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Key Fob Replacement For Car Batteries Key fobs allow you to lock and unlock your car doors without the use of a metal key. Some feature buttons that activate the trunk alarm or alarm and some even start your car as well. However, these handy devices could get into problems. Replacing them is more expensive than cutting the traditional key. Battery The key fob has an internal battery that powers the electronics inside. A dead battery can stop your key fob from unlocking the car or triggering alarms when you open the trunk or the door. Fortunately, replacing the battery is relatively simple. Open the key fob with the small screwdriver to remove the old battery. Replace the battery that was used with a brand new one and ensure the orientation is identical to the original. Certain key fob batteries can last for years without having to be replaced. Therefore, regular maintenance can extend the life of your batteries. You should have an extra battery in your car in case the key fob battery is not working. Check your car's owner's guide for recommended intervals for replacement. A new battery can keep a typical key fob operating at its best for seven years. If car key fob replacements have a newer key fob with advanced features, you may need to change the battery more often. Reprogramming old key fobs is a possibility for a fraction of the price of a brand new unit. You can reprogram older key fobs by visiting an automotive locksmith or with software that is available from aftermarket providers and parts stores. However, most newer fobs require a visit at the dealer for reprogramming, as they contain complex security systems that can only be altered by professionals with specialized training. Certain key fobs have been laser cut to protect them from theft. This makes them more difficult to duplicate. Some key fobs have a shank which tucks into the fob when not in use like a switchblade. This helps to protect them from theft. Even a basic device can be expensive to replace when the battery goes out or it is damaged beyond repair. Verify the warranty on your car to determine whether it's the standard or extended warranty. Your insurance company may also provide roadside assistance that covers replacement of the key fob. You can also save by keeping spare keys and being aware of the way you use your car's fob and key. Button Issues Although they're a wonderful convenience, key fobs aren't indestructible. They are subject to lots of physical abuse, and also take quite the punishment from the elements, especially when exposed to rain or snow. Water can cause corrosion or short circuits in a key fob. Key fob issues for cars are relatively simple to solve. If it's a battery replacement or cleaning the buttons or reprogramming it to sync with your car, there are many simple methods to bring the fob back to life. These steps may be covered by your automobile warranty or insurance. Key Fobs can become faulty in an instant The problems with buttons that plague the majority of key fobs are usually caused by moisture, dust or worn-out contactors. Fortunately, most fobs have buttons that are simple to clean and typically require a little cleaning to bring them back to their original functionality. You can clean the key fob by using an abrasive cloth that is lint-free and some alcohol, or another degreaser. After cleaning the key fob dry, then reassemble it. Some newer vehicles allow you to remotely open the windows with the press of a key fob. You might be able to do the same thing with your sunroof, powerliftgate or other features depending on the model and make. You can be sure that if you've ever used these features before your key fob won't no longer be waterproof. The good news is that you can find and purchase the replacement key fob online or at your local locksmith. You can also search for the key fob's part number on the internet, or consult your car's owner manual for more details. Certain fobs require a specific procedure for reprogramming which is why it's recommended to do this at the dealership or at an auto-parts shop that is focused on the manufacturer of your vehicle. This isn't typically required for older vehicles that just open the doors, but is a good idea for modern models. It's a quick and less expensive option than buying an entirely new key fob. Programming Modern key fobs come with transponders that connect to the ignition of your car. The key fobs are also equipped with a variety buttons to perform functions such as locking the doors of your car or lowering the window. Inside each fob is a battery which keeps the circuit board in operation. To replace a battery, the fob must be removed from its fob chain and then opened to reveal the screw that holds the circuit board in its place. Remove the screws with a screwdriver that doesn't damage the button panel or the fob. After the battery is removed and replaced, you can replace it with a new one and then reassemble your fob. Some key fobs are programmed by a locksmith, but others need to be programmed by a dealer or locksmith. It is essential to review your owner's manual for whether you can do this at home, as well as read online reviews of any aftermarket products you're considering purchasing. In many instances, it could be possible to save money by buying a less expensive, non-branded version of the same model fob. If you do choose to go with an aftermarket product, you need to know that the new fob may be programmed incorrectly and not work with your car. Many aftermarket products, such as those offered by auto-parts stores as well as online retailers, don't come backed by a manufacturer warranty. A key fob that's not properly programmed to your car could cause a variety of problems. In some cases it may not be able to start your car, while in other cases it might only function with the remote doors locks. In extreme cases the ignition may be damaged. The best way to avoid these issues is to make sure you have at least two key fobs. You'll have backup options in the event that one or more fobs fail. Make sure you've checked your car's bumper-to-bumper or other warranties to determine whether they cover the cost of a key fob replacement or offer partial reimbursement for repairs related to key fobs. Other Problems A key fob can be used to unlock and start your vehicle by pressing a button. The electronic components may malfunction. While it is possible to resolve many of the common issues by yourself, some may require the help of a professional. A drained battery is the most frequent reason for trouble with key fobs. When the battery is low, the key fob will display a warning and make a loud sound. Changing the battery may solve the issue. If the issue continues then reprogramming the key fob might be necessary. Reprogramming involves connecting your key fob with your vehicle. It can be accomplished by a locksmith or an auto dealer. Physical damage to the key fob is another issue that could cause it to stop working. It could be permanently damaged if you accidentally drop it into water or when your child decides to play with it. It can also fail if it is exposed to extreme, sudden shocks. In certain situations, the key fob can become deprogrammed, which can be due to pressing too many buttons while out of range or if you have accidentally disconnected the car battery. In this case you'll have to connect your key fob with your vehicle by using an encrypted code or a special code. A key fob may lose its connection to your vehicle if it's not used regularly. Try pairing a new key fob that's identical to yours, if you have one. If your key fob won't respond in any way, or if certain buttons aren't working it could be due to an old battery or a problem with your internal wiring, or a faulty switch. If your key fob does not work even after checking all these things, you may require replacing it. Key fob replacement for most automobile models and makes is inexpensive and easy. You can avoid expensive repairs or replacements by taking care of your keyfob.