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Car Key Button Repair Car key buttons endure a lot of abuse, especially if used frequently. Over time, they can become faulty. There are a few simple solutions that will get your keys back to working. However, these methods have risks when it comes to changing batteries or tampering with your key fob. If you're not confident with these methods, it's best to consult an expert 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 from any chain drug store or the parts department at your car dealership. Some manufacturers even include a spare key fob battery in the packaging when you purchase a car from them. It is first necessary to find out what type of battery is used in your key fob. This information is typically found on the site of the manufacturer or by checking the key fob. The most commonly used battery used in a key fob is a button cell similar to the ones used in watches and remote controls. These kinds of batteries are commonly sold at places like Walgreens and Energizer, and are available at less than $5 for a pack of two. Once you know what kind of battery your key fob uses then you can remove it and take out the old battery. You can open most key fobs using your fingers or a flat tool, like a screwdriver at the seam or notch where they connect. After the fob has been opened, the battery should come out, and you can then put in the new one in the same orientation as the old one. Most key fobs use CR2032 3V batteries, which are readily accessible at a variety of stores that sell AAA and AA batteries. You can snap the two halves back together after you have inserted the new battery and then 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 at your vehicle will allow you to determine if everything is functioning exactly as it should. If car key repairs is not responding to the key fob, it could be necessary to reprogram the key fob to establish an electronic connection between the two. This is a fairly easy process that requires your phone or another device. Reprogram your key fob If your key fob does not function and you believe it's time to replace it It may not require a new battery, but rather the old one has to be changed. This procedure is different for each vehicle. To find out how to do it, consult your owner's manual. It's usually available in PDF format on the automaker's website. You can also search YouTube for videos. In most modern vehicles, a particular procedure is required to put the vehicle into 'programming mode'. This typically involves pressing the power button multiple times on the driver's door or ignition, while simultaneously pressing a button on a fob in a time-specific period. This is how the fob communicates its digital identity code to the car, which saves it in its memory. After the fob is programmed, it can perform the same way as a normal key. Reprogramming a keyfob will erase any previous keyfobs. Therefore, if you'd like to keep other fobs, they should be reprogrammed with care and speed following the initial one. Sometimes you can find replacement batteries for car key fobs at hardware stores, large retailers, or even online. However, you need to know the make and model of your vehicle prior to purchasing a battery for your fob because the right type can be difficult to locate. A CR editor once found an appropriate battery for the key fob she used however it was for a different vehicle. This meant that she could start her car and unlock the door, but she was unable to lower the windows. Fortunately, dealers can help in this situation, as most of them have the necessary equipment to reprogram a fob for specific cars. Some European automobiles, like those made by Audi and BMW, will usually require you to go to a dealer for this service due to the fact that they have specific security features that can only be reset by the manufacturer. Other dealers we spoke with like those from Toyota and Lexus were willing to reprogramme a replacement fob as long as you knew the exact make and model of your car. Replace the Button If you have tried changing the battery and reprogramming the key fob but can't start your car it might be time to replace the button on the key. Your car key button receives many uses and jostling over the years and can sometimes become stuck or broken. Each press of the button on your key fob emits a different code that is recognised by the receiver inside the vehicle. If you attempt to operate your vehicle from a distance and not using the correct code could cause it not to recognise you and shut the doors or shut off the engine. You can purchase replacement buttons online or in numerous local hardware stores. It is easy to install them and they are very simple to open. Contact an Auto Locksmith It may be time to consult the experts if you are experiencing problems with the key button on your car. Auto locksmiths are experts in the repair of electronic keys and locks. They have the tools and expertise to identify and fix issues with your key fob. This includes replacing batteries and changing their programming. They also have the skills and experience to handle more complex tasks, such as repairing a broken button or even cutting a replacement key. One of the most common reasons for a car key switch to stop working is that the switch inside it has worn out. This is due to overuse and exposure to elements. The switch is made from a hard plastic and has many switches on its surface. Each of these switches is responsible for activating the particular function that you use the key for. As the switch ages over time, it becomes more difficult to turn on each of these functions. You will have to exert more pressure on the switch to get it to work. This can result in more damage to the switch, thereby diminishing its life span. Replace the battery in your key fob. Many models of car use lithium-ion button or coin batteries which you can find at pharmacies, supermarkets, and home improvement stores. Your key fob should now function after you have replaced the battery. If the issue persists, it could be because the contacts on your key fob have worn out. The contacts are made of rubber and coated with an electricity conducting film, which can wear out over time. When you use the key, they are constantly exposed to moisture and dust. Over time, they get worn down until they are no longer in contact with the circuit board or sensor underneath the keypad. The dealership can replace your key fob, however it can be expensive and take a long time. Another option is to call a local locksmith for your car who can repair your key fob and help you save money.