LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

How many key fobs can be programmed?

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Old 02-22-19, 04:55 PM
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Hagar
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Default How many key fobs can be programmed?

I lost and then found one of my two key fobs for my LS430 Smart key system.
And the question I have is IF my LS430 had already had 5 key fobs programmed, would I be looking at a new or rebuilt ECU?
I really don't know if I have a spare slot or not, but what if?
All the key fob questions here and didn't see one covering this.
Old 02-22-19, 06:55 PM
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Jabberwock
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Originally Posted by Hagar
I lost and then found one of my two key fobs for my LS430 Smart key system.
And the question I have is IF my LS430 had already had 5 key fobs programmed, would I be looking at a new or rebuilt ECU?
I really don't know if I have a spare slot or not, but what if?
All the key fob questions here and didn't see one covering this.
I think the max programmed keys is 5 total at one time, but unused programmed keys can be deleted from the ECM, and then new keys can be added/programmed using techstream software.
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