Key Fob Replacement and Repair
Key fobs on modern vehicles do a lot of work and are subject to a lot of abuse. In many cases, a simple repair or replacement is all that's required to get them back in good working in good condition.
Most fobs use flat-watch-style batteries that can be found in auto parts stores. Before you call in a professional, you can do some DIY fixes.
Dead Key Fob Battery
The key fob battery powers the remote function in your car. It also, in conjunction with push-to-start vehicles, allows it to start your engine. This is why it is crucial to maintain an efficient, functioning battery. A dead key fob is a major problem when you're traveling. The good news is that a cheap, simple replacement is able to fix the issue quickly.
The loss of range and signal strength are among the most frequent indications that a battery on a keyfob is failing. You might also notice that the buttons on your key fob are not working or require additional effort.
A new key fob is available in the auto part section of a large retailer or on the internet. They are typically CR2032 or CR2025 batteries and are available in packs of two or more. Make sure to consult your owner's manual prior to you shop for the right battery. Some cars require a specific size or type that isn't always available at big-box stores. Be sure to research before you buy.
The battery is usually found at the back of the key fob. It can be removed with a flat-bladed screwdriver by removing the case. It will usually resemble the shape of a small coin, and be labeled with the battery size. Be sure to note which direction the plus and minus symbols are placed to ensure that the new battery is positioned correctly. After the battery has been replaced and the fob is closed, gently snap the two pieces of the fob back together, and test the buttons.
It's worth noting that, if your key fob continues to not function even after a battery replacement, it might have been deprogrammed. In this case you will require a locksmith required to assist you. This will cost more than just replacing the key fob's battery.
Our skilled mechanics at YourMechanic can repair your key fob if it's damaged or the battery has failed. Be sure to check out all of our services available in your region and book an appointment today!
Weak Signals
If you notice that your key fob isn't responding as you would expect to the buttons on the remote, it could be an indication of a problem with signaling. Your car and key fob are dependent on radio signals to communicate, therefore weak or inconsistent signals could cause poor range and performance.
One of the first things you should determine is if your fob's battery is low because this could significantly affect the sensitivity of the signal. It's also worth resetting the settings on your fob, which can help to get an even and consistent response from the car. The process will vary from vehicle to vehicle. Suggested Internet site or a phone call to your manufacturer's support line is the best guide.
Other factors can contribute to weak fob signals, for example, interference from other devices that operate on the same frequency as your key fob. Other key fobs and wireless communication devices can interfere with the signal RF (radio-frequency) signals that your key fob transmits to the receiver of your vehicle.
Physical damage to your keyfob can affect the transmission of RF signal, leading to low performance and a limited range. A damaged or blown fuse, a broken or cracked buttons or a bent case can all interfere with the transmission of signals and cause the remote to fail to respond.
There are some simple steps you can follow to try and solve the issue of weak signals from your fob, for example, resetting the fob's settings or changing the battery. If your fob has become old and worn, it could be the right time to replace it.
Don't forget to remember that if you have an extra key fob which is part of your vehicle, it can be used instead of the primary remote if it starts to fail. Try this method first to see if it can solve the issue prior to buying an entirely new remote. In this instance, it might be an appropriate time to consult an auto-locksmith professional. They will be able diagnose the issue and recommend the best course of action.
Physical Damage
Key fobs can be troublesome from time to time. Most of these problems aren't complicated or difficult to fix and can be solved with just a few steps. It's recommended to have spare batteries or even another key fob in the event that one of your keys fails to work.
A dead battery is the most common cause of a car keyfob not working. These tiny devices are powered by lithium-ion buttons or coin cell batteries. They can be replaced easily and are available at most pharmacies, grocery stores and places that sell electronic products. You can open your fob's case using a flat head screwdriver and gently pull out the existing battery. Replace the battery, ensuring it's not damaged or loose. Most fobs use CR2032 batteries. However, yours might require a different kind.
When your fob loses its pairing, it may also stop responding to buttons. This can be caused by a variety of factors, such as changing the batteries. However it is possible to fix the issue with an auto Locksmith or local dealership can usually fix it.
You can try this trick to fix your fob in the event that none of the above methods work: disconnect the battery from both the car and the fob for about ten minutes, then reconnect them in a reverse order. This can force a restart within the system and, in some instances, this alone will fix the issue without requiring any of the other steps.
While you're testing the fob, be sure to keep it out of water and other potential damage sources. A fob is durable but you need to treat it with care to make it last for as long as you can.
If the above troubleshooting tips aren't working, it could be time to think about replacing your key fob. If it's been dropped, trodden on or subjected to other extreme environmental conditions, it may be beyond repair and requires an upgrade. Find the most competitive price.
Lost Fob
Even with the best care keys to cars may fail to function. If you lose yours, it could be very expensive to replace it, particularly when you don't have a spare. "You could end up paying $50 or more to purchase an equivalent replacement from a dealer and get it programmed, plus a new mechanical backup which could cost you at least another $100," says Mel Yu who is an automotive analyst at Consumer Reports.
A weak battery is one of the most common reasons for a keyfob's stop working. If you are aware of how to replace the battery, or if your owner's guide has instructions, try it yourself. If that doesn't solve the problem, you need to call in an expert.

A locksmith can help replace or find your lost key fob. They'll also have a good idea of the reason why your fob stopped working in the first instance. If your vehicle is a model older than the one you own and has no built-in smart technology You can save cash by locating the key number plate on your existing mechanical backup key (it's typically hidden behind a keychain ornament with a decorative design) and storing it in a safe place--such as your wallet or on your phone. This can make it easier for the locksmith to reprogram the new key fob for your car should you require it.
If your current key fob is a smart key of the present it will require an auto dealer or locksmith to deprogram it and get a new one created and this can be more expensive than simply replacing it. That's because modern key fobs utilize rolling-code encryption that prevents thieves from gaining access to the car. This means that the locksmith must have a special software program that is available only to the car manufacturer, which increases the cost.
In most instances, you'll need to pay for the entire service at once, including any charges to reprogram the new key fob. This can range from $20 in certain stores to over $200 at car dealerships, depending on the model of vehicle.