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Discussion Starter #1
My wife got into her Prius to run an errand. It started as normal but would not go into gear. There were several lights flashing when she called me to come look. Yellow triangle with an exclamation point, On button was red, Park button was flashing green, no error codes showing. I tried jumping it and nothing. Now attempting to shut off the car does not work. Several light stay on. When she got out with the key, an alarm tone sounded until she returned it to the cabin. My search of the forum would seem to indicate the 12V battery needs replacing. Sound right?
 

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That would be a good place to start.......IF the battery is more than 4 years old.
The new one needs to be fully charged before use.

What you are really seeing is the car not going into "ready" mode, which is "not starting" for a hybrid.
 

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Discussion Starter #3
Thanks. I'm fairly sure that we are still on the original battery. How involved is it the get to it and put a multi-tester on it?
 

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Thanks. I'm fairly sure that we are still on the original battery. How involved is it the get to it and put a multi-tester on it?
The battery is likely 10 years old then.
No point in testing it.
Shop for a new one.
I think it is under the back seat and changing shouldn't be too difficult once you find it.
 

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Discussion Starter #5
The battery is likely 10 years old then.
No point in testing it.
Shop for a new one.
I think it is under the back seat and changing shouldn't be too difficult once you find it.
My wife was concerned that I could somehow screw up computer settings by turning this into a DIY job and insisted we bring it to the dealership for repair. It's her car so her call. Given how I was housebound with the Chinese Virus lockdown, I actually relished the thought. I got to drop off the car, walk 2+ miles home and then walk back to pick it up. Win-Win.
 

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Well, you could have walked to the shop, bought a battery and CARRIED IT THE TWO MILES BACK HOME. :)

If you have enough savvy not to connect the cables backwards, or short a metal tool to ground......there is little that can go wrong.
So your wife is worrying unnecessarily.
But, of course, she STILL is right.
 
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