Key Fob Repair - Replace the Battery

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

Many car manufacturers use a coin-shaped battery that can be found in grocery stores, pharmacies and hardware stores. You can also find online videos from users who show how to replace the battery on the key fob.

Reduced Operational Range


It's likely that the battery is dead when the key fob stops functioning reliably. There are a variety of batteries that can be purchased and easily replaced at grocery stores, pharmacies, and home improvement shops. The majority of key fobs utilize lithium-ion coin or button cell battery that is simple to open and replace. However certain fobs have the battery attached to the case, which could require an experienced technician in the field of automotive in taking out key fob batteries in order to access it.

The fob must be programmed after the battery has been replaced to function properly. Certain vehicles permit owners to program the replacement key fob with the owner's manual or an online resource, whereas others require that you head to the dealership to receive this service. Mel Yu, Consumer Reports automotive analyst clarifies that Mercedes Benz keys can only be programmed by a dealer due to the digital encryption.

The operation of remote key fobs could be affected by ambient sound and other environmental factors. Some buildings, for example contain structural steel, which can absorb radio signals and limit the range of a keyfob. This is also an issue with remote key fobs that are not being operated by the driver.

If replacing the battery and having your remote key fob professionally programmed doesn't resolve the problem it could be an issue that is more mechanical with the key fob or its internal components. In this case you should consult locksmiths in College Park who can examine the key fob to identify the cause of the malfunction. repair car key remote , you'll be able to get the correct repairs done and get back to driving your vehicle. A locksmith with experience can also provide you with a high-quality key fob from the aftermarket that is compatible to your vehicle's specific security system. This will help you save time and money on future repairs. In some cases an aftermarket key may cost less than the full replacement offered by a dealer.

Warning Alerts

Replace the battery on the fob's key if it is constantly telling you that the battery is low or if you have to hold it closer than normal to start your car. This simple fix can solve many issues and help you avoid costly repairs at the dealership.

If a new battery doesn't solve the problem with your key fob, you may need to have the remote's internal components replaced. These repairs can be expensive however, they're usually covered by your basic or extended warranty or a key protection plan that you purchased through a dealer, or by roadside assistance programs.

You can save money by buying an aftermarket replacement at an area hardware store or online retailer. However, it's essential to choose a reputable brand and make sure it is compatible with your vehicle before buying one. A lot of aftermarket keyfobs don't work with certain models of vehicles, and can negatively impact the security systems in your vehicle.

Some modern fobs have no obvious key at all Instead, they use a proximity sensor to unlock the doors. These keys can be used to get your vehicle started. These remotes are the most complex and costly to replace because they have to be programmed specifically to the specific model you have. If you need one of these remotes to be replaced, go to an locksmith who can provide remote programming services.

If your key fob is damaged beyond repair, it's likely to need to be replaced by the manufacturer or dealer. Certain manufacturers let customers purchase replacements from other parts stores or online retailers, whereas others require you to visit the dealership for an OEM replacement. It is recommended to contact a professional locksmith such as Prolocksmith in Orlando, to find an affordable and effective solution. They offer same day or next-day service to help you get back on the road quickly. Their vast experience with a variety of car models and brands allows them to provide precise, top-quality service. With their knowledge, they can ensure the fob is correctly programmed to your vehicle's security systems.

Physical Damage

Your key fob is not indestructible, and it can suffer from the same physical damages that affect any type of electronics device. Key fobs are made up of circuit boards, buttons and batteries. These components are susceptible to being damaged if they are exposed to sudden shocks, harsh conditions or other environmental factors. Water damage is most likely to affect the battery and internal circuitry. Even splashes of water can cause permanent damage.

Other kinds of damage are also possible, including electrical malfunctions. One of the most frequent reasons for a malfunctioning key fob is a dead battery. It's a good thing that most key fobs come with a compartment that allows you to easily replace the battery. If the problem persists you should contact an expert locksmith for further assistance or to determine if you need to replace the fob.

Signal interference is another reason of a malfunctioning fob. This can occur when other security devices and electronic devices transmit radio signals that interfere with the ability of the key fob to send or receive signals. If your key fob is having difficulties unlocking your vehicle or starting it, you could try a spare fob to determine if the issue is due to interference.

If your key fob isn't responding properly to its buttons at all, you may need to reprogramme it. This is usually done by a professional auto locksmith or the dealership.

It's tempting to peek inside your key fob but it could result in damage. It's recommended to leave repairs to your key fob and troubleshooting to professionals. Key fobs have sensitive components. If you attempt to disassemble the key fob with no tools, you could cause damage to the circuit boards and batteries. It is also possible to crack or break buttons. In some instances replacing the key fob may be the only option. A new key fob can be available for as little $50, making this a convenient and affordable repair option.

Battery Replacement

The battery in your keyfob can be changed to address common issues, such as the absence of range or error messages. You can do it yourself however, it's essential to adhere to safety guidelines as well as the instructions provided by the manufacturer for removing and reinstalling it. If you're not comfortable handling this work yourself, call an auto locksmith or dealership for assistance.

Begin by looking at the exterior of your keyfob for damage. Look for signs of electrical or moisture damage, and also check that the transmitter inside isn't damaged. The transmitter tells your car how to communicate with your key fob. You can use a spare key fob to unlock and open your vehicle to determine if the transmitter is damaged.

Most key fobs have an additional key on the back that you can use to pop the case open. If you don't have an actual key fob, you can make use of a flathead screwdriver, watch or other precision tool to open the case. Some have a notch that you could use to get the first gap, whereas others may need more pressure to separate the halves. After the case has been opened take the battery that was in use and replace it with a brand new one, making sure it align with the orientation. Test the battery replacement on a spare key fob If you have one.

If replacing the batteries doesn't fix the problem You may require reprogramming. However, this process requires specialized equipment that only some dealers have access to, says CR's Yu. Some dealers won't program aftermarket fobs that are purchased from online retailers or brick and mortar auto shops, as they believe them to be unauthorized replacements for factory fobs.

A locksmith equipped with the appropriate tools and knowledge can reprogram your key fob in order to fix this problem, but you'll need to take keys to a dealer in order to get the work done, as opposed to a locksmith who may be able to handle the task on-site. Dealers may charge more than independent shops or car locksmiths for this service.