Transponder key is a type of key which provides more layers of security to vehicles. Transponder keys embedded with coded electronic chip which is read by vehicles when the keys are turned by inserting into ignition. If transponder keys are broken/mismatched engine won’t start. Duplication and replacement of Transponder keys are done only by specific vehicle dealers and from certified locksmiths. Dealers and locksmiths perform reprogramming to recognize the new key code. UK locksmiths provides excellent services for transponder keys for reasonable rates.