Three Common Reasons Your Key Fob Repair Isn't Working (And How To Fix It)

· 6 min read
Three Common Reasons Your Key Fob Repair Isn't Working (And How To Fix It)

Key Fob Repair - Replace the Battery

Key fobs last between three and four years. If they begin to show signs that they are damaged, you should examine them to determine if they have been damaged and replace the battery, if needed.

Fortunately, a lot of car makers make use of coin-shaped batteries, which are sold at grocery stores, pharmacies, and hardware stores. You can also find videos online from people who have a guide on how to replace the battery on the key fob.

Reduced Operational range

It's very likely that the battery is dead when a key fob stops working effectively. Luckily, there are many different kinds of batteries for key fobs available at pharmacies, supermarkets, and home improvement stores that can be bought and replaced easily. The majority of key fobs have 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, and may require an automotive technician with experience in the removal of key fob batteries to get access to it.

The fob needs to be programmed after the battery is replaced for it to work properly. Certain vehicles let you program a replacement fob for a key with the help of your owner's manual or an online resource. Others require that this service be performed at the dealership. For instance, Consumer Reports' automotive analyst Mel Yu explains that Mercedes-Benz keys are ordered directly from the manufacturer and cannot be programmed at a dealer because of the digital encryption that is used to protect them.

Another problem with remote key fobs is that their operation could be affected by ambient noise and other environmental factors. Certain buildings, like are constructed of structural steel that can absorb radio signals and interfere with the range of a 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's keyfob programmed professionally it could be due to a mechanical issue within the keyfob or the internal parts of it. In such cases it is recommended to contact a professional locksmith in College Park to examine the key fob to determine the cause of its malfunction. This way, you can make the necessary repairs and then get back in your vehicle. In addition, an experienced locksmith can supply a top-quality aftermarket key fob that's compatible with your vehicle's security systems. This will aid you in avoiding costly and lengthy repairs in the near future. In some cases aftermarket keys may cost less than a complete replacement from a dealer.

Warning Notifications

Replace the battery in the fob's key if it is constantly telling you that the battery is dead or if you have to hold it a bit closer than normal to start your vehicle. This simple action will fix numerous issues and help you save money on costly repairs at the dealer.

If a new battery doesn't resolve your key fob's problem, you may need to have the remote's internal components replaced. Repairs to these components can be costly however, they are usually covered by your warranty, a key protector plan you purchase through a dealer or roadside assistance programs.

You can save money by buying an aftermarket replacement from the local hardware store or online retailer. But, it's important to choose a reputable brand and ensure compatibility with your vehicle prior to purchasing one. Some aftermarket key fobs do not work with certain models of cars and may have a negative impact on the security systems that safeguard your vehicle.

Some modern fobs don't have an obvious key at all Instead, they use proximity sensors to unlock the doors. These types of keys can also be used to turn on the vehicle's starter. 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 to have one of these fobs replaced, you must visit a locksmith shop or service center that offers expert remote programming services.

If your key fob has been damaged beyond repair, it's likely to need to be replaced by the manufacturer or dealer. Certain manufacturers permit you to buy replacements at other stores for parts or online retailers, while others require that you go to the dealer to purchase an OEM replacement. It's recommended that you contact a professional locksmith like Prolocksmith Orlando for an affordable, efficient solution. They offer same-day and next-day services to get you back on the road as quickly as possible. Their extensive experience with various car models and brands allows them to provide precise, top-quality service. They can program the fob correctly with their experience.

Physical Damage

Your key fob is not indestructible, and it can be affected by the same physical damage that can affect any type of electronics device. Key fobs consist of circuit batteries, buttons and boards. These components could be damaged when they are exposed to sudden shocks, harsh conditions or other environmental factors. Damage from water is likely to affect the battery and internal circuitry. Just a few splashes of liquid could cause irreparable damage.

Other kinds of damage are also possible and include electrical malfunctions. One of the most common causes of a malfunctioning key fob is a dead battery. It's good to know that most key fobs come with a compartment in which you can easily replace the battery. If the problem persists, you should consult an expert locksmith for further assistance or to determine if you're required to replace the fob.

Another reason for malfunctioning keys is signal interference. This happens when other electronic devices or security systems emit radio waves that interfere with the key fob's capability to receive and transmit signals. If your key fob has difficulties unlocking your vehicle or starting it you could try a spare fob to see if it is caused by interference.

If your key fob isn't responding to its buttons at all it is possible to reprogramme it. This is usually done by an experienced auto locksmith or the dealership.

While it's tempting to open your key fob and take a look inside, it's important to be aware that doing so could cause damage to it. It's recommended to leave repairs for your key fob and troubleshooting up to professionals. A key fob has delicate 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 cases replacing the key fob might be the only option. A new key fob could be bought for as little as $50, making it a cost-effective and easy repair option.

Battery Replacement

The battery inside your keyfob can be changed to address common problems, including a lack range or error messages. It's possible to do this yourself. But, it's essential to follow the instructions of the manufacturer on how to remove and replace the fob. If you're not confident handling this work yourself, call an auto locksmith or a car dealership to assist.

Start by checking the exterior of your keyfob for damage. Check for indications of moisture or electrical damage, and make sure that the transmitter inside isn't damaged. The transmitter is what tells your car how to communicate with your key fob. You can use a working spare key fob to unlock and open your car to determine if your transmitter is broken.


Most key fobs have an additional key on the back, which can be used to pop the case open. If you don't own an actual key fob, you can take off the case with an a watch, flathead, or other precision tool. Some have a notch that you can use to create the first gap. However, others require more pressure to separate the two halves. Once the case has been opened, carefully remove the old batteries and replace them with new ones, which will match the orientation. Test the battery replacement on a spare key fob in case you have one.

If replacing batteries does not resolve the issue then you might need to reprogramme the batteries. However, this procedure 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 car shops, as they believe them to be illegal replacements for factory fobs.

key fob repair near me  who has the right tools and knowledge can reprogram your key fob to fix the problem, but you'll need bring the keys to a retailer to have it done, as opposed to a locksmith who might be able to handle the job on their own. In some instances, the dealer will charge more for this service than a local shop or an auto locksmith.