P0562: System Voltage Low
12 vehicles · 7 makes · $50-$1,800 repair
Most Reported On
P0562 is an OBD-II diagnostic trouble code meaning “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. This code is most commonly reported on 2022-2024 Jeep Grand Wagoneer, 2007-2012 Hyundai Veracruz, and 2007-2009 Hyundai Entourage, plus 9 other vehicles, with repair costs ranging from $50 to $1,800.
Common Causes
Typical Repair Cost
Based on 12 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0562, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
Vehicles Affected (12)
12V Auxiliary Battery Drain Preventing System Boot
Intermittent No-Start, Battery Drain, and Control Module Sleep/Wake Electrical Faults
Auto Start-Stop Harshness and Battery Issues
FAQ
What does P0562 mean?
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.
What are the most common causes of P0562?
The most common causes of P0562 are: 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. The specific cause varies by vehicle.
How much does it cost to fix P0562?
Repair costs for P0562 range from $50 to $1,800, depending on the vehicle and root cause.
Which vehicles are affected by P0562?
Au7o has documented P0562 across 12 vehicle models from 7 manufacturers: Cadillac, Chevrolet, Ford, Hyundai, Jeep, Nissan, Subaru.
Sources (12)
- ForumSubaru battery settlement / owner discussions affecting late-model Subaru platforms
- NHTSANHTSA Vehicle Page for 2014 Cadillac ELR - Owner Complaints and Safety Issues
- ForumReddit r/MechanicAdvice Thread Discussing 12V Battery Drain on Cadillac ELR
- NHTSANHTSA complaints for 2021 Cadillac Escalade ESV battery drain and no-start issues
- NHTSANHTSA Vehicle Page for 2020 Cadillac XT6 - Includes complaints related to start-stop system and battery issues
- ForumReddit r/MechanicAdvice Thread Discussing Cadillac XT6 Start-Stop Harshness and Battery Degradation
- RecallNHTSA Recall 14V-634 Part 573 Safety Recall Report (Alternator)
- RecallJeep Grand Cherokee 2014 Electrical System: Alternator Recall 17V435000 - Justia
- article1.3 million Chrysler, Dodge, Jeep vehicles recalled for alternator failure - The Car Connection
- NHTSANHTSA Vehicle Page for 2019 Chevrolet Blazer - Owner Complaints and Investigations
- ForumReddit r/MechanicAdvice Thread on 2019 Chevy Blazer Start-Stop Battery Failure and Related DTC Codes
- videoYouTube - Diagnosing and Replacing a Ford Transit Alternator (Known Channel)
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.