Mazda 3 Key Fob Replacement
There are instances when a Mazda 3 owner might need to change the battery on their key fob. This is a simple task that you can do yourself.
Find the small button at the back of your key fob. Press this and remove the cover.
Lost Keys
The loss of your car keys used to be an inconvenience that was minor. You could replace them at any hardware store, locksmith, or dealer, and it was fairly affordable to do this. Your car's modern key fob is able to do more than simply lock and start your car. But that added convenience comes with costs - more expensive replacements.
The key fob contains security chips that transmit an exclusive code to the computer in the car that allows it to unlock and start it. The key fob can also be used to control other features, like rolling down your windows in a hot parking area and summoning the car to you in order to reverse into a tight space (a feature available on some Genesis GV60 sedans and Hyundai Sonata sedans).
Mazda's remote controls don't cost nearly as costly as other car manufacturers'. With a little bit of knowledge, you can replace the battery of your key fob yourself. To accomplish this, you'll require a small flathead screwdriver, an updated CR2025 battery and your key fob. Use the red and the directional buttons to lock and unlock your doors before changing the batteries.
If you're looking to save money on an Mazda 3 key fob replacement find one on eBay that is OEM and doesn't require programming by a dealer or locksmith. You can find a wide selection on eBay, though they may not have the same colour or logo as your current key fob.
Lockouts
One of the most devastating things that can happen to a driver is becoming locked out of their vehicle. There are some tricks drivers can employ to gain entry inside their vehicle. They should first try calling their local Mazda dealership or locksmith. This is a good option, as it will likely be cheaper and faster than calling a tow-truck. The dealer or locksmith will require a key code from the database to cut you an additional key fob, which typically costs around $100. This is why it's crucial to keep this key code in a safe spot.
The other thing that people can do if they are stuck outside of their vehicle is to check the underside of the key fob to locate an additional button. The button is usually smaller and round, but can be hit. mazda 6 key fob will open the doors of the vehicle, allowing the owner to open them manually.
The emergency override feature is a second method to gain access a locked car. This will allow the key fob to take over the functions suspended by the theft-deterrent system. This will activate the hazards lights and sound to verify that the doors, the lid for the fuel filler, or liftgate is closed.
Transponder Chips
If your key fob has the chip for transpondering built into the head of the metal key with the L shape, you'll have to visit a locksmith or dealer in order to get it replaced. These chips are equipped with an identification code that can be used to start your vehicle.
When you insert your key and turn it to the ON position the antenna ring releases an explosion of radio frequency energy that reaches the transponder chip in the metal key. The chip responds by sending a code to the antenna ring. This informs the car that the key is legitimate.
Most Mazdas use an electronic transponder chip that changes its code every time you turn the key. This means that the key you're using won't be compatible with your vehicle until you have a duplicate using the same code in the ignition cylinder.
It's not that difficult to make your own replacement keys. If you can locate an original key that works in your Mazda. Then turn the ignition on. If the key is able to start your car, you can then copy the information to the other working key. You could also try the eraser process on your key fob to erase the current code, if needed. This method is not 100% guaranteed to work, as some transponder chips recycled might not function correctly.
Programming
Losing your car key is expensive and time-consuming. Mazda has made adding and programming an additional car key simple. This can be accomplished in a couple of steps, and you don't need to pay a dealer for this service. You will not have to pay for towing or dealership charges if you have an extra car key.
You'll first need to purchase a new battery for the key fob. You can buy one at an online retailer or at a hardware store for approximately $10. You'll also need a flathead screwdriver in order to open the fob. The screwdriver's head should fit into a small slot or a space on the side of the fob. After you've removed the case, you'll need to replace the old battery with a new one.
Now you can program your new key fob. Insert the first key that operates into the ignition and turn it ON. It should take about five seconds before turning the ignition off. Repeat the process with a second working key, then your new (or spare) key. After this is done, the newly programmed key should be capable of starting your Mazda. If not, it might be a problem with the key fob.