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Car Key Button Repair Car key buttons endure lots of abuse, especially if used frequently. In time, they could become faulty. There are a few easy solutions that will get your keys back in working order. However, these methods have the potential for dangers when changing batteries or tampering with the key fob. If you're not confident doing these things yourself, it's recommended that you contact a professional auto locksmith. Change the Battery It's possible to replace the battery in your key fob if it isn't working as it should. You can typically purchase replacement batteries at any national chain drug store, or the parts department of your automobile dealership. Some manufacturers include an extra battery with your vehicle when you purchase it. The first thing you'll have to do is determine what battery your key fob uses. This information is typically found on the website of the manufacturer or by looking at the key fob. The most common type of battery in the keyfob is the button cell similar to those found in remotes and watches. These batteries are available at Walgreens, Energizer and other stores for less than $5 per pack of two. You can take the old battery off your key fob once you know which type of battery it uses. It is possible to open most key fobs using your fingers or a flat tool, like a screwdriver, at the seam or notch at which they connect. Once the fob is opened, the battery should come out, and you can then insert the new one in the same direction that the old one. Many key fobs are powered by CR2032 batteries. These batteries can be found at retailers who sell AAA or AA batteries. You can join the two halves together after inserting the new battery and test the key fob to ensure that all buttons are functioning correctly. Pressing the locks and unlock buttons on the key fob while pointing it towards your vehicle will help you determine if everything is working exactly as it should. If your car is not responding to the key fob, it may be necessary to reprogram your key fob and re-establish an electronic connection between the two. This is a fairly easy process that requires your phone or another device. Reprogram the Key Fob If you're having issues with your key fob, and you think that it's time to get a new one It may not be necessary to replace it. Instead, the old battery may need to be reprogrammed. This procedure differs for each car. To learn how to do it go through the owner's manual. It's typically available in PDF format on the automaker website. G28CarKeys can also search YouTube for videos. Most modern vehicles require a special procedure to put the vehicle into 'programming mode,' which usually involves pressing the power button on the driver's side door or ignition a few times while pressing a button on the fob within a specified time. This is how the fob transmits its digital identity code to the vehicle, and it stores it in its memory. The fob functions as normal keys once it is programmed. It is important to know that reprogramming a key fob will wipe out any other key fobs that have been previously programmed. 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 at hardware stores, major retailers, or even on the internet. It is important to know your car's model and make prior to deciding to purchase a fob because it can be difficult to locate the right battery. A CR editor discovered a battery for her key fob, however, it came from an entirely different vehicle. This meant she was able to start her car and open the door, but she couldn't lower the windows. Fortunately, dealers can help in this situation, as most of them have the tools needed to reprogram a fob to specific cars. Dealers are required to perform this procedure on some European automobiles like Audi and BMW because they come with specialized security features that can only be reset in the factory. Other dealers we spoke with such as those from Toyota and Lexus were willing to attempt reprogramming an original fob so long as you knew the exact model and make of the car you own. Replace the Button If you've tried changing the battery and reprogramming the key fob and still cannot start your car, it could be time to replace the button on the key. The button on the key of your car is subject to a lot use and jolting and may become stuck or damaged over time. Every time you press the button on your key fob the unique code is sent in a sequence that the vehicle's receiver is able to recognize. If you attempt to operate your vehicle from some distance, it might not recognise you. It could shut the doors or turn off the engine. You can purchase replacement buttons online or in many local hardware stores. It is easy to install them and they are also very easy to open. Contact an Auto Locksmith If you're experiencing issues with your car key, it may be time to contact the experts. Auto locksmiths are experts in the repair of electronic keys and locks. These specialists have the tools and know-how to diagnose and fix various issues with your key fob. This includes replacing batteries and changing the programming. They have the expertise and expertise to tackle more complex tasks, like fixing a broken key or cutting an alternative key. The switch in the button for the car key is often worn out. This is due to excessive use and exposure to elements. The switch is typically constructed of a tough plastic material and it has several different switches on its surface. Each switch activates the function for which you are using the key. As the switch age it becomes harder to activate these functions. This means that you will need to press down harder on the switch in order to make it work. This could further damage the switch and reduce its lifespan. Replace the battery in your key fob. You can easily find lithium-ion button or coin cell batteries at pharmacies, supermarkets and home improvement stores. Your key fob will work once you have replaced the battery. If the problem persists it may be that the contacts on your key fob have been worn out. The contacts are made of rubber and are covered with an electrically conducting film that can wear out. When you use the key, they are continuously exposed to moisture and dust. They will eventually wear to the point where they are unable to contact with the circuit board or the sensor underneath the keypad. You can try to have the key fob replaced by visiting an auto dealer, but this can be expensive and may take quite a while. The other option is to contact a local car locksmith, who will be able to repair your key fob and help you save money.