Transponder keys are one of the best things to ever happen to modern car owners. These automotive keys help deter car theft by making it virtually impossible to start a car by hot wiring it. 

A transponder key comes with an electronic microchip built inside it. The microchip is located in the head of the key. When the insert key is turned in the ignition system, it sends out a unique digital code to the vehicle's computer. If the code matches that stored in the computer's memory, the vehicle will start. If there is no match, the vehicle won't start.

If your car requires a transponder key to start, here are some important things to know about transponder keys.

Transponder Keys Need To Be Cut Right

Every transponder key needs to be properly programmed in order to start a car successfully. However, not every programmed key will work. If a key has not been cut to fit into the ignition of a car, programming will not do much to start the vehicle. Transponder key programming must be done on a properly cut car key for the transponder key to work in the ignition.

Don't fret if you have misplaced or lost your car keys and have no key to duplicate. An automotive locksmith can still cut you a new key. They only need to know your vehicle identification number (VIN) to cut you an exact match.

A New Transponder Key Renders The Old One Inoperative

When a new transponder key is cut and programmed for your car, the old one is automatically rendered useless. This is because your vehicle's computer will recognize codes from the new key only and not the old one.

This helps to improve the security of your car, as you don't have to worry about someone driving off in the vehicle while using your old or lost keys.

Transponder Key Programming Is A Specialized Auto Locksmith Service

While any qualified auto locksmith can cut a new key for your car, few have the specialized equipment and skills required to program it. This means not all locksmiths can help when there is something wrong with your car transponder key.

It is a good idea to find a trusted auto locksmith offering transponder key programming services before needing one. This way, you can get back on the road as soon as possible in case your chip key gets damaged or lost.