Key Fob Replacement and Repair
The key fobs found in modern cars do a lot of work and are subject to a lot of abuse. Sometimes just a simple repair or replacement is all it takes to restore them to good working in good condition.
Most fobs are powered by flat watch-style batteries, which is easily found in hardware and auto parts stores. Before calling a professional, you can do a few DIY fixes.
Dead Key Fob Battery
The battery in the key fob's remote powers the remote you have in your car, and in push-to-start cars it will start your engine. As a result, it is crucial to maintain an efficient, functioning battery. A dead key fob can be an issue for anyone traveling. A simple, affordable replacement will fix the problem quickly.
The most obvious sign that a battery on a key fob is dying is the loss of signal strength and range. It is also possible to notice that the buttons on the key fob aren't working or require additional effort.
You can often find a new key fob battery in the auto parts section of a large box retailer or online. They are typically CR2032 or CR2025 batteries and are available in packs of two or more. Consult your owner's guide before you shop for the right battery. Certain cars require a certain size or type that isn't always 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 the case open using the flat-blade screwdriver. The battery will look like tiny coins and will be labeled according to its size. Make sure to note the orientation of the plus and minus marks to ensure that you insert the battery 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 they work.
It's worth noting that if your key fob continues to stop functioning, even after a battery replacement, it might be deprogrammed. In this case you'll have to contact a locksmith for help and it will cost you some more than replacing the battery of your key fob.
The skilled mechanics at YourMechanic are able to repair your key fob if it's damaged or the battery has failed. Schedule an appointment to see all of the services we offer in your region.
Weak Signals
If your key fob does not respond to the buttons of the remote it could indicate that the signaling is not functioning correctly. Radio signals are used to send messages between your car and key fob. Weak or inconsistent radio signals can lead to poor performance and a limited range.
The battery level of your fob is a good idea, as it can affect the sensitivity of your signal. 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 the manufacturer's support line is your best guide.
Other factors, like interference from other devices operating on the same frequency can also contribute to weak signals. Other key fobs and wireless communication devices can interfere with the RF (radio-frequency) signals that your key fob transmits to connect to the vehicle's receiver.
Finally physical damage to your key fob could hinder the transmission of RF signals, which could result in a decrease in range and performance. A blown fuse, damaged or cracked button, or a bent case on the fob may all affect the signal transmission and cause the remote not to function properly.
You can try to fix the problem by resetting the settings on your fob, or by replacing the battery. If your fob has become old and worn, it may 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 starts to fail. Try this method first to determine if you can solve the issue prior to purchasing a new remote. In this situation, it might be an appropriate time to consult a professional auto-locksmith. They will be able to diagnose the problem and suggest the best method of action.
Physical Damage
Key fobs can have problems at times. Fortunately, most of these problems are not serious or complex and can be fixed by following 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 fails to work.
The most frequent cause for a car key fob not working is a dead battery. These small devices rely on tiny lithium-ion coin or button cell batteries to function. They are easily replaced and can be found in most pharmacies and stores. Open the fob's case with a screwdriver with a flat head and gently remove your existing battery. Replace the battery, making sure it's not damaged or loose. Most fobs require CR2032 batteries. However, yours might require a different kind.
The fob may also stop responding to buttons if it loses its connection with your vehicle. This can happen due to a variety of factors, such as changing the batteries, but it is typically a simple issue for an auto Locksmith or your local dealership to fix.
You can try this method to fix your fob in the event that none of the above methods work: disconnect the battery from both the fob and the car for about ten minutes, and then reconnect them in the reverse order. This could trigger a reboot within the system and, in some instances this will fix the problem without doing any of the other steps.
While you're testing the fob, be sure to keep it away from water and other dangers. The fob is quite robust, but it's crucial to take care with it if you want it to last as long as you can.
If none of the troubleshooting steps above work you, you may have to replace your key fob. If it's been dropped or trampled upon, or exposed to harsh environmental conditions, it could not be able to be repaired and will require a replacement. If read page is the case, make sure to look around for a deal before making a final decision.
Lost Fob
Even with the best care keys for cars, they can fail at times. If you lose yours it could be a huge expense to replace it--especially if you don't have a spare. "You might end up paying $50 or more for an equivalent replacement from a dealer and get it programmed, as well as an additional mechanical backup which will cost at most another $100," says Mel Yu, an automotive analyst with Consumer Reports.
A weak battery is one of the most common causes for a keyfob's device to cease to function. If you are aware of how to replace the battery, or if the owner's manual contains instructions, you can try it yourself. If this doesn't resolve the problem, you need to call in an expert.
A locksmith can assist you to replace or locate your lost key fob. A locksmith will likely know the reason why your fob stopped working in the first initial place. 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 existing mechanical backup key (it's usually hidden behind a keychain ornament with a decorative design) and recording it in a secure location, such as in your wallet or on your phone. If you're looking to change the programming of the key fob of your car the locksmith can do it much more quickly.
If your existing key fob is a smart key of the present and you want to change it, you'll need to go to an auto dealer or locksmith to deprogram it and get an entirely new one and this can be more expensive than replacing it. Modern key fobs are secured by rolling-code encryption which stops thieves from gaining access to the car. That means that the locksmith must have an exclusive programming tool that only the vehicle manufacturer has, which increases the overall expense.
In the majority of instances, you'll need to pay for the entire service at once, including any costs to reprogram a new key fob. This could range from around $20 at some shops to over $200 at dealerships for cars, based on the model of vehicle.