04-10 Lexus SC430 Remote Programming Instructions

Program remote only when key added or replaced, system malfunction.

How to program 2004

  • 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. 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. Five times to erase all registered codes.
  • System should now lock and unlock vehicle. Once, twice of rive 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 together twice. 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. A maximum of 4 key remote transmitters can be programmed




How to Program 2005->

  • 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 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
  • Within 40 seconds – 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 an unlock vehicle once, twice or five times depending which mode has been selected. Once to four times slowly, to indicate number of remote transmitters registered.
  • Within 40 seconds – Press and hold LOCK and UNLOCK button simultaneously for 1.5 seconds
  • Within 5 seconds – Press and releases LOCK or UNLOCK 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. A maximum of 4 key remote transmitters can be programmed.