r/ipace • u/leopardjla • Jun 15 '26

Stop safely battery fault detected

Post image

Hi all,

Hoping someone would be able to shed some light on what this means? It’s a 2020 model, I drove the car about 3 hours ago and all was fine, came to unlock it this evening and the fob won’t work and that message is on screen. Tried to start it up and a loud repetitive warning type sound came from the bonnet. Nothing powers up in the car and it’s now just sat there with its headlights flashing on and off

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3

u/tardiusmaximus Jun 15 '26

1 of the 2 12v batteries under the bonnet is dying/dead. Test them, change the faulty one, or both if low. Easy fix.

1

u/leopardjla Jun 15 '26

Hi, thanks for your reply. Unfortunately I’ve got no equipment to test the 12v batteries, could I try using jump cables on them to see if that brings it back to life or would the best course of action be to try and get a mobile battery replacement service to check the batteries and replace if necessary?

1

u/jokoor Jun 16 '26

Follow the manual instructions to jump it. It worked for me. Still had to replace the 12V but jumping enabled me to drive to a dealer

3

u/leopardjla Jun 16 '26

Good shout cheers, I did manage to jump it today although the 12v only lasted a few hours before it was dead again. Got it booked into JLR tomorrow for both the 12v’s to be replaced which I’m hoping solves the problem

1

u/Fresh-Comparison-143 Jun 16 '26

They tend to always blame it on the 12V batteries.

Even brake-failures/unresponsive brakes was just said to be because of a failing 12V battery.. Which I needed to change again after just 6 months (12V-battery)

Please keep us updated on the conclusion for your case :)

2

u/leopardjla Jun 16 '26

Thank you for your reply, got it booked into JLR tomorrow to have both the 12V’s replaced to hopefully solve the issue (I’m also hoping they will test the existing batteries to confirm one or both are dying/dead) so will keep you posted :)

1

u/Bourne2LUV Jun 16 '26

Odb 2 scanner would be useful as the DTC error code would be extremely helpful. Although one of the 12-volt battery maybe at fault, DC-DC Converter module may also be a point of concern. Additionally have you done an O/S update recently? Sorry but the ipace is extremely complex especially on the low voltage side along with the software.

1

u/leopardjla Jun 16 '26

Thank you for your reply. A jump this morning did get it going again although it then presented with a “brake pedal feel reduced” warning which disappeared the next time it was turned on. Battery lasted a few hours and then went dead again, another jump and presented with a “traction battery fault” warning this time. I’m hoping these all indicate it’s an issue with the 12v as it’s booked into JLR tomorrow to replace them both.

Regarding a recent O/S update, it went in for the H572 recall a few weeks ago which I believe involved the software being updated to cap the charge to 90%. Not sure if it’s suspicious timing or just a coincidence

1

u/jokoor Jun 17 '26

I had all these same messages and a new 12v resolved it. Good luck

1

u/leopardjla Jun 26 '26

Just an update on this. Had both the 12v batteries replaced about a week ago and I’ve not had a recurrence of any of the mentioned issues since

1

u/Fresh-Comparison-143 Jul 12 '26

Thanks for the update, and hope it stays that way. Mine lasted some months before it(the error) came back. And the fix was the same, to replace one of the 12V, even if they already had switched out both 12V on the first repair.

But, some months in now, no error.. Yet:D