How to Repair a Car Key Fob
The key fob is jostled around a lot, so the buttons could become stuck or damaged. You can try giving it a thorough check and then swapping the battery, if necessary.
Most cars use a coin-style battery that you can buy at pharmacies, big box stores and home improvement retailers. Some models require programming equipment that is available only to dealers.
Dead Battery
The car key fob can make it easier to start your car and even get it into. What happens if you press the button multiple times but nothing happens? This is usually caused by an inactive or dying battery. Fortunately, the battery can be simple to replace. You can find replacements in auto parts stores, supermarkets and even some home improvement centers.
However there are other features that the key fob offers may not function. This could be due to an issue with the mechanical system or electrical issue or even a programming error in the car's receiver. In these situations, you should probably call a professional.
Most manufacturers have an electronic slot inside the fob that can be used in case of dead cells. In the majority of cases, the key slot is hidden behind a cover on the handle of the fob. You can insert the physical key into the slot to unlock your doors and then start your vehicle. Make sure to insert the key fob back into the slot once you have started the car.
If you happen to have a Ford car that has SYNC Connect, there's another method of starting the car without the key fob. Most of the SYNC Connect equipped Ford vehicles have an alternative "E-blade" inside the cupholder. It is a mechanical key that can be used to push the starter button in the event that your key fob not be able to start the car. To get the most benefit of this feature, make sure that your car's battery is charged and that you read your owner's manual to learn what the procedure.
If you're still having issues with your car after changing the key fob battery It could be the right time to call an expert locksmith or your dealer to get the battery replaced or the fob repaired. In some cases the key fob can be programmed to your car with a new battery from the dealership or at select Interstate All Battery Center locations. However, this can only be done in the event that the circuit board and antennas aren't damaged.
Damaged Buttons
The buttons on your car key fob are likely to suffer many years of wear and wear and tear throughout their lives. They are susceptible to dropping, and they spend a lot of time being tossed around in purses and pockets. The jolting could cause the internal components to become loose or damaged, leading to them not responding when you press them. This issue can be resolved by a few simple steps, but you may require the assistance of a locksmith.
Aside from an inoperable battery The most frequent reason why a key fob for a car can't function is because it requires new batteries. These small coin-shaped batteries are sold at a majority of hardware stores as well as large-box retailers. They aren't expensive. You can also look up videos on YouTube and in the owner's manual of your device that describe how to replace the battery on your key fob.

However, it's important to know that some key fobs require a particular procedure to enter the programming mode necessary for changing the battery. In these instances, you'll need to consult the owner's manual as well as an authorized auto locksmith to ensure that you're following the correct procedure.
The fob you have left in extreme cold or hot temperatures can also cause it to stop working, especially when the battery has failed. In such a case you'll have to talk to an automotive locksmith or dealer to get an alternative fob.
If your key fob's buttons aren't responding, it could be that the contacts inside are worn out. These contacts are rubber-like and coated with an electricity-conducting film, but they can start to wear out over time due to repeated use. You can fix this problem by dismantling the key fob and putting the metallic tape over the worn-out contacts.
It's important to remember that some key fobs can be extremely tricky to open and cannot be opened with confidence without the right equipment that is only available at a dealership. If you try to open it using an screwdriver, or any other tool, you may end in causing damage to the internal circuit board. This could lead to an expensive repair bill.
Circuit Board Issues
If your key fob remains able to unlock the doors of your car and start your engine, but it's not working as far away as it did previously it could be a problem with the circuit board. The circuit board is an electronic chip within the case. It transmits signals to the car that tell it if you want to close the doors, lock the trunk or switch off the ignition. If the circuit board is damaged, your keyfob will not be able to send these signals.
If you have the technical know-how, you can repair a damaged circuitboard yourself. Remove the battery, and then separate the rubber button assembly and holder from the circuit board. Make use of a cotton swab or some rubbing alcohol to clean around the contacts and the plastic frame. This should remove any corrosion that has stopped the circuit board from transmitting signals.
After you've assembled the key fob, make sure it can enter its programming mode. Usually this involves turning it on and off several times, so check the owner's manual for specific instructions. Many car manufacturers also have videos online that show you how to do this. If you are not confident to do it, you can bring your key fob to an expert locksmith who is knowledgeable about the vehicle model you have.
Some of the more modern key fobs come with an integrated receiver which allows you to unlock your trunk, open your doors and turn on your ignition from some distance. They are generally more reliable and operate over a greater range. If your newer key fob isn't functioning as far as it used to, it could have a faulty antenna or some other issue within the internals.
If you can't get your key fob to function, the most likely culprit is an inoperative battery. It is cheap and easy to replace. If the circuit board or buttons on the fob are damaged, it will need to be professionally repaired and programmed again. Many dealerships offer this service but you can also find a service that specializes in the brand of your car.
Forgotten Key
When you've lost your car keys fob, it can be a nightmare. You can turn your house upside down by retracing all your steps and looking everywhere. This includes in drawers, bags and under couches. You'll find it eventually. It is best to take preventative measures as a way to prevent losing your key fob. If you're susceptible to forgetfulness or have a hint of ADD Make several copies and distribute them to family and acquaintances so that you don't be shivering and wailing for 4 hours if you lose your key fob.
Many cars come with key fobs that let you to lock and unlock the doors, and in some instances, activate the alarm system or open the trunk. However, a few of the more advanced models come with even more exciting features, like the ability to summon your car at the touch of one button. This feature isn't available on all models however if your vehicle is one of the ones that can be controlled - the Genesis GV60 or Hyundai Sonata for example - then you're fortunate.
If you have an extra car key fob that has been programmed to your vehicle, you can use it in the event you lose the original. You can also contact an automotive locksmith to design a key fob that is programmed for your vehicle. However, before you do this consult with your dealer to see if they can provide the replacement key fob for you at a lower cost.
If you don't have a spare key, the only method to get your car started is to contact an auto locksmith to come out and either cut a new one or replace the current key fob with an empty. Dealers can also help, but they'll require your car to be towed and proof of ownership. The good thing is that these services are affordable, particularly when compared with purchasing a new key from your dealership that can cost between $200 and $250.