2002 Subaru Impreza Owner's Manual - Page 107

Keys and doors 4. Place the ignition key into the ignition switch and cycle the switch from LOCK to ON ten times within 15 seconds. Be sure to stop at the LOCK position. The horn will sound once to indicate that you are in the transmitter programming mode. NOTE You must finish the next step (opening the driver's door) within 45 seconds of starting this procedures. To program the transmitters: 1) Press any button. HB1000DC 3. Press and release any button on the transmitter that you wish to program into the system. The horn will sound two times to indicate that the transmitter has been programmed. Any additional transmitters can also be programmed at this time. Repeat steps 1 through 3 for an additional transmitter. HB1005BB 1. Open the driver's door. 2. Close the driver's door. To exit the programming mode: 1. After all of your transmitters are programmed, remove the key from the ignition switch. The horn will sound three times to indicate that the system has exited the programming mode. 2. Make sure that the keyless entry system properly - CONTINUED - 2-11