P0562 on Subaru
System Voltage Low
P0562 on Subaru vehicles indicates system voltage low. Au7o has documented this code across 1 Subaru model — most commonly on WRX. P0562 means the engine computer detected that the vehicle's system (battery/charging) voltage is too low for normal operation. The computer constantly monitors charging-system voltage because nearly every sensor, injector, and module depends on a stable supply; sustained low voltage can cause erratic behavior and other false codes. This is most often a charging or battery problem — the alternator isn't keeping up, the battery is weak, or there's resistance in the cables/grounds. You may notice dim lights, slow cranking, or multiple unrelated warning lights.
Common Causes of P0562
- •Failing alternator or worn alternator brushes/regulator
- •Weak, old, or discharged battery
- •Corroded, loose, or damaged battery cables and terminals
- •Bad engine or chassis ground connections
- •Slipping, glazed, or broken serpentine/drive belt
- •High resistance in charging system wiring or fusible link
- •Faulty PCM voltage reference or charging-system control
P0562 on Subaru by Model
Subaru WRX(1 issue)
- Battery Drain / No-Start After Sitting Due to Low Quiescent Voltage2022-2025
A recurring owner complaint on late-model Subarus including the VB WRX is premature battery discharge, leading to slow cranking or a no-start condition after the car sits for a short period. Owners often report the vehicle tests fine after a jump but repeatedly goes dead, especially in cold weather or with short-trip use. The issue appears tied to battery reserve capacity, charging profile, and occasional parasitic draw concerns rather than a single universal failed component.
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What does P0562 mean on Subaru?▼
P0562 stands for "System Voltage Low." P0562 means the engine computer detected that the vehicle's system (battery/charging) voltage is too low for normal operation. The computer constantly monitors charging-system voltage because nearly every sensor, injector, and module depends on a stable supply; sustained low voltage can cause erratic behavior and other false codes. This is most often a charging or battery problem — the alternator isn't keeping up, the battery is weak, or there's resistance in the cables/grounds. You may notice dim lights, slow cranking, or multiple unrelated warning lights. On Subaru specifically, this code is documented across 1 model.
What causes P0562 on Subaru vehicles?▼
Common causes on Subaru: Failing alternator or worn alternator brushes/regulator, Weak, old, or discharged battery, Corroded, loose, or damaged battery cables and terminals, Bad engine or chassis ground connections, Slipping, glazed, or broken serpentine/drive belt. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0562 on a Subaru?▼
Repair costs vary widely depending on the root cause and specific Subaru model.
Which Subaru models have P0562 documented?▼
Au7o has documented P0562 on 1 Subaru model: WRX.