Every car owner wants to keep their vehicle as safe as possible. According to locksmiths, one of the best ways to protect your car from theft is to use a transponder key. Here’s how this popular type of key utilizes unique technology to provide maximum security. 

What’s a Transponder Car Key? 

A transponder car key features a small electronic chip called a transponder. The transponder is programmed with a unique serial number and contains a set of windings that consist of fine wire coiled around a tube. When you insert the key into your ignition, the transponder’s windings absorb electromagnetic energy from an induction coil near the ignition lock. The transponder then uses that energy to transmit a signal that contains its serial number to the engine control unit (ECU), which has been programmed with the same serial number. The ECU then detects the matching serial number, enabling the car to start when you turn the key.

What Are the Benefits?

Many people worry about thieves breaking into their cars and starting the engine without a key, or “hotwiring” them. While this is a valid concern for people with traditional keys, those with transponder keys don’t have to worry about it. That’s because the ECU will not start unless it receives a signal with the specific serial number from the transponder key. In other words, to start your car, someone would have to reprogram your entire ECU, an extremely complicated task that deters most thieves. Also, it’s impossible to duplicate a transponder key without the help of an experienced locksmith. Moreover, for added security, most cars programmed to transponder keys will sound an alarm when someone without the key tries to enter the vehicle.

It’s important to have spare keys to ensure you can always access your car and keep it safe. The team at Expert Lock and Key in Columbus, OH, uses secure technology to copy transponder keys at an affordable price. They also offer emergency locksmith services should you ever find yourself locked out of your vehicle. Learn more about the family-owned and -operated company online, and call (614) 329-3899 to speak with a friendly team member.