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Key Fob Replacement and Repair The key fobs in modern cars are very efficient and are subject to a lot of abuse. Sometimes, an easy repair or replacement is all that's needed to get them working again. Most fobs run on a flat watch-style battery, which is easily found in auto parts and hardware stores. Before calling in an expert, try some of the DIY fixes. Dead Key Fob Batteries The key fob battery powers the remote feature in your car. It also, in conjunction with push-to start vehicles, permits it to start your engine. As a result, it is crucial to maintain an active, healthy battery. A dead key fob is an issue for anyone traveling. A simple, affordable replacement can fix the issue quickly. The loss of range and signal strength are among the most common indications that a battery on a keyfob is failing. It is also possible to find that the buttons on your fob do not work or require extra effort to be activated. A new key fob is available in the auto part section of a big retailer or on the internet. The majority of these batteries are CR2032 and CR2025 and are sold in packs of 2 or more. Make sure to consult your owner's manual prior to you purchase the correct battery. Certain vehicles require a particular size or type of battery, which is not always available at big-box stores. Make sure to verify before you buy. Typically the battery is situated on the back of your key fob. It can be removed by prying the case open with a flat-blade screwdriver. It is likely to look like a small coin and be marked with the battery's size. Be sure to note which way the plus and minus symbols are positioned to ensure that the new battery is placed correctly. After the battery has been replaced and the fob is closed, gently snap the two pieces of the fob back together, and test the buttons. If your key fob doesn't work after replacing the battery, it could be deprogrammed. In this case it is likely that a locksmith will be required to assist you. This will cost more than replacing the battery in the key fob. Our skilled mechanics at YourMechanic can repair your key fob if it is damaged or if the battery has died. Make sure you check out the range of services we offer in your area and schedule an appointment now! Weak Signals If you notice that your key fob isn't responding to buttons on the remote, this can be a sign of a problem with the signaling. Radio signals are used to communicate between your car and the key fob. Weak or inconsistent radio signals can result in poor performance and a limited range. One of the first things you should check is whether or not your fob's battery is low because this could significantly affect the sensitivity of your signal. Resetting the settings on the fob could aid in restoring a more regular response. The process will vary from vehicle to vehicle. Your owner's guide or a phone call to your manufacturer's support line is your best resource. Other factors can contribute to weak fob signals, including interference from other devices that operate on the same frequency as your key fob. Power lines and other key fobs wireless communication devices, and even cellular networks can disrupt the RF (radio frequency) signals that your key fob utilizes to connect to the receiver in your vehicle. Damage to your keyfob's physical structure can also affect the transmission of an RF signal, which can result in lower performance and less range. A blown fuses, a damaged or cracked button, or a bent case on the fob may affect the transmission of signals and cause the remote to respond. You can attempt to solve the issue by resetting the fob's settings, or by replacing the battery. If your fob is old and worn, it could be the right time to replace it. Don't forget to utilize the spare remote that came with your car if your primary remote begins to fail. It's worth trying this option to see if it solves the issue prior to investing in a new one. If not, this might be the right time to consult a professional auto locksmith. They will be able to diagnose the problem and suggest the best solution. Physical Damage It's not uncommon for key fobs to encounter issues from time to time. Luckily, the majority of these problems are not difficult or complicated and can be resolved with some simple steps. It's also a good idea to have spare batteries or even an additional fob in case one of your keys ever fails to work. The most frequent reason for the car key fob not working is the battery is dead. These tiny devices are powered by lithium-ion buttons or coin cell batteries. These are easily replaced and are available in most pharmacies, grocery stores and shops that sell electronic products. You can open the case of the fob using an screwdriver that is flat, and gently pry out the battery you have. Replace the battery, ensuring that it's not damaged or loose. Most fobs require CR2032 batteries. However, yours might require a different type. Your fob might also stop responding to the buttons if it loses its connection with your vehicle. This could be due to various reasons including changing the batteries. However, an auto Locksmith or a local dealer is usually able to fix it. If none of the solutions above work, you can try this trick: disconnect the battery from the car and fob for a short period of time, then reconnect the two in a reverse order. This may cause the system to restart and in certain cases, this will fix the issue without additional steps. While you're experimenting with the fob, be sure to keep it clear of water and other dangers. The fob is a durable device but you need to take care with it to make it last for as long as you can. If none of the troubleshooting procedures above work you, it may be necessary to replace your key fob. If it's been thrown and trampled or exposed to harsh conditions, it might not be repairable and may require a replacement. Look around for G28 Car Keys . Lost Fob Even with the best of care, it's a fact of life that car key fobs will sometimes fail to function. It's expensive to replace yours in the event that you lose it, especially if you do not have an alternative. “You may end up paying $50 – $100 for a replacement and getting it programmed by the dealer, as well as an electronic backup that could cost another $100,” says Mel Yu an automotive analyst at Consumer Reports. A weak battery is among the most common causes for a keyfob's cease to function. Try changing the battery on your own if you know how or get instructions from your owner's manual. If that doesn't work, you'll have to call an expert. A locksmith will be in a position to assist you in finding your lost fob or get it replaced. They will also likely have a good idea of the reason your fob was not working in the first place. If your car is old and doesn't come with smart technology however, you can save money by recording the key's number plate from your mechanical backup key. It's usually hidden behind an ornamental keychain. This will make it easier for a locksmith to reprogram a new key fob for your car in the event that you need to do so. If the key fob you have is a smart key of the present it will require an auto dealer or locksmith to deprogram it before getting an entirely new one which is more expensive than simply replacing it. Modern key fobs are protected by encryption using rolling-codes, which prevents thieves from gaining access to the car. This means that the locksmith must be equipped with a specific software program that is available only to the car manufacturer, which increases the cost. In the majority of cases, the whole service will be charged at the same time. This includes all costs for reprogramming a new keyfob. Depending on the type of vehicle it could cost anywhere from a mere $20 at some shops to $200 or more at a car dealership.