P0562: System Voltage Low
A generic powertrain (engine and transmission) trouble code, same meaning on every brand.
To a shop or parts store, yes - but a car with a failing charging system can die mid-drive. Test today.
Symptoms
- Dim lights, slow accessories
- Battery warning light
- Multiple random electrical codes together
Likely causes, most common first
- Alternator output failing
- Worn battery dragging the system down
- Corroded battery terminals or ground straps
- Loose serpentine belt
Read P0562 yourself before paying for diagnosis
A basic Bluetooth OBD-II scanner ($20-40) plugs into the port under the dashboard and shows this code with live sensor data on your phone - useful both for confirming the fix and for talking to a shop from an informed position.
What is going on and how it gets diagnosed
P0562 means system voltage sagged below threshold while running - the electrical system is not keeping itself fed. Modern cars tolerate low voltage badly: modules brown out and log unrelated codes, so P0562 often arrives with a confusing crowd of passengers.
Free charging-system tests at parts stores settle alternator-versus-battery in ten minutes. Clean terminals first; a fifty-cent layer of corrosion perfectly imitates a dying alternator.
Repair options and cost
Typical US independent-shop ranges, parts and labor. Dealers run higher; regional labor rates vary.
Owner reports mentioning P0562
“- [ ] U1412 implausible vehicle speed signal received - [ ] U0402 implausible data received from tcm - [ ] P0562 battery system/voltage low - [ ] P032f combustion engine producing insufficient torque Car completely shut off when attempting to turn onto Route 73 in NJ. The car was stuck in the intersection causing a threat to life and well-being of those not only in the Wagoneer but to the other drivers as the car could not be moved until towed. This took over an 1.5 hours to get towed and traffic had to be diverted by police.”2022 Jeep Wagoneer · Sep 2026
Cars that report P0562 most often
Based on mentions of this code in NHTSA owner complaints.
Frequently asked questions
Can I drive with P0562?
To a shop or parts store, yes - but a car with a failing charging system can die mid-drive. Test today.
How much does it cost to fix P0562?
Typical US repair costs range from $20 for the simplest fix (terminal or ground cleaning) to $900 in the worst case. The right number depends on which cause your car has - see the causes list.
Related codes
The codes closest to P0562. They often appear together, and telling them apart is usually what narrows the diagnosis.
Definition per SAE J2012 standard nomenclature. Symptoms, causes and costs are editorial guidance - always confirm with a diagnosis of your specific vehicle.