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LS 460 Battery disconnection procedure..

ls460 ls 460 battery jump start charge

By Haylands
January 28, 2017 in LS 400 / Lexus LS 430 / Lexus LS 460 / Lexus 600h / Lexus 500h Club

https://www.lexusownersclub.co.uk/forum/topic/110554-ls-460-battery-disconnection-procedure/

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Haylands

Posted January 28, 2017

As these are now getting into the realms of owner servicing etc I thought I would add this info here about Battery removal or disconnection...

It is unusual to have to wait this long after switching off the ignition before disconnecting the Battery, failure to do this could lead to a rather expensive reprogramming of the navigation unit, the description of which takes pages and pages in the workshop manual...!!!

From the Lexus workshop manual.

NOTICE: After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) Battery terminal.

CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) Battery terminal to prevent airbag and seat belt pretensioner activation.

Personally I'm going to put a note on my Battery to remind me...

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https://www.lexusownersclub.co.uk/forum/topic/110554-ls-460-battery-disconnection-procedure/

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