How to Replace a Dead Mazda 5 Key Fob
There are plenty of wonderful features included with your Mazda 5 key fob. Some of these improve performance or safety, while others make driving around East Stroudsburg, Brodheadsville, and Saylorsville easier.
One of these handy features is the remote start system. If you're having difficulty starting your vehicle it could be time to change the battery on your key fob.
What is a keyfob?
2011 mazda 3 key fob are remote control that lets you unlock and start your car without the need to insert a metal key in the ignition. It is a small, lightweight device that has a microchip which stores information like a unique ID and an antenna to send and receive signals. The microchip communicates via radio frequencies with the receiver inside your vehicle. These signals are a form of near-field communications (NFC), which also allows for contactless payments and other features that require proximity.
Based on the type of key fob that you have, it will offer different features. For instance, some systems will keep a log of who inserted and when, which can be hugely beneficial in preventing criminal activity. Security measures can also be added, like encrypted keys which make it harder to copy. Prox cards are a popular fob and are also called 125khz cards, 26-bit proxy or proximity fobs.
It is always advisable to have an extra car key fob in case the original one is stolen or lost. It is convenient and cost-effective to create a third keyfob on your own. However, it is important to remember that the process may vary between manufacturers and isn't always easy. It may take some research to find the proper instructions and steps, but it's well worth it to have a better key fob that helps you reach your destination in safety.
How do I open the keyfob
Nothing is more frustrating than attempting to press the unlock button on your Mazda key fob and finding that it's not working. It doesn't matter if you're getting ready for your day at the office or returning home after an adventurous afternoon at EAA Airventure, a dead key fob battery can really affect your plans.
Fortunately, replacing the battery in your key fob is easy and can be done at home using just the right tools. Holiday Mazda's customer service team has created this guide to help you open the keyfob to replace batteries.
Press the auxiliary button on the backside of your key fob to remove the metal auxiliary. After removing the key you will find an opening on the opposite side of the case. The case should be opened with a tape-wrapped screwdriver. It should be able to break off without damaging the rubber ring beneath the battery.
Now that the battery is exposed, take the old one out and set it aside in a place where you will not forget about it. Set the new battery in its original position, ensuring that the positive (+ side) of the battery is facing upwards. Close the case when the new battery has been installed, ensuring that both sides snap in place. Now you're ready to use your Mazda key fob again!
What's the battery used in a key fob?
Most key fobs use small, coin-shaped batteries called button cells. These batteries are found in a variety of places like general stores, home improvement centres and auto parts stores. It is vital to select the correct size of battery for your keyfob. Different sizes of batteries have different discharge characteristics that can influence how your keyfob operates.
You can usually tell if the battery in your key fob is dying by pressing the buttons and watching the LED light. If the LED light does not come on it means the battery is dead. It's time to get it replaced. You can also use a voltmeter on the battery to determine its voltage. A fully charged key fob should display about 3 Volts. If the battery reads less than that, it is low and should be replaced.
The first step to replace the battery is to open up your key fob and find the notch that splits it into two halves. You could use a screwdriver, a knife, or even your finger to push into this notch and wedge the halves apart. After the halves have been separated then look for a screw that is seated on the back of the key fob, and loosen it. Place the screw in an accessible spot such as a resealable mug or bag to prevent losing it.
How to replace the battery on a key fob
A key fob is a small device that is attached to the ring of your keys with buttons that let you lock and unlock your vehicle and even start it remotely (one of the many possible uses for these tiny devices). The fob transmits an electronic signal to the car, which allows it to do this, but that signal is powered by batteries. Your Mazda won't be able to perform any action should the battery fail. This can be a major inconvenience. It's easy to replace the key fob battery.
The first step is to unlock the key fob by pressing the tip of a screwdriver into the seam where the two halves snap together. The seam will usually have an notch that makes it easier to tear the halves apart.
After you have opened the case, remove the old battery by gently pulling on the key blade until it triggers an apex and it pulls away from the case. Push the new CR2025 battery into position, making sure that the upside side is facing upwards. Once the new battery is installed, replace the black cover piece and slide the blade into place.
This is a quick and simple procedure which can be carried out at home in Springfield but the steps will differ based on the year of your vehicle and the key fob design. If you have any questions or concerns, the team at Eich Mazda is here to help!