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Car Key Button Repair The buttons on the car keys are exposed to a lot and are especially vulnerable if often used. This could lead to them becoming faulty over time. There are a variety of quick fixes to make your keys work again. These methods do not come without risk however. Altering batteries or altering your key fob's security can be dangerous. If you're not comfortable performing these yourself, it's recommended to contact a professional auto locksmith. Change the Battery If you notice that your key fob is no longer working as it should, it might be time to replace the battery. You can typically purchase replacement batteries from any chain drug store or in the parts department of your automobile dealership. Some manufacturers offer an extra battery with your car when you buy it. First, you'll need to find out what type of battery is used in your key fob. This information is typically found on the website of the manufacturer or by checking the key fob. Generally, the most common battery that is used in key fobs is a button cell type that is similar to the ones used in remote controls and watches. These batteries are available at Walgreens, Energizer and other stores for less than $5 per box of two. Once you are aware of the type of battery your key fob is using you can open it up and take out the old battery. You can open most key fobs by using your fingers or a flat tool like a screwdriver at the seam or notch where they connect. After the key fob has been opened, the battery will pop out. It is then possible to replace it with the same orientation. The majority of key fobs are powered by CR2032 3V batteries, which are available at many stores that sell AAA and AA batteries. You can snap the two halves back together after inserting the new battery, and then test the key fob to ensure that all buttons work properly. You can verify that everything is working properly by pressing the lock and unlock buttons on the key fob, while pointing it toward your vehicle. If your vehicle still does not respond to the keyfob, you may have to reset the fob to establish an internet connection. It's an easy procedure and requires the use of a phone or other device to do so. Reprogram the Key Fob If your key fob won't work and you believe it's time to replace it, it may not need an entirely new battery, but instead the old one needs to be reset. This procedure is different for every car and the best option is to read the owner's manual (usually accessible in PDF format on the automaker's website) or search YouTube for videos on how to go about this. Modern vehicles require a special procedure to put the vehicle in 'programming mode,' which is usually done by pressing the power button on the driver's side door or ignition several times while pressing a button on the fob within a specified time. The fob transmits its unique digital identification code to the vehicle, and then saves it. Once the fob is programmed, it will behave as a normal key. Reprogramming a keyfob erases any previous keyfobs. Therefore, if you want to keep other fobs, they must be carefully and swiftly reprogrammed after the first one. Sometimes you can find replacement batteries for key fobs for cars in hardware stores, big retailers, or even on the internet. You will need to know the make and model before you purchase a fob because it may be difficult to locate the correct battery. A CR editor found an battery for her key fob but it was from a different vehicle. This meant that, while she could start the car and unlock the doors, she was not able to lower the windows. Fortunately, the dealer can help in this situation in this case, since they have the tools needed to reprogram a fob into specific cars. Dealers are required to perform this procedure on some European cars such as Audi and BMW because they have specialized security features that can only be reset by the manufacturer. Other dealers we spoke to, including those at Toyota and Lexus, were willing to reprogramme an original fob so they knew the exact model and make of the vehicle you are driving. Replace the Button If you've tried changing the battery, reprogramming your key fob, and still can't start your car it might be time to replace the button on the key. The car key button gets many uses and jerking over time and may get stuck or damaged. Every time you press the button on your key fob an individual code is transmitted in a sequence which the receiver inside the vehicle is able to recognize. If you attempt to operate your vehicle from a distance, it may not recognize you. It could lock the doors or shut off the engine. You can purchase replacement buttons online or at several local hardware stores. It is simple to install buttons and they are very easy to open. Contact an Auto Locksmith If you're experiencing a problem with the car key button, it may be time to call in the experts. Auto locksmiths are experts in the repair of electronic keys and locks. These specialists have the knowledge and tools needed to identify and repair a variety of issues with your key fob, including replacing batteries and changing the programming. They are equipped with the knowledge and skills to handle more complex tasks, like repairing a broken key or cutting a replacement key. One of the most common reasons for a car's key button to stop working is that the switch inside it has worn out. Overuse and exposure to elements are the primary reasons. The switch is typically made of a tough plastic material and has a variety of switches on its surface. mobile key repair g28carkeys.co.uk of these switches is responsible for activating the particular function that you use the key for. As the switch gets older over time, it becomes harder to activate each of these functions. You will have to apply more pressure to the switch to activate it. This can further damage the switch and decrease its lifespan. Replace the battery in your key fob. Many models of car use lithium-ion button or coin batteries, which you can easily buy at supermarkets, pharmacies, and home improvement stores. Your key fob will function after you have replaced the battery. If the problem continues, it may be that the contacts on your key fob's device have worn out. The contacts are made of rubber, and covered by an electrically conducting film that can wear out. They are exposed to elements as you use the keypad and are constantly exposed to moisture and dirt. They'll eventually wear out to the point where they're unable to contact with the circuit board or sensor beneath the keypad. You can attempt to get the key fob replaced by visiting an auto dealer, but it can be costly and can take an extended time. The other option is to call a local car locksmith who can repair your key fob and help you save money.