Mazda 3 Key Fob Replacement
There are times when a Mazda 3 owner might need to change the battery on their key fob. This is an easy task that you can accomplish yourself.
Find the small button at the back of your key fob. Press the button, then remove the cover.
Lost Keys
Before the 1990s, losing your car keys was a minor inconvenience. You could replace them at any hardware store, locksmith store, or dealer and it was inexpensive to do it. The car's high-tech key fob is able to do more than just secure the vehicle and open it. However, this added convenience comes with costs - more expensive replacements.
The key fob comes with an embedded security chip within it that sends a specific code to the car's computer to enable you to open and start the engine. The key fob can also control other features such as rolling down your windows when you are in hot parking areas and requesting the car to come to you, allowing you to reverse it into tight spaces (a feature available on some Genesis GV60 sedans and Hyundai Sonata sedans).
Luckily, Mazda's remote fobs aren't as expensive from other automakers. You can even replace the battery on your key fob yourself with a little bit of know-how. To accomplish this, you'll require a small flathead screwdriver, a new CR2025 battery and your key fob. Make sure to use the directional buttons along with the red button to unlock and lock the doors prior to changing the battery.
If you're looking to save money on the cost of a Mazda 3 key fob replacement, look for one online that is OEM and doesn't require programming by a dealer or locksmith. eBay offers a variety of options, however, they might not be the exact color of your existing key fob.
Lockouts
One of the most horrible things that can happen to a driver is being locked out of their car. Luckily, there are few tricks that drivers can use to get back into their vehicle. They should first try calling their local Mazda dealership or locksmith. This is a good option as it's likely be cheaper and faster than calling a tow-truck. The locksmith or dealer will require a key code from the database to create a new key fob, which will usually cost around $100. This is why it's crucial to save this key code in a safe spot.
Another thing that people could do if stuck outside of their vehicle is to check the underneath of the key fob in search of an additional button. There is typically small, round button that can be hit and held. This will open the vehicle's doors and allow the driver to open them manually.
Another method to gain entry into the vehicle locked is by using the emergency override feature. This allows you to use your key fob to disable any functions that have been suspended by the theft deterrent system. This is usually the case. danger warning lights and emit a signalling that the doors, lids for fuel-filler or liftgate are shut.
Transponder Chips
You'll need to replace it if your key fob is equipped with a transponder embedded in the head of the L-shaped key. These chips come with a unique identification number that allows your vehicle to start the engine.
When you insert your key and then turn it to the ON position the antenna ring transmits a burst of radio frequency energy that reaches the transponder chip in the key's metal. The chip responds by sending an encoded message to the antenna ring. This informs the car that the key is legitimate.
Most Mazdas have a transponder chip with a code that is changing each time you turn it. This means that the key will not work on your vehicle until you have a second copy with the exact code in the ignition.
It's not difficult to create your own replacement key. If mazda 6 key fob can locate an original key that works and fits into your Mazda. Turn the ignition ON. You can copy the information from the key to the second key, if it starts your Mazda. You can also try the eraser method on your key fob to remove the current code, if necessary. This method is not 100% guaranteed to work, as some transponder chips that are recycled might not work properly.
Programming
The loss of your car keys can be costly and time-consuming. Mazda has made adding and programming the third car key simple. You can do this in just a few steps and you do not have to pay the dealer for the service. If you have a spare car key this is the best method to avoid having to pay for towing or dealership costs.
You'll need to buy an extra battery for your key fob. You can buy one at a hardware store or big box retailer for around $10. To open the fob, you'll need an screwdriver with a flat head. The screwdriver's head must fit into a small space or a space on the side of the fob. After removing the case, replace the battery that was in it.
Now you can program your new key fob. To do this, simply insert the working key into the ignition and turn it to ON. Wait for about five seconds and then turn the ignition off. Repeat the procedure with a second working key, and then your new (or spare) key. After this is done and the key that you have programmed should be in a position to start your Mazda. If it's not, there might be a problem with the key fob.