2005 Subaru Legacy Owner's Manual - Page 145

Keys and doors lamp will not flash. In this event, perform the whole procedure again beginning with part 1. 4. Open and close the door once within 15 seconds. the power door lock knob to the "LOCK" side the same number of times as the leftmost digit of the transmitter code. For example, press the lock knob eight times if the leftmost digit of the code is 8. NOTE " When part 4 of the procedure is completed, an electronic tone will sound for 30 seconds. " If you do not perform the operations in part 4 within 15 seconds, an error will occur and the electronic tone will not sound. In this event, perform the registration steps again beginning with part 3 of the procedure. NOTE " The electronic tone will stop sounding when you start entering the number. " If you do not start entering the number using the lock knob before the electronic tone stops sounding, an error will occur. In this event, perform the registration steps again beginning with part 3 of the procedure. " If the interval between one push of the knob and the next exceeds five seconds, an error will occur. In this event, perform the procedure again beginning with part 4. If an error occurs six times, perform the procedure again starting with part 3. 5. Before the electronic tone stops sounding, press 2-20 LO C K UB2537CA