P0562 on RAM
System Voltage Low
P0562 on RAM vehicles indicates system voltage low. Au7o has documented this code across 1 RAM model — most commonly on 1500. 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 RAM range from $300 to $1,800, 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 RAM by Model
RAM 1500(2 issues)
- Low-Speed Stall With Automatic Shift-to-Park and Electric Parking Brake Engagement (Battery Warning, 'Reduced Battery Capacity')2024-2025
A repeating and clearly-defined complaint pattern on 2024-2025 RAM 1500 trucks with the 48V eTorque mild hybrid: at low speed — pulling out of a driveway, rolling in stop-and-go traffic, backing up, or the moment auto stop/start releases — the engine cuts out, the transmission independently selects PARK while the truck is still rolling, and the electric parking brake applies itself. The battery/charging telltale illuminates and some trucks display 'Reduced Battery Capacity'; owners report the alternator gauge showing no output with system voltage sitting at 12V. Restarting requires selecting PARK with the rotary shifter and pressing the start button, sometimes several times. Accompanying messages include 'Service Electronic Stability Control', 'AEB Off' and '4WD System Temporarily Unavailable' as the modules drop offline. NHTSA has more than a dozen such reports spanning May 2024 through May 2026, several from trucks that had been to the dealer five to nine times without resolution. The evidence points to the 48V belt-starter-generator charging path or the auxiliary/48V battery and its sensor dropping out under load, which the powertrain treats as a propulsion fault and responds to by securing the vehicle.
- 2025 RAM 1500 Parasitic 12V Battery Drain / Modules Won't Sleep (Dead Battery, BCM Software TSB)2025-2026
A large number of 2025 RAM 1500 owners (especially Hurricane-equipped trucks) report repeated dead 12V batteries from a parasitic draw where body/comfort modules and proximity sensors fail to enter sleep mode after shutdown. Owners describe waking to a no-start, low system voltage, infotainment freezes, and wireless-charge pads that stay warm. One Texas owner documented an '11.7V death spiral' at under 4,000 miles, with dealers initially finding 'no fault.' Stellantis addresses it with a body-control-module software reflash TSB to force the affected modules to sleep. This is distinct from the older TIPM failure already covered — it is a 5th-gen DT software/electrical-architecture issue on the newest trucks.
Looking for P0562 on a different make?
View P0562 across all makes →Frequently Asked Questions
What does P0562 mean on RAM?▼
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 RAM specifically, this code is documented across 1 model.
What causes P0562 on RAM vehicles?▼
Common causes on RAM: 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 RAM?▼
Repair costs on RAM range from $300 to $1,800, depending on the specific model and root cause.
Which RAM models have P0562 documented?▼
Au7o has documented P0562 on 1 RAM model: 1500.