jstjohnz

I have an '01 LS430 and have been searching for info regarding programming of key transponders, key remotes, and C-BEST (option) codes.

I haven't yet found anything re the remotes or C-BEST, but I did find the following procedures for programming key transponders on 1998+ Lexus vehicles:

To delete all but one key:

Simultaneously depress and release brake and accelerator 1 time.
Insert an existing Master key, leave in OFF.
Within 15 seconds, depress/release accelerator 6 times.
Within 20 secs depress/release brake 7 times.

Security light will flash, indicating all keys other than the one being used have been deleted.

Within 10 seconds, remove the key from the ignition. This will be the ONLY key still programmed to work.


To add a duplicate key:

Simul depress/release brake and accel 1 time.
Insert existing master key.
Within 15 sec, press/release accel 5 times.
Within 20 sec press/release brake 6 times then remove key.
Within 10 sec insert new key.
Within 10 sec press/release accel 1 time.
After 80 secs, new key is registered and security light goes off.
Remove new key, preee/release brake 1 time.

The bad news is that I tried this procedure on my LS430 and was not able to make it work. I am curious to know if this procedure should work (and I am making some dumb mistake), or is this procedure incorrect or perhaps not applicable to the LS430?

If anyone could help here it would be appreciated, or if anyone has success (or failure) with the above procedures on their vehicles please let me know.

Also I would REALLY like to find the C-BEST option programming procedures. It seems crazy to have to go to a dealer for this.

-jim-

BananaGS

Lexus dealer probably will do your C-best setting for free, at least the first time. they program the key for me for free, but this is good information to know. thnks