A Car Seat Replacement Key is a Costly and Time Consuming Process
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Keys lost or stolen
Key replacements can be costly and time-consuming procedure. In addition to the cost of a new key, you might need to have the vehicle towable and the computer chip of your car repaired with the new key, which can be quite expensive.
seat car key replacement cost to save money and time is to make sure you don't lose your keys in the first place. Think about adding a brightly-colored or reflective keychain, or painting the bow in a hue that is distinctive. Keep a spare key to your seat in a secure place, just to be sure.
If you find the key you lost you can identify it by looking at the code that is stamped on the bow of the key. This can help you determine if it's the correct key for your car.
Transponder Chip Keys
The transponder key, also referred to as chip keys or key FOB (fob that controls your key) is one of the most popular kinds of car keys. They've been used for more than two decades and are designed to guard against theft by transmitting an encrypted message to your car when it's inserted into the ignition.
A transponder is actually a microchip embedded in the plastic cover of your car key. When the key is inserted into a key FOB ignition in your car, it sends a low-level radio signal the vehicle's Engine Control Unit (ECU). The ECU detects the unique serial number of the chip and responds accordingly. If the signal matches, the engine will start.
Transponder chips aren't foolproof, but they are a great way of reducing auto thefts. The idea behind these kinds of car keys is actually quite old-fashioned, dating to World War 2 era military planes that employed coded messaging to distinguish them from enemy planes.
A locksmith can create a duplicate transponder for you in case you're locked out and need a replacement. This process is a little more complicated than simply rekeying your standard key, however, because the chip inside your new key needs to be compatible with the car's receiver system. For this reason, getting the same transponder key again from a dealer is usually more expensive.

Keys Laser Cut Keys
Laser cut car keys are made of wood with grooves on both sides, unlike mechanically cut keys, which can only be turned one way. This makes them more difficult to duplicate and can only be inserted into the lock or ignition on either side. These are also known as sidewinder or transponder keys. They provide more security in the case of theft and are an upgrade from the standard chip key/transponder key.
To create a laser key the locksmith has to recognize the cuts from the key fob that is already in place to determine the type of blank that needs to be used. Then, he must set up the key cutting machine to cut the key according to the original cuts. This requires a more advanced key cutting machine than the traditional duplicators based on wheels that are sold in hardware stores.
They are more expensive, however they provide greater security for your car. This is because a laser key cannot be duplicated by the same equipment that is used to create regular edge-cut keys. This stops the practice of "key jumping," where a key is programmed to work on various vehicles and permits it to turn the lock and even start the engine. The keys can only be retrieved by an expert locksmith or a dealership.