01-03 Lexus LS430

NOTE: Please only program your remote if key added, replaced or system malfunction.

  • Driver’s door open, all other doors closed, key removed from ignition switch
  • Within 5 seconds – Insert and remove the key from the ignition switch twice
  • Within 40 seconds – Close and open driver’s door twice
  • Insert and remove teh key from the ignition switch
  • Within 40 seconds – Close and open driver’s door twice
  • Insert the key into the ignition switch and close the driver’s door
  • Switch ignition ON and OFF once to program a key remote transmitter code whilst retaining the original codes or twice to program a key remote transmitter code whilst erasing the original codes. Three times to check how many key remote transmitters are currently registered or five times to erase all registered codes.
  • Remove key from ignition switch – System should now lock and unlock vehicle once, twice or five times depending which mode has been selected. One to four times slowly, to indicate number of key remote transmitters registered
  • Within 40 seconds – Press and hold LOCK and UNLOCK buttons simultaneously for 1.5 seconds
  • Within 3 seconds – Press any button. System should now lock and unlock vehicle once to confirm registration, twice to indicate registration has failed
  • Within 40 seconds – Repeat button procedure to program remaining key remote transmitters

NOTE: To exit programming mode: Open driver’s door or insert ignition key. Also note that a maximum of 4 key remote transmitters can be programmed




If the above don’t work, try the following(SC430)

  • Driver’s door open, all other doors closed and locked, driver’s door glass open, key removed from ignition switch
  • Within 5 seconds – Insert and remove the key from the ignition switch twice
  • Close and open driver’s door twice
  • Insert and remove the key from the ignition switch
  • Close and open driver’s door twice
  • Insert the key into the ignition switch and close the driver’s door
  • Switch ignition ON and OFF once to program a key remote transmitter code whilst retaining the original codes or twice to program a key remote transmitter code whilst erasing the original codes. Three times to check how many key remote transmitters are currently registered or five times to erase all registered codes
  • System should now lock and unlock vehicle. Once, twice or five times depending which mode has been selected. One to four times slowly, to indicate number of key remote transmitters registered.
  • Within 40 seconds – Press and hold LOCK and UNLOCK key remote transmitter buttons simultaneously twice. System should now lock and unlock vehicle . Once to comfirm registration, twice to indicate registration has failed.
  • Within 40 seconds – Repeat button procedure to program remaining key remote transmitters

NOTE: To exit programming mode: Open driver’s door or insert ignition key. Also note that a maximum of 4 key remote transmitters can be programmed.