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

smart key battery replacement

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Old 05-26-15 | 08:29 PM
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Default smart key battery replacement

figured it out. Please close this. Thanks

Last edited by Stu; 05-26-15 at 09:22 PM.
Old 12-09-15 | 04:58 AM
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Originally Posted by Stu
figured it out. Please close this. Thanks

When you figure something out how about sharing it for the entire forum?
Old 12-09-15 | 05:21 AM
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The piece that u slide to release for the key . U slide cap and take it out. Need 3 fingers. ! to slide it. ! to hold it open. ! to pull it off. Hope u understand this. Sounds complicated i know. Hope this helps.
Old 12-09-15 | 05:34 AM
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Originally Posted by lexman52
The piece that u slide to release for the key . U slide cap and take it out. Need 3 fingers. ! to slide it. ! to hold it open. ! to pull it off. Hope u understand this. Sounds complicated i know. Hope this helps.
I guess a youtube video would be too much to ask?


I noticed that one of my smart keys will only allow me to start the car with the key in it.
Old 12-09-15 | 07:20 AM
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U definitely need a battery. Go to a Toyota dealer, they sell them and will install it for u.
Old 12-09-15 | 01:10 PM
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make sure it is a smart key and not a valet key. they look alike except for a small car with the trunk open on the smart key
Old 12-09-15 | 01:58 PM
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Originally Posted by JffGRY706
make sure it is a smart key and not a valet key. they look alike except for a small car with the trunk open on the smart key
Yes, I agree. I was just thinking about that. I will check when I get off of work.
That would suck that the dealer didn't provide me either another valet key or another smart key.
Old 12-09-15 | 04:24 PM
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Well, the other spare key has the trunk emblem on it so I definitely don't have a valet key.
Old 12-09-15 | 05:48 PM
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Originally Posted by tradosauru
I guess a youtube video would be too much to ask?
Not at all...

Old 12-09-15 | 08:30 PM
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Awesome. Thanks.
Old 12-10-15 | 04:17 AM
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I removed the battery from my Smart Key and noticed it was a 2025 button battery. The key calls for a 2032 button battery which I installed.
I found removing the slide release was difficult using two hands since the action of pulling the slide back also has the same action as pushing in so I used a small flat head to push the slide back and pull up.
Old 12-10-15 | 07:51 AM
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The CR2032 is slightly thicker than the CR2015. Both are 3V. The numbering scheme for these batteries are 20mm (first 2 digits) diameter. The last 2 digits represent 3.2mm and 2.5mm thick, respectively for CR2032 and CR2025.
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