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What is the warranty on a Toyota Prius hybrid battery?

My Prius’ battery has been having trouble lately. I know they’re expensive to replace so I’m hoping it’s under warranty, but I can’t find my warranty information anywhere. Can you tell me what the warranty is on a Prius battery?

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Cassandra Hamilton · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Jumpstarting your dead car battery back to life
won’t help in this instance—you might need a whole new battery! So what is the warranty on a Toyota Prius hybrid battery? The answer might surprise you because it’s pretty generous!
The warranty on a Toyota Prius hybrid battery is 10 years or 150,000 miles, whichever comes first. That only applies if you live in a state that has the same emissions laws as California, though. In all other states, the warranty expires after eight years or 100,000 miles.
Here are some signs your Prius’ battery is failing:
  • Decreased mileage
  • Strange engine noises
  • Charge state fluctuations
  • Dramatic drops in battery bars
It’s better to deal with a battery issue before it becomes a real problem. But you may also want to consider adding
towing and labor coverage
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