage drops too low. Turn off non-essential electronics (A/C, seat heaters, stereo) and drive directly to a battery shop or home.