Changing the battery in 2012, ES 350

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06-29-17, 09:15 PM

55ed55

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Changing the battery in 2012, ES 350

I need to change the battery in my 2012, ES 350. I would like to know if I need to keep a separate constant charge on the system while the car battery is not connected. What happens if I do not keep a charge on the system?
Thanks Ed

Last edited by 55ed55; 06-29-17 at 09:22 PM.

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06-29-17, 10:13 PM

flowrider

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No, you can just change the battery. But for your car you should be posting here:

Lou

Last edited by Bichon; 06-30-17 at 08:30 AM.

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07-01-17, 05:18 PM

chuyrobles

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You could lose the memory in some things: ECM, clock, radio, etc.. You can buy a battery saver device that uses a 9-volt battery and plugs in cig lighter. I don't mind resetting everything, but ...

https://smile.amazon.com/Powerbuilt-...ory+saver+tool

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07-01-17, 09:36 PM

flowrider

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^^^^I've changed the battery on my ISF and an ES350 and none of the things you mentioned are affected. However, the power windows need to bet reset. Otherwise, no issues.

Lou

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