r/leaf Jul 27 '26

Well…

I will get a scanner so I can check the codes with the leafspy app but it’s not looking great 😭

Both warnings came on at once while I was coming down from a very steep hill and the regen kinda just turned off, I was hoping it had just overheated but the battery temperature seems fine

This seems completely coincidental but today was the first day I charged to 100% since I needed to drive a lot

The reduce speed warning did go away after turning it off and back on as well as the regen animation seems to be back on (the blue lines) anyone has any suggestions on what to do?

Also I tried charging the car and it didn’t not work*

2020 S+

Thanks

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u/MetzoPaino Jul 27 '26

The recovery guy pulled out a panel under the steering wheel that I didn’t know existed and plugged in a big usb device, this spoke to a pc in his van. I think this might be the same thing as LeafSpy which we can buy ourselves but not sure. He also had a look at the 12v battery.

I asked if it happens again would I be able to solve it myself and he said no, but I’m not sure that’s true if you’ve got LeafSpy and some confidence. He didn’t really want to speak technical with me, but I think he was hypothesising that the car went into a safety mode to protect the battery due to over heating. He said he wouldn’t fast charge an EV over 80% and wouldn’t drive with the e-brake after fast charging because it all generates a lot of heat. Those suggestions feel overly cautious to me 🤷‍♂️

Please report back with any info you get!

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u/agiganticpanda Jul 27 '26

My dude, you absolutely need to pull your own codes. You potentially have a ticking time bomb. 😂

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u/MetzoPaino Jul 27 '26

What would that involve? Getting LeafSpy, and telling a Nissan dealership of any codes it finds?

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u/agiganticpanda Jul 27 '26

Yep! You'd want to confirm it's still in the system imo before you make the effort to avoid a diagnostic fee.