P0562 on Jeep
System Voltage Low
P0562 on Jeep vehicles indicates system voltage low. Au7o has documented this code across 3 Jeep models — most commonly on Grand Cherokee, Grand Wagoneer, Wrangler. 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. Typical repair costs on Jeep range from $200 to $3,000, depending on the specific model and root cause.
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 Jeep by Model
Jeep Grand Cherokee(1 issue)
- Sudden Alternator Failure Causing Stall / Fire Risk (Recalls 14V-634, 17V-435)2011-2014
Grand Cherokees with electro-hydraulic power steering subject the alternator to cyclical electrical loads that cause thermal failure of the internal diodes. The alternator can fail suddenly, stalling the vehicle without warning and, in some cases, short-circuiting and causing an under-hood fire. Multiple NHTSA campaigns cover the 160/180/220-amp units.
Jeep Grand Wagoneer(1 issue)
- Battery drain / no-start due to telematics or module staying awake (parasitic draw)2022-2024
Owner reports and NHTSA complaints describe repeated dead 12V batteries and no-start conditions on Grand Wagoneer, often after sitting overnight or a few days. The pattern is consistent with parasitic draw from modules not going to sleep (commonly telematics/infotainment-related controllers), leading to low voltage and cascading network faults.
Jeep Wrangler(1 issue)
- eTorque Belt-Starter Generator (BSG) / 48V Power Pack Failure — Charging & No-Start2018-2024
eTorque (mild-hybrid) Wranglers replace the conventional alternator/starter with a 48V belt-driven motor-generator (BSG/MGU) plus a 48V power pack unit (PPU) and a 12V system. Owners report charging-system failures, battery warning lights, rough/failed auto-starts during stop-start cycling, voltage drops, stalling, and no-starts. The most common culprit is the 48V PPU rather than the MGU itself, though both fail. The MGU/BSG (Mopar 68452771AF) is expensive and, once replaced, must be programmed with the dealer scan tool or it will not function. Components fall under the 8-year/80k-mile hybrid warranty, but out-of-warranty repairs are costly.
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View P0562 across all makes →Frequently Asked Questions
What does P0562 mean on Jeep?▼
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 Jeep specifically, this code is documented across 3 models.
What causes P0562 on Jeep vehicles?▼
Common causes on Jeep: 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 Jeep?▼
Repair costs on Jeep range from $200 to $3,000, depending on the specific model and root cause.
Which Jeep models have P0562 documented?▼
Au7o has documented P0562 on 3 Jeep models: Grand Cherokee, Grand Wagoneer, Wrangler.