2004 LC100 key programming - remote works but key can't turn on ignition

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Sep 26, 2021
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Hi all, new LC100 owner here, car is a 2004. I only get 1 transponder key so I bought one with remote (see pic below) and had local key master shop cut it for me - he did mention to me that there are 2 chips in there: 1 for the remote, 1 for the ignition.

I searched on the forum and watched all the videos I can find, now the remote works after following this video (), but the key still won't turn on ignition, it can turn on the power (radio, etc.) but security light remains on all the time.

I just spent an hour doing further research but can't find any way that works, any suggestion is appreciated.

Thank you.

Toyota Keys.jpg
 
Joined
Sep 26, 2021
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Not sure hwo to edit the post, seems the youtube video link is not working, basically what I did to program the remote and it works:

Link to it:
 
Joined
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Bergen County, NJ
LX’99 but hopefully helps. There are 2 separate pedal tap dances to mate the key with the truck … one for the remote unlocking (which sounds like you’ve cracked) and a different one for the immobilizer … don’t have the links on hand but do remember following a YT vid for the immobilizer mating dance and a I8M thread for the remote one. Has been stressed in multiple locations to keep a steady fastish rthym and make sure the pedal goes all the way to the floor …. and it takes a few attempts to get it right. An easier way seems to be via techstream which I can’t comment on. Good luck
 
Joined
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Messages
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LX’99 but hopefully helps. There are 2 separate pedal tap dances to mate the key with the truck … one for the remote unlocking (which sounds like you’ve cracked) and a different one for the immobilizer … don’t have the links on hand but do remember following a YT vid for the immobilizer mating dance and a I8M thread for the remote one. Has been stressed in multiple locations to keep a steady fastish rthym and make sure the pedal goes all the way to the floor …. and it takes a few attempts to get it right. An easier way seems to be via techstream which I can’t comment on. Good luck
Thanks for your reply, I do believe 2002-and 2003+ LC100 have different ways programming keys. I think the pedal tap dances you refered to are:

Transponder portion:
1. Insert master key in ignition
2. Press gas pedal 5 times
3. Press brake pedal 6 times
4. Remove key from ignition
5. Insert new key into ignition
6. Press gas pedal once
7. Wait for the security light to stop blinking (60 sec)

Remote portion:
1. Insert & remove key from ignition
2. Cycle locks 5 times
3. Close & open driver’s door
4. Cycle locks 5 times
5. Insert key into ignition
6. Turn the key to on (Do not start), to off (Locks cycle)
7. Hold lock & unlock buttons (1.5 sec)
8. Press & release the lock button (Locks cycle)

This does not work...Also tried below and does not work:

1. all doors closed
2. master key in and out of ignition 5 times, leave in on 5th time, no turning ever
3. open and close driver door 6 times, leave closed on 6th time
4. pull master key, get solid security light
5. insert new key, blinks for 60 seconds then goes out
6. pull key and open door to cancel mode
7. test new key

Only thing works so far is for the remote:

1. drivers door is open all others closed and drivers door is unlocked.
2. Insert the key into the ignition, Pull key out. twice.
3. Close then open the drivers door. twice.
4. Insert the key into the ignition, Pull key out.
5. Close then open the drivers door. twice.
6. Insert the key into ignition and leave it in ignition.
7. Close the drivers door.
8. Turn the ignition to ON (Do NOT Start) then back to OFF. Remove the key from the ignition.
9. Within 3 seconds, the power door locks should lock then unlock automatically indicating successful entry into programming mode.
10. Press the lock and unlock buttons on the remote key fob clicker simultaneously for 1.5 seconds.
11. Immediately after letting go of the lock and unlock buttons, Press the lock button by itself and hold for 2 seconds. Within 3 seconds, the door locks should lock and then unlock once indicating successful programming.
If the door locks cycle twice, repeat steps A and B in step 6 as the remote key fob was not accepted. C. Repeat steps A and B in step 6 for each new remote fob clickers.
 
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Bergen County, NJ
Another version for s&g …

Program a New Key (2003+):

  1. Simultaneously depress and release brake and accelerator pedals 1 time.
  2. Insert your existing master key into the ignition. Do Not Turn!
  3. Within 15 seconds depress and release accelerator pedal 5 times.
  4. Within 20 seconds open and close the “driver side” door 6 times and remove key.
  5. Within 10 seconds insert new key into ignition.
  6. Turn the ignition cylinder ON and leave on for two minutes.
  7. Turn ignition cylinder OFF and remove new key
  8. Open and close the “driver side” door 1 time.
  9. After 60 seconds new key is registered and Security light goes off.
  10. Depress and release brake pedal 1 time to terminate programming.
  11. Insert new key and observe security light goes out.
  12. Start you Land Cruiser to confirm operation
 

Mauser

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Joined
Jun 20, 2018
Messages
1,692
Location
Central New Mexico
Hi all, new LC100 owner here, car is a 2004. I only get 1 transponder key so I bought one with remote (see pic below) and had local key master shop cut it for me - he did mention to me that there are 2 chips in there: 1 for the remote, 1 for the ignition.

I searched on the forum and watched all the videos I can find, now the remote works after following this video (), but the key still won't turn on ignition, it can turn on the power (radio, etc.) but security light remains on all the time.

I just spent an hour doing further research but can't find any way that works, any suggestion is appreciated.

Thank you.

View attachment 2803807
It looks like you have a valet key, you will need a master or a immo reset to add keys if so.

Watch the security light as you insert your key into the ignition. If it goes out right away you have a master. If it stays lit for a second your key isa valet.
 
Joined
Sep 26, 2021
Messages
9
Location
NYC
Another version for s&g …

Program a New Key (2003+):

  1. Simultaneously depress and release brake and accelerator pedals 1 time.
  2. Insert your existing master key into the ignition. Do Not Turn!
  3. Within 15 seconds depress and release accelerator pedal 5 times.
  4. Within 20 seconds open and close the “driver side” door 6 times and remove key.
  5. Within 10 seconds insert new key into ignition.
  6. Turn the ignition cylinder ON and leave on for two minutes.
  7. Turn ignition cylinder OFF and remove new key
  8. Open and close the “driver side” door 1 time.
  9. After 60 seconds new key is registered and Security light goes off.
  10. Depress and release brake pedal 1 time to terminate programming.
  11. Insert new key and observe security light goes out.
  12. Start you Land Cruiser to confirm operation
Just sent my car in to fix the O2 sensor issues, will try this on Friday and report back, thank you Africaster!
 
Joined
Sep 26, 2021
Messages
9
Location
NYC
It looks like you have a valet key, you will need a master or a immo reset to add keys if so.

Watch the security light as you insert your key into the ignition. If it goes out right away you have a master. If it stays lit for a second your key isa valet.
Thanks Mauser, will watch the security light next time...
 

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