Mazda 2 Key Fob Replacement
Although it can be a bit frustrating to see a device stop working, it is fairly common and easily repaired. It is usually a changing the battery.
Batteries are available at most big-box retailers and hardware stores. You can also find instructions in your owner's manual or on YouTube on how to replace the battery by opening the fob.
What is a keyless access system?
mazda rx8 key fob inside your vehicle is a remote control system that enables you to lock and unlock your vehicle without having to physically insert keys. The keyless entry system is usually located on a keyfob or integrated into the ignition key handle. Some models let you choose to remotely lock the trunk and tailgate.
The system transmits an radio signal from the key fob to your car's computer. The car will then analyze the signal to determine if it's the correct key. If it's the correct key the doors will open automatically and the engine will begin. The key fob itself also has a security chip, or transponder, that prevents the car from starting when the wrong key is used.
Keyless entry systems come with advantages and drawbacks. They are prone to being accidentally activated by children playing with them or activated when the owner isn't present in the vehicle. This could cause power windows and other functions of the vehicle to function without the owner's consent or knowledge and can even set off the alarm.
Another issue is that there are a variety of ways that thieves could breach the security of keyless entry systems and even hack the computer in your vehicle to make it believe your key fob is near enough to start the car. It is therefore crucial to ensure that you always have a backup working fob or key.
How do I change my keyless entry system?
It can be a major problem if your key fob's battery fails while you're driving. Luckily, changing a Mazda 2 transponder flip key's battery is relatively simple. It's just a matter of knowing how to open the key fob and which kind of battery to purchase.
Make use of a tape-wrapped screwdriver gently open the case, working from one side to the other. Be careful not to break it. After the case is opened, remove the previous battery. Place the case in a place that you will not forget about it. Replace the battery, turning it to ensure that its positive face is facing up.
You can also program your replacement fob by writing down the code number from the back of the manual key. It is important to note that although you can copy an old car key at hardware stores, a lot of the most recent smart keys require programming by an expert locksmith or dealer.
The cost of purchasing a new fob, programming, or a mechanical backup key could add up. If you have an auto club membership or insurance policy, check to see if it's enough to pay for the cost. You may be able to save some money by getting an aftermarket fob online and having it programmed by a locksmith rather than a dealership.
How do I program my keyless entry system?
In general, the same steps are used to program key fobs for all major car brands. The procedure for certain cars might be different and require special hardware or computer software. In such cases it is recommended to read the manual or contact an authorized dealer for additional assistance.
Make sure you have the tools and materials that you require prior to starting. It is recommended to also review the instruction manual of the keyless entry system to gain more understanding of the way it works. Installation is pretty straightforward however the cover on the steering wheel must be removed in order to reach the wires for the connection. Wrapping the wires in electrical tape will protect and shield them.
To program a key fob in the new vehicle, insert the ignition key that was originally used and turn it to the "ON" setting (not the "start" or "run") When the key in the ignition is turned on simultaneously press and keep holding both the unlock and lock button of your new remote for 30 minutes. If you have successfully completed the process your vehicle will sound. The process of programming is also successful. After programming a new keyfob successfully switch 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 the key fob is becoming less responsive, you'll need to replace the batteries in your key fob. This task can be accomplished in under 10 minutes. You don't have to reprogram the key fob every time you change the battery.
First, you'll want to ensure that you have the appropriate type of battery in stock. If you flip the key fob over it, you should see the name of the battery on it. If it's unclear it is possible to make use of a small flat head screw driver to remove the key fob and look inside. Generally, key fobs accept batteries CR-1620 that are available at many stores such as Home Depot, Walmart, & AutoZone.
Once you have removed the mechanical key from the key fob you can easily open it using the help of a flathead screw driver or your fingernail. Then, take out the old battery, and replace it with the one you purchased earlier. The positive (+) side of the new battery must be facing up. Reassemble the two sides and then snap it shut.
Certain key fobs require programming which can be done using a special tool that an automotive locksmith or dealer has access to. Non-transponder keys do not require programming, and therefore are a good choice for those who do not have the tools to program their car.