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Hi

I just returned from a week-long trip and while running errands the "Battery" and "Check engine" lights came on, as well as "PS" and I have no idea what it means. Is my battery dead or does it need to be charged? Any and all help is greatly appreciated!

Thanks
 

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'17 C 4
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It is possible that your aux. 12 V battery is just going bad; let's hope that's all it is.
Places like Auto Zone will test that battery for you.

You probably need to visit a qualified hybrid shop......like a Toyota dealer.

There isn't much you can do to diagnose the problem yourself.
At the very least, you need a digital multi-meter ($20 or less) and a "code reader" which runs $100 or less.

For most people, it's better to just take it in.
 
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