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. Get the best value with expert service, mobile installation, and a warranty you can trust.
CUSTOMER FEEDBACK
Trusted by Hybrid & EV Owners Nationwide
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—just ask them to run a quick scan with a diagnostic tool.
Above, we’ve listed some of the most common hybrid error codes. Keep in mind that the check engine light must be onfor major issues to be detected. If your vehicle is experiencing hybrid battery failure, dealerships often charge thousands of dollars for a replacement—typically with a limited warranty.
At Greentec Auto, we offer a cost-effective alternative, providing high-quality hybrid battery replacements at a fraction of the price. Plus, we back our batteries with a comprehensive warranty to give you peace of mind.
Frequently Asked Questions
What are hybrid/EV error codes?
Yes! There’s no penalty for paying early.
How do I know if my hybrid battery needs replacement?
You can make or schedule payments at affirm.com or in the Affirm app for iOS or Android. Affirm will send you email and text reminders before payments are due.
Can I drive with a hybrid battery error code?
Yes—you can return an item you bought with Affirm by initiating the return process with the store.
How much does it cost to replace a hybrid or EV battery?
No—your credit score won’t be affected when you create an Affirm account or check your eligibility. If you decide to buy with Affirm, this may impact your credit score. You can find more information in Affirm’s Help Center.
Does Greentec Auto offer diagnostics for hybrid error codes?
Yes, you’ll need a mobile phone number from the U.S. or U.S. territories. This helps Affirm verify it’s really you who is creating your account and signing in.