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How Much Does a Seat Replacement Key Cost? Losing your car key is an unpleasant experience. Getting a replacement car key from the dealer can be expensive too. UK Auto Locksmith has specialised technicians that know the Seat models and are able to assist customers at a cost-effective price. We've all been through that embarrassing moment where we return to the car to remove the infant's seat only to fail. It's embarrassing, and even frustrating, but it happens to the best of us. Keys Lost car keys are a common problem and can be a major hassle to resolve, but getting an exchange key from a dealer can be expensive. UK Auto Locksmiths can offer an affordable alternative and they will have the most up-to-date software and equipment to help you out. To permit them to complete the task, you will only need a VIN and evidence of ownership. They'll also have to know the type of key that you require. They can provide remotes, flip keys and even Fobs. They can also assist you to programme any new keys. Remotes Most Seat drivers keep a spare remote in the house or garage, but when they lose it getting replacement keys from a dealer is expensive and time consuming. This is because most dealers will programme the key using the car's computer which will need to be reset. However, many people buy second-hand keys off the internet that are not programmed to their car. This can be a much cheaper alternative to going to the dealer. But, these key will not start the car because they will not have a transponder chip inside them. You can see the chip (yellow) in this picture below, it is a Dual Inline Package or DIP 18 pin chip. There are also a diode, transistor and resonator, all these parts make up the key's circuit. Immobilisers The number of car thefts started to decrease since car immobilisers became more popular in the late 1990s. However, thieves are always on the lookout for ways to get around security systems. The initial immobilisers were removed by using a scanner in order to find the chip's coding and then copying it onto the blank key. But technology has improved and thieves have had to devise new ways to get around security systems. Fortunately, the majority of immobilisers we supply and install are Thatcham Cat 2 certified. This means they've been tested and certified by the Thatcham Research organisation. This non-profit organisation is responsible for the system of grading and approval of security and alarm devices, such as car immobilisers. When the Thatcham approved system is activated, it will send a signal coded to the Engine Management System (EMS) of the vehicle. This will stop the motor from running without the proper key. If the vehicle is “hot-wired” after entry it will stop the engine after 30 seconds and make it impossible for it to start. Like all computers it is possible that the immobiliser will develop problems. Sometimes, the internal battery or key fob will require replacement. It is recommended to hire a professional do the work, as they will ensure everything is installed correctly and is working. Transponders A transponder is an instrument that transmits an identifying signal upon being questioned. This signals the aircraft's location to air traffic control when it is on a radar system, and helps maintain separation between airplanes. seat key that the transponder sends back varies according to the type of system. Transponders are also employed in satellites and space vehicles to communicate with Earth-based systems such as cell phone networks and other networks for communication. These devices receive signals on a range of frequencies, and then transmit signals on a different frequency, just like repeaters work in land-based cell phone networks. Often, sophisticated passive transponders can be found on aircraft. They are used to monitor the status of the flight and provide information about navigation, such as the aircraft's position speed, altitude, speed and route. Air traffic controllers use the information from these transponders control flight paths and ensure safety. In addition to aircraft transponders, a lot of personal keys have a small transponder. These chips do not require batteries and are passive. This allows the ECU to read the signal from the transponder once it is put into the ignition lock. A majority of aircrafts have a button on the flight deck, which allows pilots to turn on or off their transponders. They can also select a “ident” mode that allows the transponder to broadcast its unique squawk codes. This makes it stand out a busy air-traffic control screen.