Brand: Bartolete Keys

This is about one uncut transponder key. The term transponder (short-for Transmitter-responder) means an automatic device that transmits a predetermined message in response to a predefined received signal. These car year, make and models have keys with transponders hidden inside the plastic head of the key. The owner of the car may not even be aware that the transponder is there because there are no buttons to press. When a key is inserted into the ignition lock cylinder and turned, the car's computer sends a radio signal to the transponder. Unless the transponder replies with a valid code, the computer will not allow the engine to be started. Transponder keys have no battery; they are energized by the radio signal itself. When you attempt to start the vehicle, the onboard computer sends out a signal that is picked up by the transponder in the key. The transponder then returns a unique signal to the vehicle's computer, giving it the ok for the vehicle to start and continue to run. This all happens in less than a second, and is completely transparent to the vehicle operator. It is a very effective system that does its job without the vehicle owner having to think about it, or modify his / her usual routine. This system was introduced to help reduce vehicle crime. If the transponder key is missing or faulty the car will not start.

• This is about one uncut transponder key blank with a black plastic head, and the chip included inside the key, tested and ready to be programmed. You can take this new key with your actual working key to a professional locksmith or the dealership to cut, program and duplicate it.
• It Fits 2005 2006 2007 2008 2009 2010 2011 2012 2013 Nissan Xterra
• Warning: If your car has a Proximity FOB, which means you do NOT need the key to start the vehicle, or you can start your car pushing a button or turning a knob, then this key is NOT for your car.