What is a Transponder Key?

Taken from the word transmitter and responder, transponder key technology is an anti theft device embedded in your car's ignition. If your car or truck is new or newer, chances are it uses a transponder key. This technology has been in place since 1996, and as of September 2007, all new cars sold in Canada must be equipped with a transponder system. It's the law.

A Transponder Key Explained

Transponder keys have a computer chip embedded in the head of the key. This chip is programmed with a code that is read by your car's computer. If your car does not read the correct code, your car will not start.

Therefore, your car cannot be hot-wired. This is an effective anti-theft device. This is why it is necessary that your key not only be cut properly, but programmed with special equipment used by Discount Auto Key

Without programming the key properly your engine will not start.