13 Things You Should Know About Key Fob Repair That You Might Not Have Known Key Fob Repair - Replace the Battery

Key fobs last between three and four years. If they begin to display signs of being damaged, you should inspect them to check for damage and replace the battery if needed.

Many car manufacturers use coin-shaped batteries that are available in supermarkets, pharmacies, and hardware stores. You can also find online videos of people who have a guide on how to replace the key fob battery.

Reduced Operational Range


If a key-fob starts to work less reliably it's because the battery has died. Fortunately, there are different types of batteries for key fobs to be found at pharmacies, supermarkets, and home improvement stores that can be bought and then easily replaced. The majority of key fobs utilize lithium-ion button or coin cell battery that is fairly simple to open and replace. However certain fobs include the battery soldered to the case, which could require an automotive technician with experience in removing key fob batteries to access it.

The fob has to be programmed after the battery has been replaced to function correctly. Some vehicles allow owners to program an alternative key fob by using their owner's manual or an online resource, whereas others require you to go to the dealer for this service. For instance, Consumer Reports' automotive analyst Mel Yu explains that Mercedes-Benz keys must be ordered directly from the manufacturer and cannot be programmed through an authorized dealer due to the digital encryption that is used to protect them.

The operation of remote key fobs can also be affected by ambient noise and other environmental factors. Some buildings, for example are constructed of structural steel that can absorb radio signals and affect the range of the keyfob. This can also be an issue with remote key fobs which aren't being operated by the driver.

If the issue continues to persist after replacing the battery or having your remote keyfob professionally programmed, it could be due to a mechanical issue in the keyfob or its internal parts. In such cases it is recommended to contact an expert locksmith in College Park to examine the key fob and determine the reason for its malfunction. This will allow you to repair the issue and drive your vehicle again. A locksmith with experience can also offer you a high-quality key fob that is aftermarket and that is compatible with your car's security system. This will help you avoid expensive and costly repairs in the future. In some cases, an aftermarket key can cost less than the full replacement offered by a dealer.

Warning Notifications

If the fob's key is constantly telling you that the battery is depleted or needs to be held closer than usual to start your car, you should replace the fob's battery. This simple step will fix many issues, and will help you save money on costly repairs at the dealership.

If the replacement of the remote battery doesn't solve the issue, it may be required to replace the internal components. These repairs can be expensive however, they're usually covered under your basic or extended warranty or key protection plan you bought from a dealer, or under roadside assistance programs.

You may be able to save some money by purchasing an aftermarket replacement from a local hardware store or an online retailer. It is essential to select a reputable brand, and ensure it's compatible with your vehicle. Some aftermarket key fobs do not work with certain models of vehicles and could have a negative impact on the security systems that guard your vehicle.

Certain modern fobs do not have an apparent key Instead, they use a proximity sensor to unlock the doors. These keys can be used to start your vehicle. These remotes can be the most expensive and complex to replace since they have to be programmed for the specific model of your vehicle. If you require one of these remotes replaced, you should visit a locksmith shop or service center that can provide professional remote programming services.

If your key fob is broken beyond repair, you'll likely require replacement by the manufacturer or dealer. Certain manufacturers let you buy replacements at other stores or online retailers while others require that you go to the dealer to purchase an OEM replacement. It is recommended that you speak with a professional locksmith like Prolocksmith Orlando to get an affordable and efficient solution. They provide same-day or next-day service to get you back on the road in a hurry. They have a vast array of experience working with various car brands and models, allowing them to provide top-quality, precise service. Utilizing their knowledge, they can ensure the fob is programmed correctly to your vehicle's security systems.

Physical Damage

Your key fob is not indestructible, and it can suffer from the same physical damage that could affect any electronic device. Key fobs have circuit boards, batteries, and buttons, all of which can be damaged by sudden or unexpected shocks or when exposed to harsh environmental conditions. The battery and internal circuitry are particularly vulnerable to water damage. Even water splashes can cause permanent damage.

Other kinds of damage can also occur, including electrical malfunctions. A dead battery is one of the most frequent causes for a malfunctioning key fob. It's a good thing that the majority of key fobs have an area where you can easily replace the battery. If the problem persists you should contact a locksmith for further troubleshooting or to determine if it is necessary to replace the fob.

Signal interference is a different cause of a malfunctioning fob. This can happen when other electronic devices or security systems send out radio waves that disrupt the key fob's ability to receive and transmit signals. If you find that your key fob isn't unlocking or launching your car, you can try using a spare key fob to check if the issue could be caused by interference.

If your key fob isn't responding properly to its buttons at all, you may need to change the program. This is usually done by an auto locksmith or dealer.

It's tempting to take a peek inside your key fob however, it could cause damage. A key fob contains sensitive components, and it's best to leave any repairs or troubleshooting tasks to a professional. If you try to disassemble the key fob with no tools, you might cause damage to the circuit boards and batteries. It is also possible to crack or break buttons. In certain cases replacing the key fob could be the only option. A new key fob could be purchased for as little as $50, making it a cost-effective and easy repair option.

Battery Replacement

The battery inside your key fob can be replaced to fix many common issues, like an insufficient range or error messages. Full Content to do it yourself. But, it's essential to adhere to the manufacturer's guidelines to remove and install the fob. If you're not sure how to do this task yourself, contact an auto locksmith or a car dealership for assistance.

Begin by looking at the exterior of your key fob for damage. Examine for signs of moisture or electrical damage. Also, ensure that the transmitter isn't damaged. The transmitter is the part that instructs your car to recognize your key fob and communicate with it. You can use a working spare key fob to open and unlock your car to check if the transmitter is damaged.

Most key fobs have a small backup key on the back that can be used to pop the case open. If you don't own the key fob, you can pry apart the case with an a watch, flathead, or other precision tool. Some models have a notch you can use to open the gap. Others might require more pressure to separate them. Once the case has been opened, carefully remove the old batteries and replace them with new ones, which will match the orientation. If you have a spare battery check it out to confirm that the replacement battery functions.

If changing batteries does not resolve the issue then you might need to reprogramme the batteries. CR's Yu says this procedure requires special tools that only a few dealers have. Some dealers do not program aftermarket fobs bought from online retailers or brick and mortar auto shops because they consider them to be unauthorized replacements of original factory fobs.

Locksmiths with the right tools and training could reprogram your keyfob to fix the issue. However, you'd need to bring the keys to the dealer, not a locksmith, who could perform the task on-site. Dealers might charge more than independent shops or car locksmiths for this service.