A 2011 Jeep Grand Cherokee smart key(PROX) will need to be programmed to your vehicle before it will work for you. Programming can only be done at a local automotive locksmith or dealership, where they will also be able to cut the emergency key blade to match your original. There are no onboard programming instructions for 2011 Jeep Grand Cherokee smart keys. They can only be programmed using special diagnostic equipment. This Remote key comes with New battery installed and is tested for functionality before sending.