How to Repair a Car Key Fob
The key fob is jostled around a lot, which means the buttons could be damaged or stuck. If it is necessary, give it a good cleaning and replace the battery.
Most cars use the coin-style battery, which you can buy from pharmacies or big box stores as well as home improvement stores. Some models require programming equipment that is only available to dealers.
Dead Battery
The car key fob is a small and convenient device that makes entering your car and starting it more simple than ever. What happens if you push the button few times and your car doesn't respond? The most frequent reason for this is an unresponsive battery. The battery can be replaced easily. You can find replacements in auto parts stores, supermarkets, and some home improvement centers.
However, some of the other features that the key fob offers may not work. This could be due to mechanical issues or an electrical issue inside the car or even a problem with deprogramming in the car's receiver. In these cases it's best to contact a professional.
The majority of manufacturers include a mechanical slot in the fob to be used in the event of a dead cell. In the majority of instances, a cover is attached to the handle of the fob to conceal the key slot. You can insert the actual key into the slot to open your doors and then start your vehicle. Make sure to insert the key fob once you start the vehicle!
If you own a Ford equipped with SYNC Connect, you are able to start the car using the key fob. The cupholder on the majority of Fords with SYNC Connect has a backup "E blade". It is a mechanical key that can be used to press the starter button in the event that your key fob fails to start the car. To make the most effective use of this feature, make sure the battery is fully charged. You can also consult the owner's manual to learn how to do it.
If you're still experiencing issues with your car after changing the key fob battery, it may be time to call an expert locksmith or your dealer to get the battery replaced or to repair the fob. In certain cases, a new battery can be used to program the key fob in your vehicle at the dealership or choose Interstate All Battery Center stores. This will only work so long as the antennas and circuit board aren't damaged.
Damaged Buttons
The buttons on your car key fob are likely to suffer many years of wear and wear over the course of their lives. They're susceptible to droppings, and they are often being tossed around in purses and pockets. This can cause internal components to become damaged or loose, which will cause them to not respond to your press. This issue can be solved by a few simple steps, but you might require the assistance of a locksmith.

The most common reason for a car keyfob that isn't working is that the batteries are dead. These small coin-shaped batteries can be found in a variety of hardware stores and large-box retailers. They are inexpensive. You can also look up videos on YouTube and in your owner's manual which describe how to replace the battery in your key fob.
It's important to remember that certain keyfobs require a specific procedure to enter the required programming mode for changing the batteries. In these instances, you will need to consult the owner's guide and/or an auto locksmith to make sure you are following the proper procedure.
If you leave your key fob in extreme cold or hot temperatures can cause it to stop working particularly if the battery has died. In such a case you'll have to talk to an automotive locksmith or dealer to obtain a replacement fob.
If you're still unable to push the buttons on your key fob, it could be because the contacts 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 solve this issue by taking the key fob apart and putting a piece metallic tape over the worn-out contacts.
It is important to know that some key fobs are extremely difficult to open. They can only be opened with specialized equipment available from a dealership. If you try to open yours using an instrument like a screwdriver or other it's likely that you'll break the internal circuit board and pay an expense for repairs that is higher than you needed.
Circuit Board Issues
If your key fob remains able to unlock your car doors and start your engine but it's not working as far away as it did in the past, the problem may be with the circuit board. The circuit board is an electronic chip that's inside the case. It transmits signals to the car telling it if you want to close the doors, lock the trunk or switch off the ignition. If the circuit board is damaged the key fob won't be able transmit these signals.
Repairing damaged circuit boards by yourself if you have some technical knowledge. Begin by removing the battery and separate the rubber button and holder assembly from the circuit board. Clean the plastic frame and contacts with rubbing alcohol and a cotton swab. This should remove any corrosion that blocks the circuit board from transmitting signals.
After you've assembled your key fob, verify that it can enter the programming mode. Usually this involves switching it off and on several times, so be sure to consult the owner's manual for specific instructions. Many car manufacturers have online videos that explain how to accomplish this. If repair car key are not confident to do this and you are not sure how, you can bring your key fob to an expert locksmith who is knowledgeable about the model of your vehicle.
Some newer key fobs feature a built-in receiver that enables you to open your trunk and lock the doors, and also turn on your ignition and start the engine from a distance. They are generally more reliable and operate across a greater range. If your key fob doesn't work as well as it did previously, it may have an internal issue that isn't working or a faulty external antenna.
The most likely cause for the key fob not working is the battery is dead or not functioning properly. It is cheap and easy to change. If the circuit board or buttons of the fob are damaged, they will require professional repair and reprogrammed. Most dealerships provide this service however, you can locate a shop that is specialized in the model of your car.
Forgotten Key
If you've lost your car key fob, it can be an absolute nightmare. You can turn your home upside down and retrace your steps, and looking everywhere including in drawers, bags and under couches, and even in your cat's bed. You'll eventually find it. The best way to avoid losing your key fob is by taking precautions. If you've even a touch of minor ADD or are just not paying attention, make several copies and hand them out to family and close friends members, so that if you lose yours, you won't spend four hours covered in sweat and cursing yourself for the rest of your life.
Many cars have key fobs that let you to lock and unlock the doors, and in some cases, activate the alarm system or open the trunk. Some of the more sophisticated models offer even cooler features like the ability summon your car using the button. This feature isn't in all models however if you own one of the cars that can do it (Genesis GV60 and Hyundai Sonata are two examples), this is an amazing feature to have.
The good thing is that if you have an extra key fob that's programmed to your vehicle, then you can use it to start your vehicle in the event you lose your original. You can also ask an automotive locksmith to create a key fob that is programmed for your vehicle. Contact your dealer to see if a replacement keyfob is available at a lower cost.
If you don't have a spare key the only method to start your car is to contact an auto locksmith to come out and make a new key or replace the current key fob with blank. A dealer can also do this, but you'll need to get your car towed along with evidence of ownership documents. These services are quite affordable in comparison to the cost of replacing a key at the dealer.