Different Types of Mazda Replacement Keys
There are a number of ways you can replace your Mazda key when it ceases to function or if you lose it. Some are cheaper and easier than other options.
new mazda key can duplicate a chipped key and reprogram it for your car. A dealership might also be able of doing this for you.
Transponder Keys
If you own a car made in the last 20 years It is likely that your key has an embedded transponder chip. These chips are used as an additional security feature on your vehicle to protect it from being stolen. When you insert a transponder keys into the ignition, the engine control unit transmits a coded message to it. If the code matches, your vehicle will begin to move.
The advantage of a transponder key is that it can't be duplicated by most duplicators. This doesn't mean the key is secure from thieves. There are a variety of ways for skilled thieves to wire a vehicle equipped with an embedded transponder chip.
Transponder keys may be somewhat more expensive, but they also offer more security and features. It could be worth it to keep your car from being stolen.
You can obtain an extra transponder key for your vehicle by visiting an auto locksmith or a local shop which offers a key cloning service. You can also program the chip with an owner's manual that is detailed. If you decide to do this, ensure that you have a high-quality key duplicate. A cheap key could damage the transponder chip inside and cause your vehicle to not start.
Mechanical Keys
It is possible to think of the classic IBM Model M keyboard when you hear the word "mechanical key. The switches are equipped with stems which hold keys in place and a spring. This is the reason why the switches feel good when you press the keycap. The keycaps themselves are made of a flat top and are either rounded or have ridges. These are the keys that people are talking about when they discuss getting a "feel" for their keyboards.
Mazda's key system comes with a number of security features designed to deter theft. One of those is a security chip built in the key, which transmits signals to the ignition. The chip is designed to prevent the car from starting if the incorrect code is entered in the transponder of the key.
However even these systems may fail at times. It's important to always have a backup key that is mechanical to get back on the road.
The most effective way to have backup is to get your dealer cut it and program it to your vehicle. It's usually less expensive and quicker than purchasing an entirely new keyfob. You will also be assured that your car is still secure even if the electronic system fails. If you're looking to have your mechanical key programmed, the procedure will vary based on the manufacturer of your vehicle and model.
Fob Keys
Fob keys emit a number that is matched by a computer within the car to open doors and also start the engine. While they are practical and safe, replacing them can be expensive, especially when the only one you have is lost.
The process differs by automaker. However, many offer instructions on their websites or in their owner's guides. A key fob replacement cost could range from $50 to $300, plus the price of a mechanical backup key. It's a good idea to have an extra key fob on hand. If you're looking to buy a new vehicle, many dealers will provide a more expensive price if they have two functioning remotes.
Key fob batteries last for about a year. It's important to change them before they go out of service. A dead battery may prevent your key fob from unlocking or start the vehicle.
A drained battery may cause the buttons on the key fob to stop working and make it difficult to exit or enter your vehicle.
To replace a key fob's battery first, remove the key fob's plastic case and set the battery on the ring of a small rubber. Take your new battery and place it inside the case, positive (+) facing upwards. Attach the case back to the key fob by placing the ring in the case and pressing both sides until they click into place.
Remote Control Keys
Some models of mazda keys have the remote integrated into the key's head that makes it a double-in-one device. This type of key is useful and adds an extra layer of security to your vehicle because it stops thieves from using the traditional flat metal keys to unlock the car.
In addition to serving as an effective deterrent to thieves this type of Mazda key can also control the car's power windows and panoramic roof*, based on the model. The Red Key allows car owners to restrict certain features such as the maximum speed and volume of the loudspeaker.
If a Mazda key is left in the vehicle, the engine will not start and the alarm will sound. The transponder chip contained in the key disables the immobiliser system within the ECU.

To prevent this from happening, it is important to always take the Mazda key with you when you leave your vehicle. Make sure to keep the Mazda Key near any electronic or metallic device. Mobile phones, tablets and laptops should be kept at least 10 cm away from the charger. If this isn't possible, the key should be kept away from them as far as is feasible.