How To Make Your Lexus Remember Your Keys

[smartwave]

Got this from another lexus forum which solved my problem

Basically, every lexus key has two functions: start the engine(immobilizer) and remote control (lock unlock doors, activate/deactivate alarm)

to program the immobilizer bit of your new key:

first, have your new key cut. Then:

For 1998+ Toyota, Lexus

Add Duplicate Key

1. Simultaneously depress and release brake and accelerator pedals 1 time.

2. Insert existing master key into ignition.

3. Within 15 seconds depress and release accelerator pedal 5 times.

4. Within 20 seconds depress and release the brake pedal 6 times and

remove key.

5. Within 10 seconds insert new key into ignition.

6. Within 10 seconds depress and release the accelerator pedal 1 time.

7. After 80 seconds new key is registered and security light goes off.

8. Remove new key and depress and release brake pedal 1 time.

For 2002+ Toyota, Lexus

Add Duplicate Key

Requires one working Toyota/Lexus Master Key.

1. Make sure all doors and windows are closed.

2. Insert Master key into the ignition cylinder.

3. Cycle the ignition cylinder from On to OFF five times.

4. Open and close the “driver side” door 6 times.

5. Remove the Master Key and insert the new duplicates key.

6. TURN THE IGNITION CYLINDER ON.

7. The new key will be registered after 60 seconds. The THEFT light on the dashboard will go out, indicating that programming has been

completed.

to make your lexus remember your key's wireless signal:

For the remote part. in drivers seat WITH DOOR OPEN. start with door unlocked. first put master key in ignition, turn to on, then back off and remove. using the lock/unlock button on drivers door. press lock.. then unlock 5 times.(lock,unlock,lock,unlock,lock,unlock,lock,un lock,lock,unlock)

Close drivers door, open drivers door.

Performe lock/unlock procedure again. DO NOT close and open drivers door. Just the lock/unlock procedure again.

insert NEW key in to ignition and turn to on, then back off and remove.(at this point the doors should lock and unlock by themselves ONCE)

Now press both lock and unlock buttons on REMOTE. release after about 1.5seconds. now press just the lock button on remote. once you press the lock button, the car should lock and unlock ONCE, if it lock unlocked TWICE you messed up somewhere.

now open and close the drivers door a couple times to close programming. if you did it right, remote will now work.

thats it..not to hard once youve done it a few times

I tried this for about 40 minutes and finally my is200 remembers all my keys now.

happy. :D

[Colin P]

very good, I need to do this as only one of my keys works, the other two need batteries, might try and do that today actually

[Andy_F]

4. Open and close the “driver side” door 6 times.

←

Bet you would look like a bit of an idiot sitting in your driveway doing this!

[smartwave]

4. Open and close the “driver side” door 6 times.

←

Bet you would look like a bit of an idiot sitting in your driveway doing this!

←

Comparing to the 30 pounds to Lexus dealer, it's worth to be seen as idiot.

[EZZ]

Brill, gonna keep this info safe. You never know when you'll need it. :D

[FlashBastd]

Sorry to dredge up an old post, but I can't get this to work. I am assuming that as mine is a 2004 car I should use the later method, though I have also tried the earlier one without success.

I don't have a "THEFT" light, I have a "SECURITY" one though, and it isn't interested in coming on solid unless I set the alarm. Otherwise it just flashes, slowly.

Could someone confirm which method I should be using, and make a suggestion as to what I might be doing wrong?

Thanks!

[FlashBastd]

Sorry to dredge up an old post, but I can't get this to work. I am assuming that as mine is a 2004 car I should use the later method, though I have also tried the earlier one without success.

I don't have a "THEFT" light, I have a "SECURITY" one though, and it isn't interested in coming on solid unless I set the alarm. Otherwise it just flashes, slowly.

Could someone confirm which method I should be using, and make a suggestion as to what I might be doing wrong?

Thanks!

It worked! It was the accelerator / brake method. Turns out 80 sec is a long time. The way you know it has worked is that the SECURITY light, which flashes around every 1.5sec stops flashing.

[Cathal]

great post i;ve only got one key so i;ll prob be doing this

just one question my car is 2001 late november, and on my dash my temp gauge is on the bottom and mpg on the top so i'ed probaly have to use the second method??

[FlashBastd]

great post i;ve only got one key so i;ll prob be doing this

just one question my car is 2001 late november, and on my dash my temp gauge is on the bottom and mpg on the top so i'ed probaly have to use the second method??

Mine is a 2004, and the earlier method worked.

[jitendra]

[Does this instructions definately work and have they been tried by any forum members. I have new key with remote and need to get it cut first before I do the jbo.

quote name=smartwave' date='Sep 21 2005, 09:28 AM' post='286342]

Got this from another lexus forum which solved my problem

Basically, every lexus key has two functions: start the engine(immobilizer) and remote control (lock unlock doors, activate/deactivate alarm)

to program the immobilizer bit of your new key:

first, have your new key cut. Then:

For 1998+ Toyota, Lexus

Add Duplicate Key

1. Simultaneously depress and release brake and accelerator pedals 1 time.

2. Insert existing master key into ignition.

3. Within 15 seconds depress and release accelerator pedal 5 times.

4. Within 20 seconds depress and release the brake pedal 6 times and

remove key.

5. Within 10 seconds insert new key into ignition.

6. Within 10 seconds depress and release the accelerator pedal 1 time.

7. After 80 seconds new key is registered and security light goes off.

8. Remove new key and depress and release brake pedal 1 time.

For 2002+ Toyota, Lexus

Add Duplicate Key

Requires one working Toyota/Lexus Master Key.

1. Make sure all doors and windows are closed.

2. Insert Master key into the ignition cylinder.

3. Cycle the ignition cylinder from On to OFF five times.

4. Open and close the “driver side” door 6 times.

5. Remove the Master Key and insert the new duplicates key.

6. TURN THE IGNITION CYLINDER ON.

7. The new key will be registered after 60 seconds. The THEFT light on the dashboard will go out, indicating that programming has been

completed.

to make your lexus remember your key's wireless signal:

For the remote part. in drivers seat WITH DOOR OPEN. start with door unlocked. first put master key in ignition, turn to on, then back off and remove. using the lock/unlock button on drivers door. press lock.. then unlock 5 times.(lock,unlock,lock,unlock,lock,unlock,lock,un lock,lock,unlock)

Close drivers door, open drivers door.

Performe lock/unlock procedure again. DO NOT close and open drivers door. Just the lock/unlock procedure again.

insert NEW key in to ignition and turn to on, then back off and remove.(at this point the doors should lock and unlock by themselves ONCE)

Now press both lock and unlock buttons on REMOTE. release after about 1.5seconds. now press just the lock button on remote. once you press the lock button, the car should lock and unlock ONCE, if it lock unlocked TWICE you messed up somewhere.

now open and close the drivers door a couple times to close programming. if you did it right, remote will now work.

thats it..not to hard once youve done it a few times

I tried this for about 40 minutes and finally my is200 remembers all my keys now.

happy. :D

[Rob]

if you read through the replies you will see it does work

[jlow2008]

if you read through the replies you will see it does work

Hi my car was stolen and when it was returned i only have the metal part of the key, so i can unlock the doors etc but cant start the car.... does this thread relate to my problem? if not anyone know the solution?

Any help appreciated.

James