How to Repair a Car Key Fob
Your key fob is likely to be tossed around often. This can cause the buttons to become stuck or break. Try giving it a good clean and then swapping the battery, if necessary.
Most cars are equipped with a coin-style battery that you can buy at pharmacies or big box stores as well as home improvement stores. Certain models require programming equipment that is only available to dealers.
Dead Battery
The car key fob is a small and useful device that makes entering your car and starting it much easier than ever. But what happens when you push the button a few times, and your car isn't responding? The most common cause for this is the battery is dead. The battery is easily replaceable. You can find replacements in auto parts stores and supermarkets and also at some home improvement stores.
However there are other features that the key fob offers may not function. This could be due to an issue with the mechanism or electrical issue or even a programming error in your car's receiver. In these situations you should definitely call an expert.

Most manufacturers include an electronic slot inside the fob that can be used in the event of dead cells. In most instances, a cover is placed on the handle of the fob to hide the key slot. You can insert the physical key into the slot to unlock your doors and then start your vehicle. Be sure to re-insert the key fob when you start your vehicle!
If you have a Ford equipped with SYNC Connect, you can start the car using the key fob. Most SYNC Connect equipped Ford vehicles come with an alternative "E-blade" within the cupholder. This is a key that's mechanical that can be used to press the starter button should your key fob fails to start the car. To make the most effective use of this feature, make sure the battery is charged. You can also refer to your owner's guide to find out how to do it.
If your car is still having problems after changing the battery in your key fob, you may need to contact a locksmith or your dealer to get the battery or fob repaired. In some instances the key fob could be programmed to your vehicle by replacing the battery at the dealership or at selected Interstate All Battery Center locations. However, this can only be done when the circuit board and antennas have not been damaged.
Damaged Buttons
Over the course of time your car key fob's buttons are bound to be subjected to many wear and wear and tear. They are susceptible to falling and are often sat in purses and pockets. This jolting can cause the internal components to become loose or damaged, leading to them not responding when you press them. This issue can be solved by a few simple steps, but you might also need to consult a locksmith.
The most frequent reason for a car keyfob that isn't working is that the batteries are dead. These tiny coin-shaped batteries are available in a variety of hardware stores and large-box retailers. They aren't expensive. You can also find videos explaining how to replace the battery in your key fob on YouTube or in your owner's manual.
It's important to note that certain keyfobs require an exact procedure to enter the appropriate programming mode to replace the batteries. In these instances, you will need to look up the owner's manual and/or an auto locksmith to make sure you are following the proper procedure.
If the battery is dead, leaving your key fob exposed to extreme temperatures can cause it to stop working. In such a case you'll need to contact an automotive locksmith or your dealer to obtain the replacement fob.
If you are still unable to press the buttons on your key fob, it could be due to the fact that 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 repair this by taking the key fob off and putting a piece metallic tape over the worn out contacts.
It's important to note that some key fobs can be extremely tricky to open and cannot be opened safely without the use of specialized tools that are only available at a dealership. If you attempt to open it with 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
The circuit board could be the reason behind your key fob's not working as well as it used as well. The circuit board is an electronic chip in the case that sends signals to your car, telling it whether or not to lock your doors, open the trunk and even switch off your ignition. If the circuit board is damaged the key fob won't be able to transmit these signals.
Repairing damaged circuit boards at home if you have some technical knowledge. Begin by taking the battery off and taking the rubber button and holder assembly from the circuit board. Clean key fob repairs and contacts with rubbing alcohol and a cotton swab. This should remove any corrosion that blocks the circuit board from transmitting signals.
Once you've reassembled the key fob, make sure it is able to enter programming mode. Usually, this means switching it off and on several times, so be sure to consult your owner's manual for specific instructions. A lot of car manufacturers have online videos that explain how to accomplish this. If you're not sure how to complete the task 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.
Certain key fobs that are newer have a built-in receiver that enables you to open your trunk and lock the doors, as well as switch on the ignition and start your engine from some distance. They're generally more reliable and operate across a wider area. If your newer key fob isn't working as far away as it did in the past, it could have an issue with the antenna or other internal issue.
The most likely reason for a key fob that isn't working is a dead or low battery. It's inexpensive and easy to replace. But if the fob's buttons or circuit board has been damaged, you'll need be able to have it repaired professionally and reset. This service is available through many dealerships, however you can also find a shop that is specialized in your specific car model.
Forgotten Key
When you've lost your car key fob, it can be an absolute nightmare. You could turn your home upside down and retrace your steps, and looking everywhere including in bags, drawers or under couches, and even in your cat's bed. You'll find it eventually. The best way to avoid losing your key fob is by taking preventative measures. If you're prone to forgetfulness or even a touch of ADD, make several copies and give these to your family and friends so that you won't be shivering and wailing for four hours if you lose your key fob.
A lot of cars come with key fobs that allow you to lock and unlock doors, and in certain cases activate the alarm system or open the trunk. But a few of the more advanced models come with even more exciting features, such as the ability to call your car at the press of one button. This feature isn't in every model but 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.
If you have a spare car key fob that has been programmed to your vehicle, you can use it in the event you lose the original. You can also talk to an automotive locksmith and request them create a new key fob that's specifically programmed for your vehicle. But before you do, check with your dealership to see if they can provide an alternative key fob at a cheaper cost.
If you don't have an extra key, the only way to start your car is to call an auto locksmith who will replace your existing key fob or make a new one. Dealers can also do this however, you'll need bring your vehicle in along with evidence of ownership documents. But the good thing is that these services are fairly affordable, particularly when compared with buying a new key from a dealership that could cost anywhere from $200 to $250.