2019 Mercedes-Benz P0562: What It Means & Is It Safe to Drive?
P0562 on the 2019 Mercedes-Benz: System Voltage Low. Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
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 2019 Mercedes-Benz
- 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 2019 Mercedes-Benz, repairs for P0562 typically fall between $100 and $500, depending on the root cause and labor rates in your area.
Known issues on Mercedes-Benz
Mercedes P0562 low voltage requires checking the IBS (intelligent battery sensor) mounted on the negative battery terminal before replacing the battery. Mercedes ECUs require battery registration via XENTRY after replacement—a non-registered battery causes the charging system to undercharge or overcharge.
Most commonly affected models