What is a Transponder Key? Transponder keys   are also known as transponder “chip” keys. These ignition keys for your vehicle make getting in and out of your car very easy by allowing you to unlock your doors without putting the key in the lock, activating and deactivating your alarm remotely, opening the trunk, and some can even start the car remotely. Basically, it’s like the TV remote for your car! The transponder chip inside the key sends a unique signal to your car’s computer, which contains a specific frequency aligned to your car. As the signal is received, the mechanical part of the key releases your steering lock so you can activate the ignition and drive. Today, transponder keys are standard, and are also considered superior to regular keys. Cars are harder to steal, and though transponder keys are more expensive they are considered well worth it. By offering peace of mind for the additional safety included, a transponder key is helpful overall. However, there are ...