The Hidden Secrets Of Fob Key Repair

· 6 min read
The Hidden Secrets Of Fob Key Repair

Key Fob Replacement and Repair

Modern car key fobs are used a great deal and are often misused. Many times just a simple repair or replacement is all that's required to bring them back into good working order.

Most fobs run on a flat watch-style battery, which is easily found in auto parts and hardware stores. Before you call an expert, try a few DIY fixes!

Dead Key Fob Batteries

The key fob battery powers the remote function of your car. It also, in conjunction with push-to-start vehicles, allows it to start your engine. It is therefore important to maintain a working, healthy battery. When you're out and about and your key fob is not working, it can be a huge problem. A simple, affordable replacement can fix the issue quickly.

The most frequent sign that a key fob battery is depleting is the loss of signal strength and range. You might also be noticing that the buttons on your fob do not work or require extra effort to turn on.

You will often find an updated key fob battery in the auto parts section of a large box retailer or online. They are typically CR2032 and CR2025 and are sold in packs of 2 or more. However, it's a good idea to check your owner's manual before shopping for the correct battery for your device. Certain vehicles require a particular size or type of battery, which isn't always readily available at big-box stores. Make sure to verify before purchasing.

Typically the battery is placed on the back of your key fob and is removed by tearing open the case with a flat-blade screwdriver. The battery will look like 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 still does not work after replacing the battery, it could have been deprogrammed. In this instance, a locksmith will be required to assist. This will cost more than replacing the key fob's battery.

Whether your fob battery is failing or you're experiencing other issues with your fob's battery an experienced mechanic such as one from YourMechanic can check and repair it to get you back on the road. Set up an appointment to review the range of services we provide in your area.

Weak Signals

If your key fob does not respond to the buttons on the remote, it could be an indication that the signaling system is not working properly. Your car and key fob rely on radio signals to communicate, and weak or inconsistent signals can cause poor performance and range.

One of the first things you should determine is if the battery of your fob is depleted since this can greatly affect the sensitivity of your signal. It's also advisable to reset the settings on your fob and help restore a more consistent response from the car. The procedure may differ from vehicle to vehicle. Your owner's guide or a phone call to your manufacturer's support number is your best source of information.

Other factors, including interference from other devices that operate at the same frequency can also affect weak signals. 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 inside your vehicle.

The physical damage to your keyfob can also affect the transmission of an RF signal, leading to low performance and a limited range. A blown fuse, a damaged or cracked buttons or bent fob case could affect the transmission of signals and cause the remote to fail to respond.

You can attempt to fix the problem by resetting the fob's settings or by replacing the battery. If your fob is old and worn, it may be the right time to replace it.

Don't forget to make use of the spare remote that came with your car in the event that your primary remote begins to fail. Try this method first to see if you can fix the problem before purchasing an entirely new remote. In this situation it could be the right the right time to contact an auto-locksmith professional. They can identify the issue and suggest the best method of action.

Physical Damage



It's not uncommon for key fobs to encounter problems from time to time. The majority of these issues aren't complex or difficult to fix and can be solved with a few simple steps. It's also a good idea to have spare batteries or even another fob available in case one of your keys ever ceases to function.

The most common reason for the car key fob not working is the battery is dead. These little devices rely on tiny lithium-ion button or coin batteries to function. They are easy to replace and can be found at most pharmacies, grocery stores and shops which sell electronic items. You can access the fob's casing using a flat head screwdriver and gently pull out the battery. Replace the battery, ensuring it's not damaged or loose. The majority of fobs use CR2032 batteries, however yours may require a different type.

Your fob might also stop responding to buttons when it loses its pairing with the vehicle. This could be due to many factors, such as changing the batteries. However it is possible to fix the issue with an auto Locksmith or a local dealership can usually fix it.

Try this trick to solve your fob issue in the event that none of the above methods work: disconnect the battery from both the fob and the car for around ten minutes, and then reconnect them in the reverse order. This could cause the system to reboot, and in some instances, this will fix the issue without additional steps.

While you're experimenting with the fob, be sure to keep it away from water and other sources of damage. The fob is tough, but you should take care of it to make it last as long as it can.

If none of the troubleshooting techniques above help you, you may have to replace your key fob. If it's been dropped or tripped on, or subjected to other harsh environmental conditions it could be beyond repair and in need of a replacement. If that's the case, make sure to look around to find a bargain before making your final choice.

Lost Fob

Even with the best care keys for cars, they can fail at times. If  mobile car key repair near me  lose yours it can be extremely expensive to replace it, particularly when you don't have a spare. "You might end up paying between $50 and $100 for a new one and getting it programmed by the dealer, and an electronic backup that could cost another $100," says Mel Yu an automotive analyst at Consumer Reports.

One of the most frequent reasons for a key fob to stop working is a basic issue, such as a weak battery. You can try changing the battery yourself when you know how, or refer to your owner's manual. But if that doesn't fix the problem, it's time to call in an expert.

A locksmith will be in a position to assist you in finding the lost fob or have it replaced. They'll also have an idea of the reason why your fob was not functioning in the first place. If your car is older and does not come with smart technology however, you can save money by recording the number plate from your mechanical backup key. It's typically hidden behind a keychain with an ornamental design. This will make it much easier for a locksmith to reprogram a new key fob to your car in the event that you need to do it.

If your key fob is an old smart key, it'll have to be deprogrammed by a locksmith or a car dealer. This could cost more than replacing it. That's because modern key fobs employ rolling-code encryption that prevents thieves from gaining access to the car. This means that the locksmith must have a special programming tool which is only available to car manufacturers, which can increase the cost.

In most cases, the entire process will be charged the same time. This includes any charges to reprogramme a new keyfob. Depending on the vehicle the cost can range from around $20 at certain stores to $200 or more at a car dealer.