2007 Subaru Impreza Owner's Manual - Page 88

2-4 Keys and doors thieves by indicating that the vehicle is equipped with an immobilizer system. It begins flashing (approximately once every 3 seconds) approximately 60 seconds after the ignition switch is turned from the "ON" position to the "Acc" or "LOCK" position or immediately after the key is pulled out. If the security indicator light does not flash, the immobilizer system may be faulty. If this occurs, contact your SUBARU dealer as soon as possible. In case an unauthorized key is used (e.g. an imitation key), the security indicator light comes on. & Key replacement Your key number plate and security ID plate will be required if you ever need a replacement key made. Any new key must be registered for use with your vehicle's immobilizer system before it can be used. Up to four keys can be registered for use with one vehicle. For security, all the keys registered with your vehicle's immobilizer system will have their ID codes erased and reregistered when a new key is made. Therefore, all of your vehicle's keys must be presented when a new key is registered. Any key that is not re-registered when a new key is made cannot be used after the other keys are re-registered. For information on replacement keys and on the registration of keys with your immobilizer system, contact your SUBARU dealer. Door locks & Locking and unlocking from the outside NOTE Even if the security indicator light flashes irregularly or its fuse blows (the light does not flash if its fuse is blown), the immobilizer system will function normally. To lock the driver's door from the outside with the key, turn the key toward the rear. To unlock the door, turn the key toward the front. Pull the outside door handle to open an unlocked door. NOTE A vehicle that is equipped with the remote engine start system as a dealer option can register up to three keys for use with one vehicle.