Mazda 3 Key Fob Replacement
There are occasions when an Mazda 3 owner might need to change the battery on their key fob. This is a simple task you can perform yourself.
Find the small button located at the back of your key fob. Press it and then take off the cover.
Lost Keys
Losing your car keys used to be an issue of minor importance. It was relatively inexpensive to replace them at any hardware store, dealer or locksmith. Today, your car's high-tech key fob is capable of doing more than lock and start your vehicle Its added convenience comes with a cost: more expensive replacements.
The key fob is equipped with a security chip embedded in it that transmits a unique code to the car's computer in order to enable you to open and start the engine. The key fob is also able to control other functions, such as rolling down your windows when you are in hot parking areas and requesting that the car come to you, allowing you to reverse out of a tight spot (a feature available on some Genesis GV60 sedans and Hyundai Sonata sedans).
Fortunately, Mazda's remotes aren't as costly as those from other automakers. You can even change the battery in your key fob by yourself with a little bit of knowledge. To do this, you'll need an inexpensive flathead screwdriver, a new CR2025 battery and your key fob. Use the red and direction buttons to lock and unlock your doors before changing the batteries.
If you're looking to cut costs, find a Mazda 3 keyfob online that is OEM. It doesn't require programming by an authorized locksmith or dealer. eBay has many options, but they might not be the exact color of your existing key fob.
Lockouts
One of the worst things that can happen to a driver is becoming locked out of their vehicle. There are some tricks that drivers can employ to gain entry inside their vehicle. You should first contact their local Mazda dealership or locksmith. This is a good option because it's cheaper than calling a truck and will be quicker as well. A locksmith or dealer must buy a keycode from the database to be able to create a new fob. The cost is around $100. It's important to secure this code.
The other thing that people can do if they are stuck outside their vehicle is to look on the underneath of the key fob to locate an additional button. mazda key fob is usually tiny and round. It can be hit. This will unlock the doors of the vehicle, allowing the driver to open them manually.
The emergency override function is a different method to gain access an automobile that is locked. This will allow the key fob to take over the functions that are suspended by the theft-deterrent system. This usually triggers the hazard warning lights and beep sounds to confirm that the doors, fuel-filler lid or liftgate are locked.
Transponder Chips
You'll need to replace it if your key fob is equipped with an embedded transponder in the head of the metal L-shaped key. The chips have a unique identification code that can be used to start your vehicle.
The antenna ring emits a blast of radio frequency energy when you insert your key in the metal and switch it on. This energy reaches the chip transponder inside the key. The chip responds with an identifier that is sent to the antenna ring, telling the car that it's a valid key.
The majority of Mazdas have transponder chips with an evolving code that changes each time you turn it. This means that the key will not work on your vehicle until you have a copy with the exact same code in the ignition.
It's not difficult to make your own replacement keys. If you're able to find an actual key, you can insert it into your Mazda and turn the ignition to ON. If the key starts your vehicle, you can copy the information to the working key. You can also try using the eraser process on your key fob in order to erase the current code, if required. This method isn't guaranteed to be effective as transponder chips that are that are recycled might not work properly.
Programming
The loss of your car keys can be an expensive and time-consuming ordeal. Luckily, Mazda has made it easy to program and add an additional key. It is possible to do this in only a few steps and you won't have to pay the dealer for the service. You will not have to pay for towing or dealer fees if you have an extra car key.
You'll need to buy a new battery for the key fob. You can buy one from a hardware store or large box retailer for about $10. To open the fob, you'll need a flathead screwscrew. The screwdriver's head must fit into tiny slots on the side of the fob. After taking the case off, replace the battery that was in it.
Now you can program your new key fob. Insert the first key that operates into the ignition and turn it on. It should be on for about five seconds then switch it off. Repeat the process using an additional key that works before switching to your new (or additional) key. Once you have done this, your Mazda should now be able started with the newly programmed keys. If not, it could be a problem with the key fob.