Mazda 2 Key Fob Replacement
It can be a bit frustrating when a fob ceases to function. However it's a common problem and is easily fixed. It is usually a simple issue of replacing the batteries.
Batteries for replacement are available at most hardware stores and big-box retailers. 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 entry system?
The keyless entry system you have in your car is a remote control system that lets you to lock and unlock your vehicle without having to physically insert keys. It's typically on the key fob or integrated into the ignition key handle. Certain models allow you to remotely lock the trunk and tailgate.
The system transmits an audio signal to the computer in your car. The car analyzes the radio signal to determine if it's the right key. If it is it is, the doors will unlock and the engine will be started. The key fob also has a security chip, also known as a transponder, that prevents the vehicle from starting if the incorrect key is used.
Keyless entry systems have their advantages and disadvantages. They may be activated accidentally by children playing with them or activated when the owner isn't there in the car. This can cause the power windows as well as other features to be in operation without the owner's permission or knowledge, and it may even set off the car alarm.
Another issue is that there are a multitude of ways that thieves could breach the security of keyless entry systems and hack into the computer system of your vehicle, making it think your key fob is close enough to enable the car to start. It is therefore important to ensure that you have a spare working key or fob.
What can I do to replace my keyless access system?
If the battery in your car's key fob goes out while you're on move, it can be a major inconvenience. Luckily, changing a Mazda 2 transponder flip key's battery is pretty simple. You'll need to know the correct method to open the key fob, and what type of battery you need to purchase.
Use a screwdriver with tape wrap to gently open the case, working from one side to the other. Be careful not to damage it. Once the case is opened and the battery removed, you can take out the battery that was in it and put it in the case where you'll not lose it. Replace the battery by orienting it to ensure that its positive face is facing up.
It's recommended to note the code number on the reverse of your manual key in order to program the replacement fob using it. While you can duplicate a key made of metal in a hardware store, many of the newer smart keys require programming by a locksmith or dealer.
The cost of buying a new fob, a new programming device, and mechanical backup keys can add up. Examine your car's warranty, auto club membership, or insurance policy to see whether they will cover the cost. You could be able save money by purchasing an aftermarket fob online and having it programmed by a locksmith, rather than the dealership.
How do I program my keyless entry system?
In general the same process is used to program key fobs on most major auto brands. However, the procedure for certain vehicles might be different and may require specialized hardware or software. In these cases it is best to read the manual, or consult an authorized dealer for further assistance.
Be sure to have the materials and tools you need before starting. It is recommended that you study the manual for the keyless system in order to better understand how it functions. Installation is pretty straightforward but the cover of the steering wheel must be removed to access the wires for the connection. Wrapping the wires with electrical tape will shield and insulate them.
To program an entirely new key fob insert the original key into the ignition and then turn it to the "ON" position (not the start or run position). When the key is in ignition while you hold and press both the lock and unlock buttons on your new remote for at least 30 minutes. If you do it correctly, the vehicle will sound a chime, and the programming process will be successful. After successfully programming a new key fob, turn the ignition back to the "OFF" position and test all buttons to verify that they are working properly.
How do I change the battery in my keyless entry system?
Every few years or when the key fob becomes less responsive, you'll have to replace the batteries on your key fob. This task can be completed within less than 10 seconds. You don't need to reprogram the key fob each time you replace the battery.
You'll need have the correct battery in your possession. The type of battery you're looking for should be written on the key fob when you flip it over. If it's not legible then you can utilize a small flat screw driver to unlock the key fob and examine inside. Generally, key fobs accept batteries CR-1620 that are available at numerous stores including Home Depot, Walmart, & AutoZone.
After you've removed the mechanical key from the key fob, you can easily open it by making use of a screwdriver with a flathead or your fingernail. Replace how to open a mazda 5 key fob with the one you bought. Make sure that the new battery has its positive (+) side facing up and then reassemble the two sides of the key fob and snap to close it.
Some key fobs require programming and can only be accomplished with a special tool that an automotive locksmith or dealer has access to. However, non-transponder key fobs are not required to be programmed, making them a great option for those who don't have the tools needed to program their vehicle.