Hybrid & EV Battery Error Code Guide
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.
Common Hybrid Battery Error Codes & Troubleshooting Tips
- 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 Greentec Auto, 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, Greentec Auto offers prices to suit every budget to ensure hybrid battery replacement doesn’t break the bank.
CUSTOMER FEEDBACK
Trusted by Hybrid & EV Owners Nationwide
Found them through internet search. Requested mobile installation. They called back within 2 hours to set up an appointment. Turns out they had a shop near me, which saved me 50% on installation cost. Took about an hour.
Prompt, quick, professional service. So much cheaper than getting another car. I would highly recommend their service to anyone who needs a hybrid battery replacement.
Chris Walker
January 2, 2025
I was so grateful that my friend told me about this company. What I thought was going to be a $8,500.00 repair, as quoted to me by my regular auto shop, turned into a $2,400.00 repair. I will be forever grateful to Greentec EV & Hybrid Batteries. Thank you guys so much. Their customer service was excellent over the phone, and my experience with the technician that came to my home to do the repair was also excellent. I can’t thank you all enough. You really saved me!!
Lisa Tufano
January 10, 2025
Found them through internet search. Requested mobile installation. They called back within 2 hours to set up an appointment. Turns out they had a shop near me, which saved me 50% on installation cost. Took about an hour.
Prompt, quick, professional service. So much cheaper than getting another car. I would highly recommend their service to anyone who needs a hybrid battery replacement.
Ellrick Garcia
February 13, 2025
CUSTOMER FEEDBACK
Trusted by Hybrid & EV Owners Nationwide
Shipping
The cost of shipping to you is included with your purchase. This offer is good for the entire continental United States. Add $200 for shipping to a residential address. Let Greentec Auto make it simple to return your core to us, ask about our reduced return shipping rates.
Core Charge
A refundable “core deposit” of $500.00 will be added to your order at checkout. Once we receive your old battery, we will refund the core deposit back to you minus the cost of return shipping. Cores must be returned within 45 days of purchase. This applies to shipping orders only. In all other circumstances, the core will be picked up at the time of service, no deposit required.
How do I return my old hybrid battery?
Once your new hybrid battery has arrived, put the core battery back into the same packaging your battery arrived in. As soon as we receive your core battery, we will refund the core deposit back to you. It’s that easy.
Know Your Hybrid’s Battery Health Without Breaking the Bank
If you notice warning lights on your dashboard, don’t rush to the dealership for an expensive diagnostic report. Many local auto parts stores can scan your vehicle and provide error codes for free—Or Contact Greentec Auto to book your Free Diagnostic Today.
Above, we’ve listed some of the most common hybrid error codes. Keep in mind that the check engine light must be on for major issues to be detected. If your vehicle is experiencing hybrid battery failure, dealerships often charge thousands, sometimes tens of thousands of dollars for a hybrid battery replacement—typically with a limited warranty.
At Greentec Auto, we offer an affordable, accessible, and reliable alternative for hybrid battery replacements at a fraction of the price. Plus, we back our hybrid batteries with a comprehensive warranty to give you peace of mind.
Frequently Asked Questions
What are hybrid/EV error codes?
Hybrid and EV error codes are diagnostic trouble codes (DTCs) that indicate issues within a hybrid or electric vehicle’s powertrain, battery system, or electrical components. These codes help mechanics and vehicle owners identify problems such as:
- 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 battery replacement: $1,500–$4,000
- Toyota Prius or Honda Insight on the lower end
- Luxury hybrids cost more
- EV battery replacement: $5,000–$15,000
- Cost depends on battery capacity and manufacturer
Does Greentec Auto offer diagnostics for hybrid error codes?
Yes, Greentec Auto 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.