2006 TOYOTA PRIUS Non/smart key will need to be programmed to your vehicle before it will work for you. Programming can only be done at an automotive locksmith shop or your local Toyota dealership, where they will also be able to cut the emergency key blade to match your original. There are no onboard programming instructions for 2006 TOYOTA PRIUS smart keys. They can only be programmed using special diagnostic equipment. This smart key comes with battery and is tested for functionality before sending. Please make sure that your remote key has a black logo on the back cover.