How to Get a Key Replacement Car keys replacement for cars With Chips (Www.Annunciogratis.Net) For Cars If you have one of those friends who can't seem to keep a car key in their pockets, you know the frustration that is associated with it. There are options to help. Visit an auto locksmith. But, this can take longer than going to a dealership. What is the most important thing? A key is a small, notched and grooved piece of metal that fits inside the lock and rotates its bolt when turned. It is used to open a lock or turn on a device, such as a wind-up alarm clock. The word also is used to describe something that grants access to or mastery over another thing as a key to happiness and success at work or school and a key to the mysteries of the universe. Some keys can be used to start the vehicle. Modern car models are fitted with transponders made of electronic technology that carry codes to prevent unauthorised starting.