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Mazda 2 Key Fob Replacement It can be frustrating when a device stops working. However it's a common problem and can be resolved easily. It is usually a simple issue of replacing the batteries. Batteries are available at many big-box retailers as well as hardware stores. There are also instructions in your owner's manual or on YouTube on how to replace the battery by opening the fob. What is a keyless system? The keyless entry system that is in your car is a remote control system that lets you to lock and unlock your vehicle without physically inserting the keys. It's usually on an accessory key fob or incorporated into the ignition key handle. Some models let you choose to remotely lock the trunk and tailgate. The system operates by transmitting a radio signal from the key fob to your car's computer. The car will then analyze the signal to determine whether it is the correct key. If it is it is, the doors will unlock and the engine will be started. The key fob also includes a security chip, or transponder, that prevents the car from starting if the wrong key is used. While keyless entry systems are convenient, they do have some disadvantages. Children may accidentally activate them by playing with them, or they can be turned on when the owner is not in the vehicle. This can cause power windows and other features of the vehicle to function without the owner's consent or knowledge and could even trigger the alarm. There are numerous ways that thieves could hack into the computer of your car to fool it into thinking that your key fob was close enough to enable your car to start. It is important to always have a fob or backup key. How do I replace my keyless access system? If the battery in your car's key fob is dead while you're on the moving, it can be a huge inconvenience. It's simple to replace the battery on a Mazda 2 flip key transponder. You'll be required to know the proper procedure to open the key fob, as well as the type of battery you should buy. Use a screwdriver with tape wrap to gently pry the case open and work from one side to the other. Be careful not to damage it. After the case has been opened it is possible to remove the old battery and put the case in a place where you will not lose it. Replace the new battery, ensuring to place it in a way that the positive side faces towards the upwards. It's also a good idea to note down the code number on the reverse of your manual key, so that you can program the replacement fob by using it. While you can duplicate a key made of metal at a hardware store, many of the more modern smart keys require programming by an expert locksmith or dealer. The cost of purchasing a new fob, programming, and a mechanical backup key can be costly. Check mazda 6 key fob or auto club membership or insurance policy to see whether they'll cover the cost. You may be able save money by buying a replacement key fob online, and having it programmed instead by a locksmith. How do I program my keyless entry system? In general, the same procedure can be used to program a key fob on the majority of major automobile models. The procedure for certain models may be slightly different and require special hardware or computer software. In those cases, it would be best to refer to the manual or contact an authorized dealer for assistance. Before starting, make sure that you have all of the required materials and tools. It is recommended to review the instruction manual of the keyless entry system to get a better understanding of how it operates. Installation is pretty straightforward but the cover for the steering wheel needs to be removed in order to reach the wires needed for the connection. Wrapping the wires in electrical tape will protect them and insulate them. To program an entirely new key fob insert the original key into the ignition and turn it to the “ON” position (not the start or run position). While the key is in the ignition while you hold and press both the lock and unlock buttons on your new remote for a minimum of 30 seconds. If you've done it right your vehicle will sound. The process of programming is also successful. After programming the new keyfob successfully turn the ignition to “OFF” and test all buttons to confirm that they work. How do I replace the battery in my keyless entry system Every few years or when your key fob is becoming less responsive, you'll have to replace the batteries on your key fob. This is a simple task that can be completed in about 10 seconds. You don't have to reprogram the key fob every time you change the battery. You'll need to ensure you have the right battery in your arsenal. The battery's type should be noted on the key fob, if you flip it over. If it's not legible then you can make use of a small flat head screw driver to break open the key fob and inspect inside. Key fobs typically accept the CR-1620 batteries, which are easily available at a variety of stores, including Home Depot Walmart & AutoZone. It is easy to open the key fob by you have removed the mechanical key. Use a screwdriver that is flat or your fingernail for this. Replace the old battery with the new one you purchased. Make sure that the new battery has its positive (+) side facing upwards Then, reassemble the two sides of the key fob and snap to close it. Certain keys require programming. This can be done using a special tool that is available to dealers or automotive locksmiths. However, non-transponder key fobs are not required to be programmed, which makes them a great choice for those who don't have tools to program their car.