Key Fob Replacement and Repair
Modern car key fobs are utilized frequently and are often misused. Many times, a simple repair or replacement is all it takes to restore them to good working order.
Most fobs utilize flat watch-style batteries, which can be found in auto parts stores. Before you call in a professional, you can do some of the DIY fixes.
Dead Key Fob Battery
The battery in the key fob's remote powers your car's remote, and in push-to-start cars, it can start your engine. It is therefore crucial to maintain a functional and healthy battery. A dead key fob is an issue for anyone in the middle of nowhere. A simple, affordable replacement can fix the issue quickly.
The most obvious indication that a key fob's battery is depleting is the loss of signal strength and range. You might also notice that the buttons on your fob do not function or require any effort to turn on.
A new key fob is available in the auto parts section of a big retailer or online. Typically, they are CR2032 or CR2025 batteries and are available in packs of two or more. Check out the owner's manual before you decide on the best battery. Certain vehicles require a certain size or kind of battery that's not always available at big-box stores Be sure to know the right specs before you purchase.
Typically the battery is situated on the back of your key fob and can be removed by prying the case open using an abrasive screwdriver with a flat blade. The battery will look similar to an ordinary coin, and it will be labeled according to its size. Be sure to note which direction the plus and minus symbols are oriented to ensure that the new battery is placed correctly. After the replacement battery has been inserted, gently snap both pieces of the fob together and test each button to ensure they work.
If your key fob still doesn't work after replacing the battery, it could have been deprogrammed. In this scenario, you'll need to contact a locksmith for help, which will cost some more than replacing the key fob battery.
If the battery in your fob 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. Schedule an appointment to see 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 a sign that the signaling system is not working correctly. Your car and key fob depend on radio signals to communicate, therefore weak or inconsistent signals can cause poor range and performance.
The battery level of your fob is a good idea, as it can significantly affect signal sensitivity. Resetting the settings of the fob can also help restore a more regular response. The process will vary from vehicle to vehicle. The owner's guide or a call to your manufacturer's support line is your best source of information.
Other factors can cause weak fob signals, including interference from other devices operating on the same frequency as your key fob. Power lines as well as other key fobs, wireless communication devices, and even cell networks can disrupt the RF (radio frequency) signals that your key fob utilizes to connect to the receiver in your vehicle.
The physical damage to your keyfob can interfere with the transmission of radio signal, leading to low performance and a limited range. A blown fuse, a damaged or cracked button or bent fob case can interfere with the transmission of signals, causing the remote to fail to respond.
There are a few simple steps you can take to try and resolve the issue of weak fob signals, such as resetting the fob's settings, or replacing the battery. If your fob has become old and worn, it could be the right time to replace it.
Don't forget to use the spare remote that came with your car in the event that your primary remote begins to fail. It's worth trying this solution to see if it solves the issue before investing in a new one. If not, it might be the perfect time to contact an expert auto locksmith. They will be able to identify the issue and recommend the best method of action.
Physical Damage
It's not unusual for key fobs to have issues from time to time. The majority of these issues are not complex or serious and can be resolved with just a few steps. It's a good idea also to keep spare batteries or a different fob in case your key ever ceases to work.
A dead battery is the most frequent reason for a car keyfob not working. These tiny devices depend on tiny lithium-ion coin or button cell batteries to function. They are easily replaced and are available at most pharmacies and stores. You can open your fob's casing using a screwdriver with a flat head and gently pull out the battery. Ensure that it is not damaged or loose, and then simply pop in the new battery. Most fobs utilize CR2032 batteries, but yours might require an alternative type.
When your fob loses its pairing, it may also cease to respond to buttons. This can be caused by various reasons, such as changing the batteries. However it is possible to fix the issue with an auto Locksmith or a local dealership is usually able to solve the issue.
Try this trick to solve your fob issue if none of the above methods work: disconnect the battery from both the fob and the car for about 10 minutes, then reconnect them in the opposite order. This could cause the system to restart, and in some cases, this will fix the issue without additional steps.
When you're playing around with the fob, make sure to keep it clear of water and other possible sources of damage. The fob is a durable device, but you should treat it with care to make it last as long as it can.
If none of the troubleshooting steps above help, you may need to replace your key fob. If it's been dropped and trampled or exposed to extreme conditions, it might not be repairable and will need an upgrade. If that's the case, you should be sure to look around to find a bargain before making a final decision.
Lost Fob
Even with the best of care, car key fobs will occasionally stop working. If you lose yours, it could be a huge expense to replace it--especially in the event that you don't have spare. "You might end up paying $50 or more for an equivalent replacement from the dealer and have it programmed, plus a new mechanical backup, which will cost at least another $100," says Mel Yu who is an automotive analyst at Consumer Reports.
A weak battery is one of the most frequent reasons for a keyfob's cease to function. If you know how to change the battery, or if your owner's manual has instructions, you can try it yourself. If redirected here doesn't work, you'll need to call an expert.
A locksmith can help you to replace or locate your lost key fob. They will also likely have an idea of why your fob stopped working in the first instance. If your car is older and does not include smart technology, you can still save money by recording the key number plate on your mechanical backup key. It's usually hidden behind a keychain with an ornamental design. This will make it much easier for a locksmith to reprogram the new key fob to your car should you need to do so.
If your current key fob is a modern smart key it will require a locksmith or a dealership to deprogram it before getting a new one made, which can be more expensive than simply replacing it. This is because modern key fobs use rolling-code encryption to stop thieves from gaining access to the car. This means that the locksmith has to have a special programing tool that is only available to car manufacturers, which increases the cost.
In the majority of cases, the entire service will be billed at one time. This includes all costs for reprogramming a keyfob. Depending on the type of vehicle the cost can range from a mere $20 at some shops to $200 or more at a car dealership.