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Carry a Spare Key For Your Mazda It's a risk to leave children in the car. They can cause the power windows to be opened or other controls to function or even cause the car to move. Contact a professional locksmith if you lose your Mazda key. These locksmiths can make spare keys for nearly any model of Mazda. If your key is damaged or isn't functioning properly, they can be cut and program an entirely new one. Keyless Remote Key Fob Many modern cars have key fobs that allow you to remotely open and lock the car's doors, as well as start the engine. As with all technologies keys can fail occasionally. Fortunately the majority of key fob issues are not complex or dangerous and can be fixed easily. One of the best ways to avoid these issues from catching you unaware is to always have a spare key. Key fobs require batteries which need to be replaced regularly. Certain fobs come with removable covers that allow you to swap out the battery, whereas others might require a special tool or dealer assistance. A new battery is expected to last about an entire year, regardless of the kind of fob you have. A spare battery can keep you from getting stuck on your way to work in Manhattan, White Plains or other places. The “flip key” fobs have the flip-out key that pops out when you press a button. The fob also has buttons to unlock the door, open the trunk and more. When not in use the key can be turned into a remote. Fobs and flip-keys can be damaged by a number of factors, including water and blunt force. Circuit board scratches and excessive heat are also possible. Transponder Chip Keys If you own a vehicle from the past two decades or so, the chances are that it requires the use of a transponder chip to start. mazda 6 key prevents car theft by using an encryption code that must be read by the car's computer. The key has a small microchip inside of it that is similar to the chips used in military aircraft. The chip communicates with the vehicle's onboard computer system using an oblique cylinder antenna. The key's copper wiring is attached to the microchip. It's this wire that sends signals to the onboard computer of the car when you turn on the ignition. The computer onboard responds by allowing the driver to start the engine. If the code is valid, it stays on and the car will not stop or lock itself. Some Mazda keys require programming (transponder keys and remote/fob keys). They are only programmed by an auto dealer or locksmith. Certain keys don't require programming. For instance, normal keys made of steel without a chip aren't required to be programmed. Keys with Keyless Entry System Mazda's Keyless Entry system allows you to unlock your door and start your car with only a single keyfob. The key fob comes with a built-in security chip which sends a signal the car's electronics that allows it to open the doors and ignition. Some models even have a keyless push button to start the engine. To keep the receiver and transmitter in sync, a 40-bit code is generated every time the keyfob button is pressed. The codes are generated by the receiver and transmitter using a pseudo-random generator so that they don't repeat. If you're experiencing issues with your Mazda Advanced Keyless Entry system It could be because the car's transmitter is not working properly or the battery inside the fob is not functioning properly. Bring the key fob to Holiday Mazda in Fond Du Lac, WI to have a technician look at it. If you have an extra electronic key, bring it along to use while you wait for your Mazda dealer to resolve the problem. Detach the plate from the key set, and keep it in a secure location (not in your car). This will give you the code number that's needed if you need to replace your keyfob. Keys with Remote Control The keyless remote control works with your Mazda, if you have the standard keyless entry. It can unlock the doors and begin the engine. It also works with a factory KEY LOCK. You'll need this remote professionally programmed when it is delivered by a local auto locksmith (click here for Locksmith Search). It's an aftermarket device so it does not come with an Mazda logo on the back. The key buttons control the door locks, liftgate lock, and the lid for the fuel-filler (if equipped) as well as the start of the engine of your vehicle and activate the theft-deterrent systems if your vehicle is equipped with this feature. If the system fails it will display hazard warning light and/or a warning tone will indicate the problem. For more information, contact your Mazda Authorized Dealer. It is important not to let children wander around unsupervised when they have access to the key. They might be able use the controls or operate the vehicle. Additionally, the battery of the key will need to be replaced every year, approximately. This is shown by the KEY warning indicator in the instrument cluster, or the KEY Battery Replace Warning beep.