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Car Key Fob Repair – How to Get Back on the Road Even If Your Keyless Entry isn't Working Over time, key fobs can have issues, such as a malfunction. Certain issues may require professional attention, but most can be resolved at home. The battery replacement is usually the first step. Most fobs utilize batteries with a flat design that are easy to find at hardware stores or auto parts stores. Dead Battery If a key fob battery is dead, it could be a huge inconvenience especially if you're far from home. There are methods to get your vehicle back on the road if you're keyless entry system isn't working. One of the first things to check is to determine if the buttons on your key fob function. If they do, then the issue could be with your car's locks instead of the fob. If your keys don't work try looking for a mechanical key slot located in the trim of your door handle or in another location on the car (consult your owner's manual). Insert the mechanical key and try again. If this fails there are some cars that have an app that can open doors remotely. For example the FordPass Connect app, myChevrolet mobile app, and myMazda app allow owners to unlock the doors using smartphones. However, these apps are subject to an annual cost. Also, make sure that your key fob doesn't drain the batteries of your car by being plugged into them. A dead fob will drain your battery quickly particularly if it's used to control the TV or phone while you're watching. The key fob should be held right to the car's start button may cause an ignition key fob with an empty battery. This simple fix could save you from a trip to your dealer or to certain Interstate All Battery Centers. If your key fob won't work try testing it in a vehicle with an electronic starter button. If it's not working, the fob battery probably needs replacement. It's a good idea to keep an extra key fob in your bag or purse. Damaged Buttons It's possible that your key fob is damaged and has a button. Your key fob contains a circuit with “contact pads” which are covered by an electrically conductive film. The film wears off over time. This wear can cause your device to respond more slowly, or even not at all. The good news is that the pad on the car key fob can be replaced easily, and can be done so using a simple flathead screwdriver. If the case is damaged or badly damaged it may be difficult to open. It is necessary to take it to an auto repair shop to have the fob repaired. It's not common for a key fob be thrown around, trampled upon or exposed to water. All of these events can cause physical damage to keys, such as bending or snapping them. It could also affect the internals of your fob, which could lead to a malfunction. This is why it's a good idea to carry a spare key fob inside your wallet or pocket in case you break the one you already have. If the buttons on your key fob aren't working to the extent they should, you should first make sure the battery is in good condition. Key fobs do not require an electronic device. They utilize the same two-dollar battery that is used in hearing aids and watches. The batteries are available at drug, hardware, and online stores. If the battery is fine it's possible that the buttons are dirty or worn out and can be easily cleaned using a moist cloth to wipe them down. If they're still not responding, test a different key fob to determine if the issue is with yours or with a particular type of car key fob. If the other fob functions, it's likely that the key fob you have needs to be reset or even replaced completely. Reprogramming The secret world of car key fobs is more complicated than the myths suggest. The basic fobs function using radio frequency signals that are assigned to specific cars. The fobs must be programmed correctly to unlock and start the vehicle. Reprogramming a key fob not as simple as pressing several keys. It's usually handled by the dealer. The process of reprogramming a fob is based on the model and model year of your car It is therefore essential to read the owner's manual to get step-by-step instructions. Certain manufacturers, such as Mercedes have proprietary technology that only dealers are capable of creating a new key fob and then resync it to your vehicle. However, some independent shops can offer this service as well, so be sure to look up reviews and prices prior to selecting the shop. Certain car models erase other fobs when they are changed. This means that you'll have to have any additional fobs programmed by professionals. This is a costly proposition, especially if you're down to one functioning fob. Even in the event that the mechanical key will not work to start the car, it's a good idea to have a backup option that can open the doors and trunk. Be prepared for a difficult experience if you choose to reprogram your fob by yourself. You'll be disappointed with the numerous guides on the internet that promise success. Many of these guides were written by individuals with no experience and are based on unsubstantiated statements. Some of these guides claim that you can easily program your car's key fob with just a few clicks. This is misleading. The battery is usually held in place with clips made of plastic, which is easily removed. However the circuit board houses the battery, and you'll need to pry the battery out using the aid of a tool. Once you've got inside, you'll be able locate the button cell battery, which is typically a tiny watch battery that can be found in most pharmacies or home improvement stores. Replacing the battery is usually simple, and it's always worthwhile to try first before replacing the entire unit. car key remote repair If a car key fob is damaged or isn't functioning it is crucial to know that there are a few ways to remedy the problem. It is possible to fix the problem quickly by replacing the battery or programming your key fob. However, a more extensive repair may be required. A spare fob can be helpful in the event that one is lost or stolen. Modern key fobs are more expensive and harder to replace since they have a physical key along with electronic. Some “smart” fobs also include a remote starter built-in. As such, it's important to know that it could take up to an hour to have a new key fob cut and programmed for your vehicle. Fobs communicate with the car receiver by using a small radio transmitter on the circuit board. By pressing a button the transmitter transmits an RF signal specific to the car's receiver. The receiver receives the signal and validates it against preprogrammed codes. This allows the driver to start the car from a distance without having to put the key in the ignition. If the buttons on your key fob are not responding or working intermittently, they may have been damaged by water. It is possible to repair the fob if you take it apart and check for broken or non-responsive buttons. If this doesn't fix the problem, you can try reprogramming the fob, or buying another one. It is best to check with an auto dealer in your area or a locksmith prior to purchasing a replacement keyfob to ensure that it's compatible with the security system of your vehicle. You can find aftermarket fobs less expensive, but it's crucial to look up the brands and read reviews before attempting to program them. Certain fobs can be modified by an accredited locksmith, but other models require programming equipment that only a car technician or dealer can utilize.