There are times when a Mazda 3 owner might need to change the battery on their key fob. This is a simple task that you can complete yourself.
Find the small button located at the back of your key fob. Press the button to remove the cover.
Lost Keys
Before the 1990s the 1990s, losing your car keys was an annoyance that was not a major inconvenience. It was fairly inexpensive to replace them in any hardware store, dealer, or locksmith. Your car’s high tech key fob can do much more than simply secure the vehicle and open it. However, that convenience comes at a price – more expensive replacements.
The key fob is equipped with a security chip built into it that sends a unique code to the car’s system to enable you to open and start the engine. The key fob is capable of controlling some other features, such as opening and closing the windows when you’re in a hot parking lot and summoning your car for easier reversing into an area that is tight (a feature available on some Genesis GV60 and Hyundai Sonata sedans).
Fortunately, mazda rx8 key fob‘s remotes aren’t as expensive as those from other automakers. You can even replace the key fob battery yourself, with a bit of knowledge. You’ll need a flathead screwdriver and the new CR2025 to do this. Use the red and direction buttons to lock and unlock your doors before changing the batteries.
If you want to save money on an Mazda 3 key fob replacement find one on eBay that is OEM and does not require programming by a locksmith or dealer. eBay offers a wide selection of options, however, they may not be the exact color of your existing key fob.
Lockouts
A driver being locked out of their vehicle is one of the worst things that can occur. Luckily, there are few tricks that drivers can apply to get back in their car. First, they should consider calling their local locksmith or Mazda dealership. This is a viable option, as it will likely be cheaper and faster than calling a truck. A locksmith or dealer must purchase a key code in the database to be able to create a new fob. This will cost approximately $100. It’s important to keep the code secure.
If you are stuck outside your car, the second thing people can do is look for an additional key on the underside. There is usually an oblong, small button that can be pressed and held. This will unlock the doors of the vehicle and permit the owner to open them manually.
Another way to gain entry into a locked vehicle is by using the emergency override feature. This will allow the key fob to take over the functions that are disabled by the theft-deterrent system. This will trigger the warning lights and sound to ensure that the doors, lids for the fuel filler or liftgate are closed.
Transponder Chips
You’ll need to replace it if your key fob is equipped with a transponder built into the head of the L-shaped key. The chips have an unique identification number which is used to open your vehicle.
When you insert your key and turn it to ON, the antenna ring emits an explosion of radio frequency energy that gets to the transponder chip that’s in the key’s metal. The chip responds by sending an encoded message to the antenna ring. This tells the car that the key is legitimate.
Most Mazdas utilize an electronic transponder chip which changes its code each time you turn the key. This means that your key won’t work with your vehicle until you have a copy with the exact code in the ignition.
It’s not difficult to create your own replacement key. If you’re able find an operational key, put it in your Mazda and turn the ignition to ON. If the key is able to start your car, you’ll then be able to copy the data from it onto the other working key. You can also use 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 recycled may not work correctly.
Programming
Losing your car keys is an expensive and lengthy process. Mazda has made adding and programming a third car key easy. This can be done in a few simple steps and you won’t need to pay an agent for this service. You can avoid paying for towing or dealer fees if you have an additional car key.
You’ll first need to purchase an extra battery for your key fob. One can be purchased at the big box retailer or a hardware store for about $10. To open the fob, you’ll need an screwdriver with a flat head. The screwdriver’s head must fit in a small slot or a space on the back of the fob. Once you’ve removed it you’ll need replace the old battery with a new one.
Now you can program your new key fob. To do this, put the working key into the ignition and then turn it ON. It should be on for about five seconds and then turn off the ignition. Repeat the process with a second key that works, and then your new (or extra) key. After you’ve completed this the new key should be in a position to start your Mazda. If it’s not, there may be a problem with the key fob.