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Posted

Hi,  on there IS thread thread I've read a few issues on weird happenings from a struggling 12V Battery.  I'm planning on changing mine on the IS at 5 years old.  I assume it is the same for the RX450?  

Reason for posting is her hill hold assist seems to have stopped working recently?  could this be a sign of dodgy 12v Battery?  

Car is a 2012 model and can't see in the history if the 12v has ever been changed (bought used)?

Thanks,

Darren.

Posted
1 hour ago, darrude said:

Reason for posting is her hill hold assist seems to have stopped working recently?  could this be a sign of dodgy 12v battery?

On its own, with no other symptoms, I wouldn't think so. 

From reading other posts on these forums it seems that when the 12V Battery is on its way out it causes lots of warning lights on the dash, random codes and other spurious stuff.

Posted

Thanks Herbie,  thats relieving.  I'll have to check the hill hold out next time I drive it, might be operator error!

I've ordered a 12v meter to check, but stupidly did it from eBay and didn't realise it was coming from china, so won't be here until end of november.  I might search for the multi meter just to be save now the weather is coming cold.  I've been caught out in the past with failing batteries, on normal cars, where I was well aware that the Battery was it's way out!!!

  • Like 1
Posted

My RX400h stopped going into READY mode and showed the "shift to P when starting" message regardless of the shifter position.

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