MASTER KEY AND REMOTE PROGRAMMING INSTRUCTIONS
The key must be laser cut by a qualified auto locksmith or dealer before programming. Please familiarize yourself with the procedure before starting. These instructions will only work if you have an existing MASTER key if you have a grey valet key this procedure WILL NOT work and you must have this key cut and programmed by a locksmith! The panic and trunk features must be pressed and held down for 3 seconds in order to function.
2002 - 2003 Lexus ES300
2001 - 2005 Lexus GS430
1998 - 2000 Lexus GS400
1998 - 2005 Lexus GS300
2001 - 2005 Lexus IS300
1998 - 2000 Lexus LS400
Key Programming:
1. Insert an already programmed master key into the ignition. Do not turn.
2. Press and release the gas pedal 5 times.
3. Press and release the brake pedal 6 times.
4. Remove the key from the ignition.
5. Insert the new key you want to program into the ignition.
6. Press and release the gas pedal one time.
7. Wait 1 minute. The security light will be blinking for this one minute. When it stops blinking
your key is programmed. To end programming step on the brake one time.
Note: Look for your security light. This light will guide you during the programming procedure.
The security light will go off at Step 1. It will remain off until Step 6. The security light will be
come on and start blink after Step 6 until the key is programmed. If the security light comes on
after Step 4 STOP the procedure and start over again.
If you perform this procedure too slowly your car will not go into programming mode. If you can
not get your car to go into programming mode make sure you are using a master key and not a
valet key. If you have a master key then you will probably need to perform this procedure more
quickly.
2002 - 2003 Lexus ES300
Remote Programming:
1. Begin with the key out of the ignition.
2. OPEN and UNLOCK the DRIVER'S side door. CLOSE all other doors including the trunk.
3. Within 5 seconds INSERT the key into the ignition and PULL it out TWICE.
4. CLOSE then OPEN the DRIVER's side door TWICE.
5. Insert key INTO the ignition then REMOVE it.
6. CLOSE then OPEN the DRIVER's side door TWICE.
7. Insert the key INTO the ignition and LEAVE it in ignition.
8. CLOSE the DRIVER's side door.
9. Switch the ignition to ON then OFF.
10. REMOVE the key from ignition.
11. The door locks will now cycle to confirm the vehicle has successfully entered programming
mode.
12. PUSH and HOLD the LOCK and UNLOCK button for 1.5 seconds on the first remote being
programmed. As soon as you let go PUSH the LOCK button and HOLD it for 2 seconds.
13. The door locks will cycle confirming successful programming. If you have additional remotes
to program repeat step 12 if you have no additional remotes proceed to step 14.
14. OPEN the DRIVER'S side door. Programming is now complete.
2001 - 2005 Lexus GS430
1998 - 2000 Lexus GS400
1998 - 2005 Lexus GS300
2001 - 2005 Lexus IS300
1998 - 2000 Lexus LS400
Remote Programming:
1. Begin with the key out of the ignition.
2. OPEN and UNLOCK the DRIVER'S side door. CLOSE all other doors including the trunk.
3. INSERT the key into the ignition and PULL it out.
4. Locate the driver's side door lock/unlock switch.
5. LOCK and UNLOCK the switch 5 times. Try to pace yourself to 1 second for each LOCK and UNLOCK
sequence. (hint: LOCK and UNLOCK = 1 time in 1 second)
6. CLOSE and OPEN the DRIVER'S side door.
7. LOCK and UNLOCK the switch 5 times. Try to pace yourself to 1 second for each LOCK and UNLOCK
sequence. You will have 50 seconds to complete steps 7-10 (hint: LOCK and UNLOCK = 1 time in 1
second)
8. INSERT the KEY into the ignition.
9. Switch the ignition to ON then OFF TWICE (on is just shy of starting the car)
10. REMOVE the key from the ignition.
11. The door locks will cycle (lock and unlock) to confirm successful entry into programming mode.
12. PUSH and RELEASE the LOCK and UNLOCK button on the first remote you are programming at the
SAME TIME (does not matter which remote you program first)
13. As soon as you let go PUSH and HOLD the lock button on the same remote for 2 seconds. The door
locks will cycle to confirm successful programming of the remote.
14. Repeat steps 12 and 13 for each additional remote you wish to program. If you have no additional
remotes to program proceed to step 15.
15. Close the DRIVER'S side door. Programming is now complete.
