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Key Fob Replacement and Repair Modern car key fobs are utilized a great deal and are often misused. In many cases, a simple replacement or repair is all that's required to bring them back into working in good condition. The majority of fobs are made with flat watch-style batteries that can be found in auto parts stores. But before you call an expert, you can try a few DIY solutions! Dead Key Fob Batteries The battery of the key fob powers the remote you have in your car and in push-to start cars it will start your engine. Therefore, it is critical to maintain an active, healthy battery. When you're out and about and your key fob is not working, it can cause a lot of trouble. The good news is that a simple, inexpensive replacement can fix it quickly. The loss of range and signal strength are among the most commonly observed indications that a battery on a keyfob is dying. You might also 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 parts section of a major retailer or online. Typically, they're CR2032 or CR2025 batteries that are available in packs of two or more. Check out the owner's manual before you purchase the correct battery. Some cars require a particular size or kind of battery that's not always available at big-box stores So, make sure you know the specifications prior to you buy. The battery is usually found in the back of the key fob. It is removed using an abrasive screwdriver with a flat blade by opening the case. The battery will look similar to tiny coins, and it will be identified according to its size. Make sure to note the way the plus and minus symbols are positioned to ensure that the new battery is placed correctly. After the battery has been replaced then 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 may be deprogrammed. In this instance it is likely that a locksmith will be required to assist you. This will cost more than just replacing the key fob's battery. Whether your fob battery is failing or you're experiencing other issues with your key fob An experienced mechanic like one from YourMechanic can inspect and repair it to get you back on the road. Make sure to look over the range of services we offer in your region and book an appointment today! Weak car remote key repair If your key fob does not respond to the buttons of the remote, it could indicate that the signaling isn't functioning properly. Your car and key fob rely on radio signals to communicate, therefore weak or inconsistant signals can cause poor performance and range. One of the first things you should examine is whether your fob's battery is insufficient since this can greatly affect the sensitivity of your signal. Resetting the settings of the fob can also aid in restoring a consistent response. The procedure varies from vehicle to vehicle, so the owner's manual or call to the manufacturer's help line is likely to be the best resource here. Other factors can cause weak fob signals, including interference from other devices that operate on the same frequency as your key fob. Other key fobs as well as wireless communication devices may interfere with the RF (radio-frequency) signals your key fob sends to connect to the receiver of your vehicle. Physical damage to your keyfob can also affect the transmission of RF signal, which can result in lower performance and less range. A blown fuse, broken or cracked button or a bent case of the fob could all affect the signal transmission and cause the remote to not to function properly. There are a few simple steps you can take to try and solve the issue of weak fob signals such as resetting the fob's settings, or replacing the battery. If your fob is old and worn out, it might be the right time to replace it. Don't forget to remember that if you have an extra key fob which is part of your vehicle, this can be used in place of the primary remote if it begins to fail. It's worth trying this option to determine if it resolves the issue prior to investing in an entirely new one. If not, this might be the best time to contact an experienced auto locksmith. They can identify the issue and recommend the best course of action. Physical Damage It's not uncommon for key fobs to encounter issues from time-to-time. Most of these issues are not complex or severe and can be fixed with just a few steps. It's important to keep spare batteries or another fob available in case one of your keys ever stops working. A dead battery is the main cause of a car keyfob not working. These tiny devices are powered by lithium-ion buttons or coin cell batteries. These are easily replaced and can be found at most pharmacies, grocery stores and places which sell electronic items. You can open your fob's shell with a flat head screwdriver and gently remove the existing battery. Ensure that it is not damaged or loose and then simply pop in the new battery. Most fobs require batteries with CR2032 capacity. However, yours may need a different type. When your fob loses its pairing, it can stop responding to buttons. This could be due to various reasons, such as changing the batteries. However it is possible to fix the issue with an auto Locksmith or local dealership is usually able to fix it. If none of the methods above work, you can try this method: disconnect the battery from the car and the fob for a few minutes and then connect them in reverse order. This could trigger a restart within the system and in some cases this will fix the issue without requiring any of the other steps. Keep the fob away from water or other sources of harm while you're experimenting. The fob is quite durable, but it's important to treat it with care if you want it to last as long as it can. If the above troubleshooting tips don't help, it might be time to replace your key fob. If it has been dropped, trampled on or exposed to harsh environmental conditions, it may not be able to be repaired and may require an upgrade. Shop around to find the most competitive price. Lost Fob Even with the best of care, it's a fact of the road that car key fobs can sometimes cease to function. It can be expensive to replace yours if you lose it and especially in the event that you don't have an alternative. “You may end up paying between $50 and $100 for a replacement, and having it programmed by a dealer, plus a mechanical backup that will cost you another $100,” says Mel Yu an automotive analyst at Consumer Reports. A weak battery is one of the most frequent reasons for a keyfob's device to cease to function. You can try changing the battery yourself when you know how, or get instructions from your owner's manual. If that doesn't work, you'll need to call an expert. A locksmith will be able to help you find the lost fob or have it replaced. A locksmith can probably tell you why your fob stopped functioning in the first in the first place. If your car is old and does not come with smart technology however, you can save money by recording the key's number plate on your mechanical backup key. It's usually hidden behind a decorative keychain. If you're looking to change the programming of the key fob of your car, the locksmith can perform the task more easily. If the key fob you have is a smart key of the present, you'll have to visit a car dealership or locksmith to deprogram it before getting a new one created, which can be more expensive than replacing it. That's because modern key fobs use rolling-code encryption to stop thieves from gaining access to the car. And that means locksmiths need an exclusive programing tool that only the vehicle manufacturer has, which adds to the overall cost. In most instances, you'll need to pay for the entire service at once, including the cost of programming the new key fob. Depending on the vehicle it could cost anywhere from a mere $20 at some shops to $200 or more at a dealership for cars.