Key Fob Replacement and Repair
Key fobs on modern automobiles are very efficient and are subject to a lot of abuse. Sometimes, a simple replacement or repair is all it takes to get them back in good working order.
Most fobs use flat watch-style batteries, which can be found in hardware stores and auto parts retailers. Before calling an expert, try some DIY fixes.
Dead Key Fob Batteries
The battery of the key fob powers the remote you have in your car and in push-to start cars it will start your engine. It is therefore essential to maintain a functional healthy and a good battery. A dead key fob can be an issue when you're in the middle of nowhere. A simple, inexpensive replacement will fix the problem quickly.
The most obvious sign that a key fob's battery is dying is the decrease in signal strength and range. You may also find that the buttons on your fob do not work or require additional effort to be activated.
It is common to find an updated key fob battery in the auto parts section of a large box store or on the internet. Typically, they're CR2032 or CR2025 batteries that are sold in packs of two or more. Check out the owner's manual before you shop for the right battery. Some cars require a specific size or type of battery that is not always available at big-box stores. Be sure to research before purchasing.
Typically the battery is situated in the back of your key fob. It can be removed by prying the case open with an abrasive screwdriver with a flat blade. It is usually shaped like the shape of a small coin, and be marked with the battery's size. Be sure to note which way the plus and minus symbols are positioned to ensure that the battery you are replacing is placed correctly. After the replacement battery is placed in the fob, gently snap both pieces of the fob in place and test each button to ensure that they work.
If your key fob doesn't work after replacing the battery, it could be deprogrammed. In remote key fob repair , you'll need to contact locksmiths for assistance which will cost a bit more than replacing the battery in your key fob.
Our skilled mechanics at YourMechanic can repair your key fob if it's damaged or the battery has died. Make sure to look over all of our services in your region and book an appointment today!
Weak Signals
If your key fob isn't able to respond to the buttons on the remote, it could indicate that the signaling isn't working properly. Your car and key fob rely on radio signals to communicate, and weak or inconsistent signals could cause poor range and performance.
Examining the battery level of your fob is a good idea, as it can significantly affect the sensitivity of your signal. It's also worth resetting the settings on your fob and help get the same response from the car. The process varies from vehicle to vehicle, so the owner's manual or a phone call to the helpline of the manufacturer is likely to be the best source of information here.
Other factors can contribute to 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 uses to connect to the receiver in your vehicle.
Furthermore physical damage to your key fob could hinder the transmission of signals RF, which could result in a decrease in performance and range. A blown fuses, a broken or cracked button or a bent case of the fob could affect the transmission of signals and cause the remote to not to function properly.
You can solve the issue by resetting the fob's settings, or by replacing the battery. If your fob has become old and worn, it could be time to replace it.
Lastly, don't forget that if you have a spare key fob that comes with your vehicle, this can be used as a replacement for the primary remote in case it begins to fail. It's worth trying this solution to determine if it resolves the issue prior to investing in the new one. If not, it could be the best time to consult a professional auto locksmith. They will be able to identify the issue and suggest the best way to proceed.
Physical Damage
It's not uncommon for key fobs to experience issues from time to time. Most of these issues are not complex or difficult to fix and can be solved by following a few easy steps. It's important to have spare batteries or another key fob in the event that one of your keys ceases to function.
A dead battery is the most frequent reason why a key fob in a car is not working. These tiny devices are powered by lithium-ion button or coin cell batteries. These batteries are easily replaceable and can be found at most pharmacies and stores. You can open the case of the fob using a screwdriver with a flat head and gently pull out the battery you have. Check to see if it's loose or damaged and then insert the new battery. Most fobs require batteries with CR2032 capacity. However, yours may require a different type.
Your fob could not be responding to buttons after losing its connection to the car. This could be due to a variety of factors, including changing the batteries, however it is generally simple to get an auto Locksmith or your local dealer to resolve.
You can try this trick to fix your fob when none of the other methods work: remove the battery from both the car and the fob for around ten minutes, and then reconnect them in the opposite order. This can force the system to restart, and in certain cases it can fix the issue without additional steps.
Keep the fob out of water or other sources of harm while you're experimenting. Fobs can be quite durable, but it's important to treat it with care if you want it to last as long as possible.
If none of the troubleshooting procedures above work, you may need to replace your key fob. If yours has been dropped, trodden on or subjected to other extreme environmental conditions, it could be beyond repair and may require an upgrade. If this is the case, you should be sure to search for a deal prior to making your final decision.
Lost Fob
Even with the best care it's a fact in life that car key fobs will occasionally cease to function. If yours is lost, it could be very expensive to replace it, particularly in the event that you don't have spare. "You might end up paying $50 or more for an alternative from a dealer and get it programmed, plus an additional mechanical backup which will cost at most 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 contains instructions, you can try it yourself. If this doesn't resolve the problem, it's time to call in an expert.
A locksmith can assist you to replace or locate the lost key fob. A locksmith can probably tell you why your fob stopped functioning in the first place. And if your car is an older model with no built-in smart technology, you can save some cash by locating the key number plate on your current mechanical backup key (it's usually hidden behind a decorative keychain) and recording it in a safe place--such as in your wallet or on your phone. If you need to reprogram your car's key fob, the locksmith can do it much more quickly.

If your key fob is an old smart key, it will need to be deprogrammed by a locksmith or car dealer. This could cost more than just replacing it. Modern key fobs are protected by rolling-code encryption that prevents thieves from gaining access to your car. This means that locksmiths must be equipped with a specific software program which is only available to the car manufacturer, which increases the cost.
In most instances, you'll need to pay for the entire service at once, including any costs to reprogram the new key fob. This can range from $20 at some shops to over $200 at dealerships for cars, based on the model of vehicle.