PDubs

Product I'm attempting to use is the
The instructions that came with it leave much to be desired and in reading through those and the comments/reviews, I'm a little gunshy to try this thing out. I purchased a new keyfob online and was able to program the buttons successfully but the actual chip will not talk with the immobilizer. I found a thread here that points to a review of a similar product but the instructions were for a Matrix. Has anyone tried this thing successfully on a 2005 GX470?

Mauser

I have found that a lot of the remotes sold on Amazon and ebay don't have the correct keytag for Lexus. The remotes come with a 4D-67 tp30 chip, but a 4D-67 tp29 chip is needed.

jordan04gx

For my 2004 Lexus GX470 I just successfully programmed 3 keys in a row.

I had 3 keys:

1. An existing master Key Fob (metal key with remote buttons)
2. An existing valet Key (metal key with no remote buttons)
3. A new aftermarket Key Fob (Ebay), recently cut to match Key #1 at locksmith

You must be prepared to program all 3 keys. As far as I can tell from my own experience, and from the terrible instructions, this device will clear all existing key registrations before beginning the new key programming sequence. This can be a good thing if your vehicle already had the maximum number of keys registered. As far as I can tell, the device does not give any indication that all existing keys will be unregistered.

Originally, I attempted to only add Keys #2 and #3. Which was successful. Only to find out the next morning that my main key (#1) was not registered any more. So I have updated my instructions to assume that all desired keys must be registered/program when you use the device.

1. No key in ignition
2. Insert Device (one beep)
3. Insert key to be programmed - turn to ON position
4. After a few seconds Device will beep 2,3,4 times (depending on generation of vehicle...mine was 3).
5. Security light will be on solid on dash, and you'll hear a few systems making noise (buzzing, moving) if you are in a quiet place.
6. After 20-30 seconds you will get 1 LONG BEEP.
7. Remove Key
8. Insert Next key and turn to ON position
9. Wait 10-20 seconds
10. Remove Key
11. REPEAT steps 8-10 for additional keys (I think 5 is the total allowed)

On the FINAL key (after waiting the 10-20 seconds) but BEFORE removing:

12. Rotate key rather quickly between ON and ACC (about 5 times) until the Security light on the dash turns OFF.
13. Rotate the key to START to test the key. Engine should start.
14. Repeat the test with the other keys to ensure that they work properly.

These steps will register 1-5 keys with your vehicle's security system using the FICBOX device.

For instructions on how to program the remote buttons for a new key fob (lock/unlock/panic). See the following:
http://www.keyfobprogram.com/2004-le...e-programming/

NEPAKevin

I picked up two photo cut keys form 1010keys on ebay for my 07 GX470 and used the FICBOX from amazon to program the chips and then followed the procedure linked in the above post to program the door locks. I didn't have to reprogram the existing key but did have to try a couple of times to get the second new key to register to work the locks. In another thread, someone suggested holding the two lock buttons longer than the 1.5 seconds so I held them for about three i.e. "work MFer, work MFer, work MFer: " and that seemed to do the trick.