A transponder key is newer technology for safeguarding against auto theft. So, how do they work and how do you care for them? Below is a quick guide to understanding how the handy device functions and how to replace or reprogram one if you need to.

What Are Transponder Keys & How Do They Work?

A transponder key ensures only the owner can start the car. Transponder keys contain a chip—called a transponder—in the plastic key bow, which sends and receives messages to the vehicle’s system. When you place the key into the ignition and switch it to “on” or “run,” the lock will emit an specific electromagnetic field. The system then recognizes the key as belonging to that specific vehicle and powers up the automobile. If someone attempts to use another key, the engine won’t start, since it’s only programmed to work for a specific transponder.

How Do You Replace or Reprogram One?

Many people mistakenly believe transponder chips can only be programmed at the vehicle manufacturer’s factory or dealership. In reality, there are many reliable locksmiths that possess the expertise and equipment to work on these keys. Meanwhile, dealerships and factories tend to charge much more for identical services. 

Whether you lost your transponder key or would like a backup, a professional can replace or reprogram your transponder. However, due to the potential security concerns involved, always look for a certified locksmith who specializes in transponder keys.

Also, when it comes to reprogramming transponder keys, some websites spread misinformation about DIY tactics. While you may be tempted to follow a YouTube™ tutorial’s advice, you risk damaging your key and spending additional money to repair it.

If you’re interested in replacing or reprogramming your transponder key, the certified team at Ability Lock & Key in Forsyth County, NC, can help. Call the auto locksmiths today at (336) 407-1586 or visit their website for more information on the range of services they provide.