12 Volt Battery Problems

Pierobudz · Feb 18, 2019

tigerpilot said: ↑

2009 Prius 36,000. Driven at least 30 miles per day. Two months ago, 12 volt battery wouldn’t boot up car. Crazy messages on MFD like “Park on level surface and apply parking brake.” Jump started and drove car to the dealer. No problems found. Three weeks later, same problem. Again, no problems found but dealer replaced the battery. About three weeks later same problem except this time got the friendly Triangle illuminated. Drove to dealer and left car. I have an extended warranty so Im not too worried about any costs. The next morning the triangle was NOT lit and the only error code was low voltage. No interior lights on and current draw is normal when car is parked. Dealer at a loss and has called Toyota for help. Maybe you folks know more than the dealer. Wouldn’t be at all surprised. Welcome any suggestions.
Regards, Don…Naples Florida
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Hi Tigerpilot, I'm having the exact same problem. Battery is in good shape but keeps draining. Did you find out what it was?

bisco · Feb 19, 2019

check the draw on the battery when the car is off

12 Volt Battery Problems

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