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Mazda 2 Key Replacement Mazda is an auto manufacturer that offers a variety of models. The Mazda key features a transponder chip inside the plastic head of the key which is programmed into your vehicle. Dealers are often able to make you a duplicate key however, you may have to program it. You can also get a locksmith to do it. Keyless Entry System You may wonder if you have locked your car after you park it. With keyless entry, you do not have to worry as the car will automatically lock after you walk some distance from it. Usually, you'll have to press the button on the remote key fob to activate this feature, however certain systems allow you to activate it simply by walking around the car. Most systems work by emitting radio signals the key fob can recognize. The key fob then transmits its own signal back to the car, signalling the car's computer onboard know that the user is at the appropriate distance for the key to unlock the doors. Certain systems are bi-directional, which means they transmit status information to the driver via a small display in the car. This includes the state of the battery, window status, diagnostic data, and more. It is important to read through the instruction manual for every system, as they're all different and have their own wiring specifications. Also, be sure to disconnect the car's batteries prior to making any changes to electrical connections. Make G28 Car Keys Solutions to use high-quality batteries that are rated according to the amount of power required by the system. If you use the wrong battery could damage the electronic components of your car. It's also important to keep batteries in a space that is free of moisture and heat. Transponder Chip A transponder is also known as a “chip-key,” is a feature that stops theft from the ignition of your car. It is a safer method to protect your car from theft, as it ensures only your key can start your vehicle. When you insert a key that has the transponder chip in your ignition, it sends an electronic signal to a small antenna ring in your car's engine. The engine control unit (ECU) which controls the car and is able to confirm that the signal coded came from your original keys. If the ECU does not receive this message the car will remain immobilized and locked. It's similar to the way military planes utilize codes to identify themselves on radar. This is the reason why the transponder chip was created for cars, and it has helped in reducing theft of vehicles in the United States. Transponders are a tiny microchip embedded into the head portion of your car keys. It's also known as a chip key and is utilized in all cars that have been manufactured in the last 15 years. The name of the key is derived from the microchip built into the plastic head. Transponder keys are more difficult to duplicate than keys made of flat metal that aren't equipped with any technology. A locksmith will need to make use of specialized equipment to duplicate an existing transponder for your vehicle. Remote Key Fob A key fob, or remote, is a tiny device which opens your car's doors and, in some cases, starts it remotely. It also comes with an embedded security chip or transponder. Most fobs come with multiple buttons that perform various functions, ranging from locking your doors to opening your trunk and starting your vehicle. Fobs are usually attached to your keychain. They come in different shapes and sizes. Some older key fobs are able to be programmed by the user, however most require locksmith or dealership programming using a specific computer program. The programs are different for different types, brands and years of automobiles. The key fob transmits its unique digital identification code to the computer onboard of the car when it is programmed. The computer stores this code, which makes it impossible to open the car's door with a different fob. Some of the latest key fobs have the ability to open your car's windows. This is especially useful if you've parked your vehicle in a tight space. It's also useful in the event that you want to cool your car on an extremely hot day without the need to leave. You can also use a fob in order to activate the panic button on certain cars, which emits an alarming sound that frightens away burglaries. It's a good idea keep your key fob near your bedside to prevent home burglaries as to help prevent burglaries in your home, suggests Consumer Reports. Door Locks Door locks must comply with the fire and building codes, in addition to specific security requirements for industries or customers. These requirements can include accessibility for people with disabilities, security during an earthquake blast, blast resistance, retraction of deadbolt torque, and durability of locks. A door lock cylinder is made up of a steel tube that holds bolts. The bolt extends from the cylinder to secure the door. It also connects to a set of pins that are spring-loaded to keep the cylinder from turning. When a key is inserted into the lock, the notches on the key make the pins rise to the height that is required to place them within the housing of the cylinder. When all pins are located in the correct locations they form what's called a shearline. It stops the bolt and cylinder from rotating, locking the door. To reset the autolock, hold the lock and unlock buttons on the fob of the key for approximately 60 seconds. This resets the sensor, and allows the doors, lids for fuel-filler and the liftgate to lock automatically when the ignition switch is turned to the off position. The settings for the automatic lock/unlock feature can be changed by referring to the Settings section of the Mazda Connect Owner's Manual. The hazard warning light and horn will flash to verify that the auto locking function is activated.