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Mazda Key Replacement – What You Need to Know Mazda key replacement typically requires the assistance of a professional locksmith. Preparing a few items will aid in the process. These include the information about their Mazda car as well as the year in which it was made and whether a transponder is inside the car or not. A CHOICE member recently had a Mazda key fob battery go out. She tried to replace it herself but couldn't get the cover off. Transponder Keys If you own a vehicle built in the last 20 years, it's highly likely that your key includes a transponder chips inside it. The chips are embedded within the head of the key and are designed for communicating with the computer system in your car when the key is put into the ignition. This lets the car verify that the key is indeed yours and disarms your vehicle's immobilizer to ensure that only you can start the engine. The chip in your car keys is powered by electromagnetic energy transferred from a small coil that is placed around the barrel of the key. When the chip receives the signal, it sends back a signal to the car. The computer then recognizes it's your key. This eliminates the possibility of key tampering, and hinders theft. If they require their keys duplicated, lots of customers go to local car dealerships. A professional locksmith can make copies of your transponder keys for a fraction of the cost than the dealer. Keep your spare transponder at a secure location, away your car. You can use this if your car keys require replacement or in the event that one is lost. If you have lost your transponder keys ensure that you note the code number on the plate that is attached to them. This information is required to program a new replacement key, if needed. Key Fobs A key fob can do more than unlock your car door. These handy devices are also useful for a variety of other purposes, such as rolling down your windows and calling your car to park and auto-parking it. Fobs communicate with the door latch via a radio system known as RFID. A RFID chip within the fob transmits an unique coded message that matches the code of the door latch's reader. When the signal is in sync, the door opens and grants access to the owner. It shouldn't take more than a couple of minutes to replace the battery. Most fobs have a removable cover that makes it simple to replace the battery. There are instructions in your owner's guide, or view online videos. Remove the code-containing plate from the key fob. Write down the code number and store it in a safe spot (not in your vehicle). If you ever lose your Mazda key fob you'll have the number that you can use to purchase another one from the dealer. You may be covered by your insurance but first you will need to pay the deductible. Key fobs can be purchased at your local hardware store, online or at the big box store however, the dealer will usually be the cheapest. Keyless Entry Keyless entry is a useful feature that lets you unlock your vehicle without having to touch the door handle. It utilizes radio signals to transmit information between the key fob and the car. The key fob can be used to lock the car and start it. This technology is becoming popular in all types of vehicles. Some automakers include it in the price of their cars, while other offer it as an option. The addition of this feature to your vehicle can be done at home. You'll need equipment and parts. Make sure you have an instruction manual that provides you with all the details. The manual will explain which wires to connect. You will also require a wire stripper or cutter and a soldering tool, as well as some electrical tape. After you have all the materials, you will have to unplug the battery from the vehicle before starting. Then, you can remove the cover that is under the steering column to gain access to all the wires. Label the wires you wish to connect. Make sure you use the wires that are indicated in the directions. Wrap the wires exposed in black electrical tape. If you decide to perform the work yourself, make sure to wear gloves to avoid any skin irritation. The code number of your key fob in a safe place. mazda 2 key fob can be useful if you need to program a new system. Ignition Cylinder The ignition cylinder is a mechanical part in which you insert your vehicle key to start the engine. It's attached to the ignition switch, which is an electrical component that locks the engine and reads anti-theft codes in the key to allow it to start. The ignition cylinder may wear out or even wash away in time and stop functioning correctly. This is usually the cause of trouble starting or powering up the vehicle. You might also notice that the key is stuck in the ignition. In the majority of instances, you'll need to replace the ignition cylinder, not just your car key. It can be a costly and complicated procedure, especially in cars with security systems that require that the ignition cylinder be replaced in order to function properly. The process of replacing an ignition cylinder can be difficult due to the fact that you'll need to remove the steering wheel and remove the lower section of the cover for access to the ignition lock. After you have removed the steering wheel and the cover, you'll need to disconnect the negative battery cable and isolate it in order to prevent accidental connections. When you've got all the necessary tools and equipment, the removal procedure should be fairly straightforward. After removing the cylinder you'll need it to be reinstalled by following the same method in reverse. Make sure you install it correctly to ensure that the retaining slot and tab are in alignment. You'll have to ensure that the tumblers are placed in the proper order.