Can't find button under dash to reset/reprogram keyless entry

immobilizer control module under the dash.some vechicles if you replace key remote dealership has to reprogram remotes using diagnostic equipment.try this techinique to synchronize remote transmitter. stand within 5 feet from vechicle .press transmitter lock and unlock buttons simultaneously for 7 seconds . system will lock and unlock doors confirming synchronization. if this dont help dealership has to reprogram remotes.

have you tried to pull the fuse from the alarm. is the alarm a factory or after market. if it is a after market alarm look under the dash on the drivers side there will be the wires to the alarm just pull the fuse. the other thing to do is disconnect the battery every nite

Turn on the keys to 'Acc'. If your Legacy has a CD player, press down and hold on the 'disp' button for one seconds; if not, omit this step.
Push down and hold the 'disp' and 'H' buttons; this helps you to adjust the hour entry. The hours will be incremented by one hour; leave the button when the desired hour entry is set.
Push down and hold the 'disp' and 'M' buttons to adjust the minute entry. Hold down till the desired minutes entry is set and release it.
Turn off the keys to save the set time.

wires must have been trapped,shorted when engine was removed, check loom for damage

Programming Electronic Door Lock Control System NOTE: The electronic door lock control processor (14B001) erases all previous keyless entry remote transmitter (15K601) from memory when the keyless entry remote transmitters are programmed or reprogrammed. The electronic door lock control processor can store up to four keyless entry remote transmitters in memory.

• To program (or reprogram) keyless entry remote transmitter into the electronic door lock control processor, perform the following steps:

1. Turn ignition switch to the RUN position and momentarily short the two terminals of the program connector taped to the wire assembly and located behind the glove compartment. All doors should lock and then unlock. Remove shorting pin.
   

1. Press any button on keyless entry remote transmitter. All doors should lock and then unlock to verify the keyless entry remote transmitter has been programmed. If door locks do not respond, press button again (up to three times maximum with the same keyless entry remote transmitter).
   

1. Repeat the above step to program additional keyless entry remote transmitters into the electronic door lock control processor (up to four keyless entry remote transmitters maximum).
   

1. Turn ignition switch OFF. All doors should lock and then unlock.
   

1. Check operation.
   

disconnect battery for 10 minutes.

subaru have 2 security codes one for the key/ignition switch(magnetic code)and one for the remote(rolling electronic) the car is reccognising the key but not the remotes signal to the central locking.
try locking the car with the key then pressing and the holding the unlock button on the remote for 30 secs, see if the car unlocks.if not unlock the car etc....or... put key in door and hold over for 30 secs..etc

its not to hard, remove panel under dash on right side. unplug connector, remove a few screws and bingo blower motor drops right out.hope this helps.

Under your dash by steering column,by your left knee, is a small 4" x4" box that has a small wire attached. On the end of the wire is a small button. Push the button with the ignition in the on position. It will reset the alarm system. That will stop your lights from flashing. Have a great day.

TRY PUTTING IT IN IGNITION TURN IT SO DASH LIGHTS UP THEN PRESS THE FOB WORKED ON MY CAR BUT MINE WAS A ASTRA