Customizing door lock settings requires a handheld tester and the exact correct program card. Attached is a complete list of what can be customized on an 01 LS430.
Personally, I would NOT want to have all my doors unlock when shifting into Park. It's a personal safety (robbery and car jacking) issue.
Would you happen to have this service manual for an '03 LS 430 model?
01 Ls430 Auto Door Lock/unlock Programming
in 01 - 06 Lexus LS430
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Would you happen to have this service manual for an '03 LS 430 model?