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How Much Does a Seat Replacement Key Cost? The loss of your car's key is an unpleasant experience. The replacement keys from dealers can be costly. UK Auto Locksmith has specialised technicians who are familiar with the Seat models and can assist you at a reasonable cost. We've all experienced that embarrassing moment in which we return to the car to unbuckle an infant's car seat, only to fail. It's embarrassing and annoying, but it happens to the very best of us. Keys Keys to your car are lost. It's a common problem and can be a problem to handle however, getting a replacement key from the dealer can be expensive. UK Auto Locksmiths will offer you a cheaper alternative and use the most modern equipment and software to help. All you require is an VIN number and proof of ownership to permit them to perform the task. They'll also need to be aware of the type of key that you require. They can supply remotes, flip keys and even Fobs. They are also in a position to assist you with the programming of 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 As car immobilisers became more popular in the late nineties the number of car thefts began drop, but thieves are always seeking ways to circumvent security systems. The initial immobilisers were avoided by using a scanner to find the code on the chip and then copying it onto the blank key. However, technology has evolved and thieves have to devise new ways to take advantage of security systems. Luckily, the majority of immobilisers we supply and install are Thatcham Cat 2 certified. The Thatcham Research organisation has tested and certified them. This not-for-profit organisation is the grading and certification system for the automotive aftermarket alarm and security devices, which includes car immobilisers. When the Thatcham approved system is activated it will send a signal coded to the Engine Management System (EMS) of the vehicle that prevents the motor from starting without the correct key. This means that if the vehicle has been “hot wired” after entry and the engine is cut out within 30 seconds, making it impossible to start. As with any computer it is possible that the immobiliser will develop problems. Sometimes, the internal battery or key fob might need to be replaced. It is best to hire experts handle the job to make sure that everything is installed correctly and functions. Transponders A transponder is a piece of equipment that sends back an identification signal upon being questioned. This allows for the separation between aircrafts and signals an aircraft to air traffic controllers when it is using an active radar system. The information that is transmitted by the transponder can differ based on the type of system that is used. Transponders are also present in spacecraft and satellites to communicate with Earth systems, such as cell phone networks and other networks of communication. seat keys receive incoming signals at a variety of frequencies, and then retransmit them at a different frequency, similar to how repeaters operate in terrestrial cell phone networks. Often sophisticated passive transponders can be found on aircraft. They monitor flight status and provide information about navigation like the aircraft's position, speed and altitude. Transponders provide information that air traffic controllers can use to manage flight paths, and ensure security. In addition to transponders for aircraft some personal keys include a transponder chip. These chips don't require batteries and are passive. This allows the ECU to read the signal of the transponder whenever it is installed in the ignition lock. Most aircrafts have a switch on the flight deck that permits pilots to turn on or off their transponders. They can also choose an “ident” mode that allows the transponder to broadcast its unique squawk code, which helps it stand out on an air traffic control screen.