It is a pretty common battery so you shouldn t have a problem finding a replacement.
Lexus card key battery.
Majority of lexus models since 2010 use cr1632 or cr1616 panasonic batteries which can be retained online through a lexus dealer electrical appliance or camera shop.
How to replace the batteries in your lexus key fob and credit card key.
Licb 10 pack cr1632 3v lithium battery cr.
Cr1632 battery lithium button coin cell batteries 3v 3 volt remote watch jewelry led key fob replacement 1632 cr pack set bulk 2 pack 4 5 out of 5 stars 1 041 6 97 6.
The lexus key uses a cr2032 lithium battery and batteries can be purchased at any lexus service center or from your local walgreens camera store or appliance shop.
This energizer battery works in all kind of car remotes smart keys garage door openers medical devices and more.