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Car Key Fob Repair – How to Get Back on the Road Even If Your Keyless Entry isn't Working Key fobs can have issues with time, like an inability to function. While some issues may require professional attention, many can be resolved at home. The first step is typically to change the battery. key repair service of fobs have flat watches that are easy to find in hardware stores or auto parts stores. Dead Battery It can be an incredibly problem when a key fob's battery is dead. This is especially true when you are far from home. There are methods to get your car back on the road if you're keyless entry system isn't working. The first thing to check is if the buttons on the fob still work. If they don't it could be a problem with the locks on your car. If your keys don't work you need to look for a mechanical key slot located in your door handle trim or in another location on the vehicle (consult your owner's manual). Insert the mechanical key, and try again. If this fails to unlock the door, some vehicles have an application that lets you unlock the door remotely. For instance, the FordPass Connect app, myChevrolet mobile app and myMazda app allow owners to open the doors using smartphones. These apps are charged monthly subscription fees. Also, make sure that your key fob does not drain the batteries of your car by resting on them. A dead key fob can drain your battery quickly especially if it's used to control the TV or phone while you're watching. The key fob should be held right towards the start button can sometimes start a key fob with a low battery. This simple fix can save you from a trip to your dealer or certain Interstate All Battery Centers. You can also find out whether your key fob actually dead by testing it in another vehicle that has the push-button ignition. If it doesn't, it could be necessary to replace the battery on your fob. This is why it's a good idea keep a spare key fob inside a purse or backpack. Damaged Buttons It's possible that the key fob is damaged and has a button. Your key fob is equipped with a circuit with “contact pads” which are covered by an electrically conductor film. The film wears away over time. This wear can cause your fob to react slower, or not respond at all. The good news is that the contact pad on the key fob of a car can be replaced easily, and is done by using an easy flathead screwdriver. However, if the key fob is badly damaged or smashed in any way, it may be more difficult to open the case, and you'll need to take the fob to an auto repair shop to be repaired. It's not unusual for a key fob to being dropped, trampled or even exposed to water. All of these can cause physical damage to keys, such as bending or snapping them. This can also affect the internals of your fob and could cause an issue. It is a good idea, that's why you should always carry an additional fob in your wallet or pocket in the event that the one you currently have fails. Examine the battery first to determine to determine if the buttons on your key fob aren't working as they should. Keep in mind that key fobs aren't a special kind of electronic device – the majority of them use the same two-dollar batteries that are used in hearing aids and watches and are accessible at hardware stores, drug stores, and on the internet. If the battery is in good condition, it's likely that the buttons are just dirty or worn out, and can be easily cleaned using a moist cloth to clean them. If the buttons still don't work, you could try an alternative car key fob. This will help you determine if the problem is yours or a particular model. If the other fob functions then it's likely your key fob has to be reprogrammed, or possibly replaced entirely. Reprogramming The hidden world of fobs for car keys is more complex than the myths that surround it suggest. The basic fobs operate using radio frequency signals that are assigned to specific vehicles. The fobs need to be properly programmed in order for them to be able to unlock and start the vehicle. Unfortunately, reprogramming a fob isn't as easy as pressing a few buttons and with only a few exceptions it needs to be handled by a dealer. The procedure of reprogramming a fob depends on the make and model year of the car you own It is therefore essential to refer to the owner's manual for step-by-step instructions. Some manufacturers, like Mercedes, use proprietary technologies that only dealers are capable of creating a brand new key fob and resync it to your vehicle. However certain independent shops provide this service as well and you should review reviews and prices prior to choosing a shop. Certain car models wipe out all other fobs when they're changed, so you'll need to get any additional fobs programmed professionally. This can be expensive particularly if your fob isn't working anymore. Even in the event that the mechanical key will not work to start your vehicle, it's a good idea to have a backup that can open the doors and trunk. Be prepared for a frustrating experience if you opt to reprogram your fob by yourself. There are numerous guides available on the internet that promise success however, you're likely to be disappointed. A lot of these guides were written by individuals with no experience and are based on unsubstantiated assertions. Some of them even state that you can program your own car key fob in only a few clicks, which is very false. The battery is usually secured with clips made of plastic, which can be easily removed. However, the circuit board contains the battery, so you will need to carefully remove the battery using a tool. Once you've gotten inside, you should be able to locate the button cell battery which is typically a small watch battery that can be purchased in most pharmacies or at home improvement stores. Replacing the battery is usually a straightforward procedure, and it's always a good idea to test this first before replacing the entire unit. Replacement There are several methods to fix a broken or non-functioning car key fob. It could be possible to resolve the issue quickly by replacing the battery or reprogramming the key fob. However, a more extensive repair may be required. It can also be helpful to have a spare key fob in case one gets lost or stolen. Modern key fobs are more expensive and difficult to replace because they contain an actual key and electronic. Certain “smart” fobs also include a remote starter built-in. It's important to know that it can take an hour or more to cut and program a replacement fob for your vehicle. Fobs communicate with the car receiver using a tiny radio transmitter on circuit boards. Pressing the button triggers the transmitter, which transmits a unique RF signal to the car's receiver. The receiver detects and compares the signal with preprogrammed codes. This allows a driver to start the car from a distance without the need to insert the ignition key in. If your key fob buttons aren't responding or working in a sporadic manner, they may have been damaged by water. You can fix the fob by taking it apart and examine for damaged or non-responsive buttons. If this doesn't solve the issue, try reprogramming your fob or getting an entirely new one. It is recommended to consult a local auto dealer or a locksmith prior purchasing a replacement keyfob online to ensure that it's compatible with the security system of your vehicle. The fobs from the aftermarket can be less expensive but you should study the brands and read reviews prior to trying to program them yourself. While some fobs can be replaced by a reputable locksmith, others require special programming equipment that can only be used by a car dealer or auto technician.