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How Much Does a Seat Replacement Key Cost? Losing your car key can be an extremely frustrating experience. Getting a replacement key through the dealer could be expensive as well. UK Auto Locksmith has specialised technicians who are familiar with the Seat models and are able to assist customers at a cost-effective price. We've all had that embarrassing moment where we reach back into the car to unbuckle an infant's chair, only to fail. It's embarrassing and frustrating. occurs to all. Keys The loss of a car key is a common issue and can be a major problem. However, getting a new key from a dealer could be expensive. UK Auto Locksmiths can offer a much cheaper alternative, and they will have the most up-to-date software and equipment to help you out. To enable them to carry out the job, you'll only require an VIN and proof of ownership. The other information they need is the type of key you need. They can provide flip keys, remotes and even Fobs. They are also equipped to assist you in 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 Since car immobilisers became popular in the last decade, car thefts began to drop, but thieves are smart and always seeking ways to circumvent security systems. The first immobilisers could be defeated by scanning the code on the chip and then copying it onto the blank key. However, technology has evolved and thieves have had to come up new methods to get around security systems. Luckily, seat leon car key of immobilisers that we supply and fit are Thatcham Cat 2 approved. The Thatcham Research organisation has tested and certified them. This not-for-profit organisation is the grading and certification system for aftermarket automotive alarms 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 running without the proper key. If the vehicle is “hot-wired” after entering, it will stop the engine within 30 seconds and make it impossible for it to start. As with any computer that is used, the immobiliser could be prone to problems. Sometimes, the internal battery or key fob will require replacement. The best option is to always seek out an expert to complete the work, as this will ensure that everything is fitted correctly and that it works. Transponders A transponder sends an identifying signal back when it is being probed. This helps maintain separation between aircrafts and also identifies an aircraft to air traffic controllers when it is using an active radar system. The information sent back by the transponder is different based on the type of system used. Transponders are also present on spacecrafts and satellites, allowing them to communicate with Earth systems, such as cell phone networks and other networks of communication. These devices receive signals at different frequencies, and then transmit the signals using a different spectrum like repeaters in cell phone networks operate. The most sophisticated passive transponders are typically found on aircrafts. They monitor the status of flight and provide information about navigation such as the aircraft's location along with speed and altitude. Air traffic controllers rely on the information from these transponders control the flight path and ensure safety. In addition to aircraft transponders, many personal keys now include a transponder chip. These chips don't require batteries, and are therefore passive. This lets the ECU to read the signal from the transponder when it is placed in the ignition lock. The flight deck of most airplanes contains a switch that pilots can activate to turn their transponders on or off. They can also choose an “ident” mode that allows the transponder's unique squawk code and help it stand out on a busy air traffic control screens.