Mazda 2 Key Fob Replacement
Although it can be a bit frustrating when a device stops working, it is fairly frequent and easily fixed. It is usually a matter of replacing the batteries.
Batteries can be found at most big-box retailers and hardware stores. There are also instructions in the 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 feature in your car is a remote-control system that allows you lock and unlock the vehicle without needing to insert your keys. It is typically contained on a key fob, or built into your ignition key handle. Some models offer the option to remotely lock the trunk and tailgate.
The system transmits an audio signal to the computer in your car. The car reads the radio signal to determine if the key is the correct key. If it is, the doors will automatically unlock and the engine will be started. The key fob also comes with a security chip, or transponder, which prevents the car from starting when the wrong key is used.
Keyless entry systems have their advantages and drawbacks. Children may accidentally activate them when playing with them, or they could be turned on when the owner is not in the vehicle. This could cause the power windows as well as other features to be in operation without the owner's knowledge or permission and may trigger the car alarm.
There are many ways that thieves could hack into the computer system of your vehicle to fool it into thinking your fob's key was close enough to allow you to start your car. It is essential to have a working fob or backup key.
How do I change my keyless entry system?
If the battery in your car's key fob is dead while you're on the move, it can be a major problem. Fortunately, changing the Mazda 2 transponder flip key's battery is relatively simple. You'll need to know how to open the key fob and which kind of battery to purchase.
Use a tape-wrapped screwdriver to gently pry the case open and work from one side to the other. Be careful not to damage it. Once the case has been opened, remove the previous battery. Put the case where so that you don't forget it. Replace the battery by orienting it to ensure that its positive side is facing upwards.
It's recommended to note the code number on the back of your manual key so that you can program the replacement fob with it. Also note that while you can duplicate an old metal car key at hardware stores of the latest smart keys require programming from an expert locksmith or dealer.
The cost of a new fob, a new programming device, and mechanical backup keys could add up. If you have an auto club membership or insurance policy, make sure to see if it will pay for the cost. You might be able save money by purchasing an aftermarket fob on the internet and having it programmed by a locksmith, rather than the dealership.
How do I program my keyless entry system?
In general the same steps are used to program key fobs for most major auto brands. However, the process for certain vehicles might be different and might require special hardware or software. In these cases it is recommended to read the manual or contact an authorized dealer more assistance.
Make sure you have all the tools and materials you require prior to starting. It is also recommended to study the instruction manual for the keyless entry system in order to get a better understanding of how it operates. Installation is fairly simple, but you will need to remove the cover of your steering wheel to access the wires necessary for the connection. Wrapping 2011 mazda 3 key fob in electrical tape will shield and protect them from damage.
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). While the key is in ignition, simultaneously press and hold both the lock and unlock buttons on your new remote for a minimum of 30 minutes. If you have done it correctly the vehicle will chime. The programming process is also successful. After programming a new keyfob successfully switch the ignition to "OFF" and test all buttons to ensure that they function.
How do I change the battery on my keyless entry system?
Replace the batteries on your keyfob at least every couple of years or whenever you notice it's less responsive. This is a simple task which can be completed within a matter of 10 seconds. You don't have to reprogram the key fob every time you replace the battery.
You'll need to make sure you have the right battery on hand. The type of battery you're looking for should be clearly written on the key fob in case 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 look inside. Key fobs generally accept batteries of CR-1620, which are readily available at many stores such as Home Depot, Walmart, & AutoZone.
It is easy to unlock the key fob by taking off the mechanical key. Use a screwdriver that is flat or your fingernail for this. Then, take out the old battery, and replace it with the one you bought previously. Make sure that the new battery has its positive (+) side facing up and then reassemble both sides of the key fob, and snap to close it.
Certain keys require programming and can only be done with a specific tool that an automotive locksmith or dealer has access to. Keys that do not have transponders do not require programming, and therefore are a good choice for those who do not have the tools to program their car.