hypervish

Credit card key can only open the door though.

This is what it says on the credit card for the key holder:

kalali

Thanks for all the responses. I must be missing something but what if some poor soul, possibly original owner, just loses their master key(s) and only have the so called valet key? Can't they just go to the dealer and "order" a new master key at a reasonable price, like a couple of hundred dollars? Makes little sense to me if that is not possible.

salimshah

There is nothing magical in the master key. It is the ECU which remembers the magnetic signature and tags it in memory as a master key. So the issue is the ECU in the RX has a locked signature For it to accept another key, you must provide the right credentials (use the previously registered master key).

Salim

Z07

I'm sorry. I did not realize that I was supposed to contact Lexus of Austin.

You just want me to call them, from Atlanta (900 miles away), to see if they can cut a new master for someone like me who has only a valet?

Do you have a contact there?

I will call them if you like. I won't drive 13 hours to see them, however.

Z07

I spoke with Allen at Lexus of Austin. He said they could not program a new master with only a valet key.
He transferred me to Rachael in their parts department and she said they could cut a key (just so I could have a spare that would open the locks) but will not ship any order for anything out of state.

Verify if you wish at 512-343-3444

salimshah

After dealing with posts on the net, I have learnt that it is best to let the interested parties speak for themselves. I did my share of digging and found the post where a member claimed that he was able to duplicate from Valet key from Lexus of Austin. It is really your decision (your need) to call their service dept. Once it is confirmed that they can do the seeding, you can overnight the valet etc. Here in CL we want some one to second the previous claim. I hope you will be able to confirm or refute.

Please feel free to PM me if I can be of assistance.

Salim

Eternity Key

Remember: cheap keys purchased online will continue to break... It's only a quick fix that will cost you more in the end! The Eternity Key is a BETTER replacement key with a lifetime warranty, and available at Lexus dealers exclusively. Made with military grade materials, the Eternity Key is stronger and lower cost than Lexus OEM keys, and you will never have to buy another key again. See website for list of dealers, or contact the dealer near you to ask for it by name. www.eternitykey.com

trekone

I have only one key ((without remote and L logo). This key can open doors and start engine.
So, Is it a transponder key? Can I use this key to program another new key?

Z07

1. Does it lock/unlock the glove box?

2. How long does the security light stay lit after you insert this key into the ignition?

Eternity Key

There is finally a solution to the Lexus broken key problem!! The best replacement on the market is called the Eternity Key. The others break and its costly to replace over and over. The Eternity Key is made of military grade materials, stronger than anything on the market, and has a lifetime warranty. Available at Lexus dealers or see www.eternitykey.com for dealers.

Enz

iTrader: (1)

So has anyone verified if you can program a replacement remote/master key if you no longer have a remote/master key and only have a valet and wallet/card key? Someone posted here that the wallet/card key is also a master key.

I was going to purchase the tech stream cable and see if I can get this to work.
Wifey lost the remote/master chip, I still have the shell and shank, valet, and wallet/card key.
Thx!

danski50

I did verify you can not program any key without having a master key. You can have a key cut to open the locks, and program the remote functions but not the security codes to start the car. Only an existing master will add the new master keys security codes to the system. If you think about it a little, you really don't want to be able to reprogram the security system, because if you can do it, someone (like a valet) could do it also.

So I solved my problem by purchasing two new master/remote keys, then was able to talk my local Lexus service department into reprogramming the computer for under $200.

Good luck, Dan

Enz

iTrader: (1)

JimsRX300 actually confirmed that the wallet/card key on his 03 is a master. I tried mine an 02 and it is also a master.

Z07

Exactly. All of them were master cuts. The last two years (at least) were also capable of starting the car when used in concert with their holders because the holders had RFID chips.

Pughnitive

Hey all, I'm slightly changing direction here. I've searched high and low to find out the right info for this, but no luck.

I'm looking for any and all information about what key chip works with the 99 RX300. I have a working master. My second remote transponder key (bought off ebay a couple years ago) does not work. Apparently it has a newer chip. 4D I think....A locksmith told me I need a 4C chip. But when I search with that info I don't find very much. I keep coming up with HYQ12BBT or NI4TMTX or both in the same listing. I should say that my master has no writing on it so I have no idea what the FCC ID is. Most of the auctions on ebay say to "Make sure you know your FCC ID." Anyone know what this number is?

I thought I found the perfect thread here, but gp1200x only says the remote transponder master key is #8501. This confuses me since I haven't seen that number associated with any of my other findings online.

Any help is much appreciated. Love it here at CL.