How to program Lexus IS250 (2008) remote key fob?

SOURCE: 06 mazda3 keyless remote programming instructions

It should be hit the unlock button 3 times, open and close the door 3 times, the locks will operate themselves twice. Hit the unlock button on the remote and it should program. you should try a remote from the dealer not from ebay.

SOURCE: The Lexus car remote key control model ES300

try this:

1. Start with key out of ignition, drivers door is open all others closed and
drivers door is unlocked.
2. Insert key into the ignition (DO NOT Turn) and Pull key out.
3. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Close, then open drivers door.
4. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Insert the key in the ignition cylinder.
C. Turn the ignition to ON (Do NOT Start) then back to OFF.
D. Remove the key from the ignition.
5. Press any button on remote for a minimum of 1 second.
System should now lock and unlock doors once.

6. Close and open drivers door.
7. Press any button on remote for a minimum of 1 second. System should now lock and
unlock doors. Once to confirm programming, twice to indicate programming failed.
8. Repeat steps 5, 6 and 7 for additional remotes.

Harvey N Tawatao

• 3854 Answers
• Posted on Dec 13, 2009

SOURCE: programing instructions for buick 2006 lacrossekeyless remote fob

Transmitter ProgrammingImportant: All transmitters which are to be recognized by the remote control door lock receiver (RCDLR) must be programmed in a single programming sequence. If the system is placed in program mode it will erase all previously programmed transmitters upon the receipt of the programming signal from the first transmitter. Up to 4 transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other vehicles that are in the keyless entry program mode. This prevents the programming of the transmitters to the incorrect vehicle.

1. Install a scan tool.
2. Use the scan tool in order to access programming: Vehicle Control System/Computer Integrating System/Module Setup/BCM/Program Key Fobs.
3. Press the START soft key on the scan tool. Important: The scan tool must stay connected until all of the transmitters are programmed.
   
4. Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of 5-10 seconds, the scan tool will indicate that the transmitter is programmed.
5. Repeat the previous step in order to program up to 4 transmitters.
6. Remove the scan tool.
7. Operate the transmitter functions in order to verify correct system operation.

SOURCE: trying to program remote key for 01 lexus rx300

1. original key ON 2. push gas to floor 5 times 3. push brake 6 times 4. take out key, put in NEW key DON'T TURN 5. Push gas to floor ONE TIME 6. Observe blinking security light until it stops blinking (about 1 minute) 7. DONE!