2018 Ford P0562: What It Means & Is It Safe to Drive?
P0562 on the 2018 Ford: System Voltage Low. Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
PowertrainMedium urgency
What this code means
The PCM has detected that system voltage is below the acceptable threshold. Usually points to a failing battery, alternator, or a poor ground connection.
Common causes on the 2018 Ford
- Weak or failing battery
- Failing alternator not producing sufficient output
- Poor battery cable or ground connections
- Parasitic draw draining the battery
Symptoms
- Check Engine Light
- Dim headlights
- Electrical accessories acting erratically
- Hard starting or slow cranking
Typical fixes
- Load-test battery and replace if weak
- Test alternator output and replace if low
- Clean battery terminals and ground connections
Repair cost range
For a 2018 Ford, repairs for P0562 typically fall between $100 and $500, depending on the root cause and labor rates in your area.
Known issues on Ford
Ford P0562 often comes from a failing alternator or battery. On dual-battery F-250/F-350 diesel trucks, check voltage balance between both batteries. Under 13.5V at idle from the alternator indicates insufficient charging.
Most commonly affected models
F-150 2004–2014Explorer 2002–2010Mustang 2005–2009