hi mate
try this first
TO LOCK CAR open drivers side door and remove key from ignition switch insert key to be programmed into ignition switch then remove it Within 40 seconds 1. Press lock and unlock on the vehicle door control switch at 1 second intervals 5 times 2. Close and reopen drivers door Within 40 seconds 1. Press lock and unlock on the vehicle door control switch at 1 second intervals 5 times 2. Insert key into ignition switch 3.Switch ignition ON and OFF once to program new key code whilst retaining the original codes or twice to program a new key code whilst erasing the original codes. 4. Remove key from ignition switch. System should now lock and unlock car once or twice depending which mode has been selected Within 40 seconds 1.Simultaneously press and hold key lock and unlock buttons for a maximum of 1.5 seconds. 2.Within 3 seconds press any key button for a minimum of 1 second. System should now lock and unlock car once Note:if system locks and unlocks car twice,progranmming procedure has not been completed.Repeat programming procedure and get the car start TO PROGRAMME IMMOBILIZER Insert programmed black key into ignition switch Within 15 seconds 1. Press and release accelerator pedal 5 times Within 20 seconds 1. Press and release brake pedal 6 times 2. Remove black key Within 10 seconds Insert black key to be programmed into ignition switch Within 10 seconds Press and release accelerator pedal once. Immobilizer warning light will flash After 1 minute Immobilizer warning light will extinquish. To exit programming mode:remove ignition key and press brake pedal atleast once with 10 seconds or wait 10 seconds
if not i think you have the wrong key/trasmitter?
it should be like this
http://www.ebay.co.uk/itm/GENUINE-LEXUS-IS200-GS300-LS400-RX300-ETC-3-BUTTON-REMOTE-ALARM-UNCUT-KEY-FOB-/331508619726?pt=LH_DefaultDomain_3&hash=item4d2f7419ce#ht_515wt_1222
Wahid