I am a new 2001 IS 300 owner and of coarse I need a new key does the transponder programming procedure that works for the rx 300 work for the IS 300.
thanks very much

 

The programming procedures are the same. It's in 2 parts, you have to program the ECM and then power dr locks. Do a search.

 

I found this in a search for you. Maybe it will help.

1. Driver's door open and unlocked, all other doors closed and locked.
2. Insert YOUR key in ignition, DO NOT TURN, remove key.
3. Using the lock/unlock button ON THE DRIVERS DOOR, slowly press lock and unlock 5 times (count the lock 5 times and unlock 5 times).
4. Shut door.
5. Open door.
6. Using the lock/unlock button ON THE DRIVERS DOOR, slowly press lock and unlock 5 times (count the lock 5 times and unlock 5 times).
7. With the door open insert your key into the ignition, turn to on position (DON'T START), wait 5 seconds. Turn off and remove key.
8. Locks should cycle once (Car will lock and then unlock once). If they don't cycle or they cycle more than once, do steps 1-7 over.
9. Now using the remote, push lock button, hold for one second, release. The locks should cycle once. If not, start over and go slower.
10. Close the door. Open the door. Press the lock button on the remote. The locks should cycle. Close the door. Press the lock button on the remote, the doors should lock. Press again and the doors should unlock.

 

thanks!! I have the valet key without the door locks
thanks
g

 

awesome! my instinct tells me that i need those instructions sometime very soon

 

this procedure is to activate the door locks and the trunk... Correct ??? I don't have the key with those functions. I need the procedure to use the key to start the vehicle.
thanks amy and rominl for your reply and to those who can assist me
G

 

I'm not sure since I have never had to do this myself. *knocks on wood* And especially since you don't have the key with the locks on it I wouldn't know what to tell you except to go to your dealer or something to see if they can help you. Why didn't you get the regular key with locks on it? You said you just got the valet key?

 

I am sorry I must be confusing you I do have the master I bought a uncut valet once it is cut I will have to program it so I can start the car
sorry if I am being confusing.
g

 

OH! ok i gotcha.

 

Keep searching. I don't have it off the top of my head, but it involves stepping on the brakes & gas a few times. Did it myself a while ago, it's very easy.

 

You're in good shape since you will need the master key to program it.

 

after doing a search i found wha Iwas looking for, thanks so much for the people inthis forum. the dealer wanted to charge me 45 dollars for something I did in ten minutes,
thanks again

 

Gmackmoney,

So you were able to program a new transponder key to start your ignition?!? Please help, Ive been trying to program a new master key. I had the same problems. The instructions i got dont seem to work. Please help!

mike

 

do a search and follow the directions that have you press on the brakes like 6 times and and gas pedal five times, someone who has a rx300 posted it. it's the same pricedure for most of the lexus's. it took me a couple of times for it to work. if you can't find it let me know I will post the directions I followed.
good luck.G

 

where should i buy a new key? The transponder key with the unlock/lock/trunk buttons on it? I only have one lft and i really need another. Sorry, im a newb, i know nothing! lol