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Today's key fobs do far more than just unlock and start your car. They also control your windows and sunroof. As such, they are expensive to replace if you lose or damage them.

It's possible to change the fob battery yourself and save money. Here's how to do it begin by finding an opening or latch to the fob's key case and insert your tool.

Battery

Modern key fobs are useful and practical, however they do require a bit of maintenance to ensure that they are functioning properly. As time passes the battery in your key fob will degrade in power and you'll have to replace it. It's a sign that it's time to replace the battery if your car becomes difficult to start or when your buttons stop functioning.

It's simple to change the battery on your key fob. First set the key fob on a flat surface and press the metal button until it pops out. Use a flat-blade screwdriver or your fingernail to gently break apart the two halves.

Remove the clips that hold the battery. If your key fob has slots to hold the battery and replace it, you can do so by inserting a new one. Make sure to insert the new battery in the correct orientation and also in the plus and minus.

You'll need you'll need a CR 2032 3V coin cell battery which is available in most stores that sell batteries or online. The battery usually appears like a disc with the symbol of a plus and minus printed on it. When handling the battery, be careful as it can leak when your hands are filthy. The leakage may damage circuit boards and make them less likely to function correctly in the future.

Programming

The modern car key fob can do more than unlock and start the car, it's also an remote control for a variety of systems. This includes changing your seat and mirror adjustments making adjustments to the radio and climate control preferences and many more that are specifically designed to meet your needs. These smart key fobs can also be messed up by a variety of factors. Sometimes, just replacing the battery inside your key fob will do the trick, but other times changing the fob's program may be necessary.

Reprogramming the key fob of your car doesn't need to be difficult and can be done from the comfort at home or at work. Lock your vehicle and then ensure that your keys are in the vehicle. Press and hold the "Unlock" and "Lock" buttons on your new key fob at the same time, until you hear a chime, or the locks cycle. This will reset the connection between the key fob and your vehicle.

Remove the backup metal key from your fob. Set it aside in a secure place. Move the fob's back cover towards the center of it to give it a slight lift to allow you to remove it. Replace the battery of your key fob with a new CR 2032 and can be purchased at our Golden Valley parts department or at local hardware and supermarkets near Minnetonka and St Louis Park.

Keyless Entry

Modern key fobs come with various advantages, from convenience to security. You can unlock your car's doors and trunk by pressing a button on the fob that sends the radio frequency signal to the car's receiver. This method isn't without its disadvantages.

For instance, some criminals have devised devices to capture the signals that are sent by your key and reproduce them to use as an "key" to open your car and start it. You can safeguard yourself by placing your key fob inside protected case (known as Faraday pouches) which limit the distances that the frequencies of the fob's location. These pouches are available at most auto parts shops for less than PS10.

Additionally, some systems permit you to enter the car without having to press a button. When you get close to the handle of the door, the vehicle will lock and unlock automatically if your key is in its fob.

Key fobs are also a way for business owners and managers to have greater control. They can authorize specific employees to access specific areas within your building or facility at specific times during shifts. You can also revoke access for a missing or fired employee with a press of a key. This is a great tool for warehouses and other buildings that require higher security levels.

Convocation

A lot of the latest key fobs are equipped with hidden functions that simplify life for car owners. For instance, a CR auto editor, for instance has walked out to the Honda Accord he was driving and noticed that all the windows were shut down automatically when the mini car key cover was at home. This isn't ideal, particularly if you are driving in a snowstorm or rainstorm.

The Model 3's key fob has many other awesome features, like the ability to summon and auto-park the vehicle via a push of the button. The panic button is a useful feature. A driver can use it in a terrifying scenario, like when a burglar is breaking into the home. This could scare off the criminal and help to inform neighbors, according an official Tesla spokesperson.

Replace the old battery in your key fob with a new CR 2032 (available from local hardware stores and big-box retailers). Install the bottom cover of the key fob and press it hard until you hear it snap. You can test the functions of the fob by opening and closing your vehicle.

Having a duplicate key fob is beneficial because you can gift it to a family member to allow them to use the car using their own Driver Profile that displays their preferred settings. This way, you don't have to worry about your partner or sibling accidentally altering the mirror position or the temperature control settings or seat positioning that you prefer.