


Diagnose Your Battery Issues & Find the Right Solution
Hybrid and EV vehicles are engineered for efficiency, but battery-related issues can trigger warning lights and error codes. Understanding these codes can help you determine whether a battery replacement or repair is needed.

C1241 Low Battery Positive Voltage
SYMPTOMS:
- Check Engine Light or "Service Engine Soon" Warning
- ABS Warning Light
Possible Causes:
- Low Battery Charge
- Faulty Battery
- Faulty Charging System

P3011-P3027 Weak Battery Blocks (Toyota Prius 2007-2015)
SYMPTOMS:
- Reduced Fuel Efficiency
- Poor Battery Performance
Possible Causes:
- Failing HV Battery Assembly
- Battery Blocks Becoming Weak (P3011 = Block 1, P3012 = Block 2, etc.)

P3000 Battery Control System Malfunction
SYMPTOMS:
- Engine & Triangle Warning Light On
Possible Causes:
- HV Control System Failure
- Low Fuel Supply
- HV Battery Malfunction

P0A80 Replace Hybrid Battery Pack
SYMPTOMS:
- Decreased Fuel Efficiency
- Reduced Power & Acceleration
Possible Causes:
- Defective HV Battery or Modules
- HV Battery Fan/Computer Failure
- Corroded or Loose Connectors

Need a Battery Replacement?
Why pay more at the dealership? At GreenKevin, we offer affordable, accessible, and reliable hybrid battery replacements at up to 50% less than dealership prices without compromising on quality.
We know hybrid battery replacement can be a hassle. Save time with our mobile installation service, where we come to you, bringing hybrid battery replacement right to your doorstep. While you might hear crazy stories online, GreenKevin offers prices to suit every budget to ensure hybrid battery replacement doesn’t break the bank.
Frequently Asked Questions
What are hybrid/EV error codes?
- Hybrid battery failure
- High voltage system malfunctions
- Charging system errors
- Regenerative braking issues
Common Hybrid Battery Error Codes Include:
- P0A80 – Replace Hybrid Battery Pack
- P0A7F – Hybrid Battery Pack Deterioration
- P0AC0 – Hybrid Battery Pack Current Sensor Circuit Low
If your vehicle displays a hybrid system warning light or check engine light, scanning for error codes using an OBD2 scanner can help diagnose the issue.
How do I know if my hybrid battery needs replacement?
You may need a hybrid battery replacement if you notice:
- Decreased fuel economy – The gas engine runs more to compensate for a weak battery.
- Battery warning light or error codes – Codes like P0A80 (Replace Hybrid Battery) signal failure.
- Starting issues or weak charge – A failing high-voltage battery may not hold power.
- Loss of power and performance – Sluggish acceleration or reduced electric mode use.
- Loud battery fan noise – Overheating due to battery cell deterioration.
Use an OBD2 scanner or visit Greentec Auto for a free diagnostic.
Can I drive with a hybrid battery error code?
No, it is not recommended to drive with a hybrid battery error code, especially if it is P0A80 (Replace Hybrid Battery) or similar. These issues can cause:
- Reduced power
- Poor fuel economy
- Engine shutdown
If the Check Hybrid System warning appears, your car may enter limp mode, limiting performance. Driving further could damage the gas engine or high-voltage system.
How much does it cost to replace a hybrid or EV battery?
Hybrid and EV battery replacement costs vary based on the make, model, and battery type. On average:
- Hybrid battery replacement: $1,500–$4,000
- EV battery replacement: $5,000–$15,000
Does Greenkevin Auto offer diagnostics for hybrid error codes?
Yes, Greenkevin offers free diagnostics for hybrid battery error codes.
If your vehicle displays a Check Hybrid System warning or an error code like P0A80 (Replace Hybrid Battery), our experts can scan your system and provide a detailed diagnosis at no cost.