Mazda 2 Key Fob Replacement
While it can be frustrating to have a fob stop working, it's common and easily repaired. It is usually a replacement of the battery.
The Key Lab can be found in the majority of big-box retailers and stores. You can also find directions 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 system in your car is a remote control system that lets you to lock and unlock your vehicle without the need to physically insert keys. The keyless entry system is usually found on a keyfob or integrated into the ignition key handle. Some models also offer the option of locking remotely the tailgate and trunk.
The system operates by transmitting a radio signal from your key fob to your car's computer. The car reads the radio signal to determine if it's the right key. If it's the correct one, the doors will unlock automatically and the engine will begin. The key fob also has an integrated security chip that blocks the vehicle from starting if the wrong key is used.
Keyless entry systems have their pros and drawbacks. They are prone to being accidentally activated by children playing with them, or activated when the owner isn't in the vehicle. This can cause power windows and other functions of the vehicle to operate without the owner’s knowledge or consent and can even cause the alarm to go off.
There are many ways that thieves could hack into the computer in your car to trick it into thinking that your key fob was close enough to start your car. It is therefore important to ensure that you always have a backup working fob or key.
How do I replace my keyless entry system?
If the battery in your car's key fob fails while you're moving, it can be a major hassle. It's easy to replace the battery on a Mazda 2 flip key transponder. You'll need to know how to open the key fob as well as which type of battery to buy.
Use a tape-wrapped screwdriver to gently pry the case open starting from one end to the other. Be careful not to break it. Once the case has been opened, remove the previous battery. Put the case where so that it is not forgotten. Replace the new battery, ensuring to align it so that the positive side faces upwards.
You can also program the replacement fob by writing down the code from the back of the manual key. While you can duplicate a key made of metal at a hardware store, many of the more modern smart keys require programming by a locksmith or dealer.
The cost of purchasing a new fob, program, and mechanical backup keys can be costly. Make sure to check your warranty or auto club membership or insurance policy to see whether they pay for the cost. You might be able to save money by purchasing an aftermarket fob online and having it programmed by a locksmith, instead of the dealership.
How do I program my keyless entry system?
In general, the same steps can be used to program a key fob on the majority of major automobile models. However, the process for certain cars may be a little different and might require special hardware or software. In these instances you should consult the manual or contact a dealer for more assistance.
Before starting, be sure that you have all the required materials and tools. It is recommended to go through the instruction manual for the keyless system to understand how it functions. Installation is fairly easy however, the steering wheel cover must be removed in order to reach the wires to connect. Once you have all the wires connected, it is essential to wrap them in electrical tape to ensure protection and insulation.
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 in your ignition is switched on, simultaneously press and hold both the unlock and the lock button of the new remote for 30 seconds. If you've done it right the vehicle will chime. The programming process will also be successful. After programming a new keyfob successfully turn the ignition to "OFF" and check all buttons to make sure that they function.
How do I replace the battery in my keyless entry system?
Replace the batteries in your keyfob every couple of years or when you notice that your keyfob is less responsive. This can be done within less than 10 seconds. Most of the time you don't need to change the key fob's programming after replacing the battery.
You'll need to ensure you have the correct battery in your arsenal. If you flip the key fob over it should show the type of battery written on it. If it is illegible it is possible to utilize a small flat screw driver to break open the key fob and inspect inside. Key fobs generally accept the CR-1620 battery that is easily available at a variety of stores, including Home Depot Walmart & AutoZone.
It is easy to open the key fob after you have removed the mechanical key. Use a flathead screwdriver or your fingernail in order to do this. Then, take out the old battery, replacing it with the one that you previously purchased. The positive (+) side of the new battery must be facing up. Reassemble the two sides and snap it close.
Some key fobs need programming. This can only be done using a specific tool that is only available to dealers or automotive locksmiths. Keys that do not have transponders do not require programming, therefore they are a good choice for those without the tools to program their car.