How to Repair a Car Key Fob
Your key fob gets jostled around a lot, and the buttons could be damaged or stuck. If it is necessary, give it a thorough cleaning and replace the battery.
Most cars are equipped with batteries that look like coins. You can buy at pharmacies, big box stores and home improvement retailers. However, some models require special programming equipment that dealers only have.
Dead Battery
The car key fob makes it easy to start your vehicle, and even get it into. What happens if you press the button a few times, but nothing happens? It's usually due to dying or dead batteries. The battery can be easily replaced. You can locate replacements at auto parts stores, supermarkets, and some home improvement stores.

Other features that are available on the key fob may not work. This could be due to a mechanical issue, an electrical problem or even a programming error within the car's receiver. In these situations it's best to contact an expert.
Most manufacturers include a mechanical slot in the fob that can be used in the event of a dead cell. In most cases, a cover will be attached to the handle of the fob in order to cover the key slot. You can insert the physical key into the slot to unlock your doors and start your vehicle. Be sure to re-insert the key fob when you have started the vehicle!
If you happen to own a Ford vehicle that is equipped with SYNC Connect, there's an additional way you can start the car without using the key fob. The cupholder of most Fords with SYNC Connect has a backup "E blade". This is a key that's mechanical that can be used to push the starter button should your key fob not be able to start the car. To get the most benefit of this feature, make sure that the car battery is charged and review the owner's manual in order to learn what the procedure is.
If your car is still having problems after replacing the battery on your key fob, you may need to contact an expert locksmith or your dealer to have the battery or fob repaired. In certain cases the key fob can be programmed to your vehicle with a new battery at the dealership or at selected Interstate All Battery Center locations. This will only work as long as the antennas and circuit board are not damaged.
Damaged Buttons
Through the course of time, your car key fob's buttons are bound to undergo many wear and tear. They're susceptible to droppings and also are frequently being tossed around in purses and pockets. This can cause internal components to get damaged or loose, which will result in them not responding to your pressing. A few easy steps can usually fix this problem, but sometimes you may have to take your device to a professional locksmith.
Apart from batteries that are dead, the most common reason a car key fob won't work is that it requires new batteries. These little coin-shaped batteries are quite affordable and are easy to find them in hardware stores or big-box retailers. You can also find videos on how to replace the battery for your key fob on YouTube or in your owner's manual.
However, it's important to be aware that some key fobs require a special procedure to enter the programming mode needed to replace the battery. In these instances, you will need to look up the owner's manual and/or an auto locksmith to ensure you are following the correct procedure.
If the battery is not working, leaving your key fob in extreme temperatures can cause it to stop working. In such a case, you'll need to consult an automotive locksmith or your dealer to get a replacement fob.
If the buttons on your key fob still don't respond it could be because 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 solve this issue by disassembling the key fob and putting a piece of metallic tape over the worn-out contacts.
It's important to note that some key fobs can be extremely tricky to open and can't be opened safely without the use of specialized equipment that is only available at a dealership. If you try to open yours using the screwdriver or any other tool, it's possible you could damage the circuit board inside, and incur a more expensive repair bill than you might have otherwise needed.
Circuit Board Issues
If your key fob is still in a position to unlock your car's doors and start your engine but it's not as well as it did previously, the problem may be with the circuit board. The circuit board is an electronic chip that's in the case. It transmits signals to the car that tell it if you wish to close the doors, lock the trunk, or turn off the 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 expertise. Begin by taking the battery off and separating the rubber button and holder assembly from the circuit board. Clean the contacts and plastic frame with rubbing alcohol and a cotton swab. automotive key repair should eliminate 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 repeatedly, so make sure to check your owner's manual for specific instructions. A lot of car manufacturers have videos online that demonstrate how to accomplish this. If you're not confident enough to tackle it yourself, send your key fob to a locksmith that is specialized in the model of your vehicle.
Certain key fobs that are newer have an integrated receiver that lets you to open your trunk and lock the doors, and also turn on your ignition and start your engine from a distance. These are generally more reliable and operate over a wider range. If your latest key fob isn't working as well as it did in the past, it could have an issue with the antenna or other internal issue.
The most likely cause for the key fob not working is the battery is dead or not functioning properly. It's cheap and simple to change. If the circuit board or buttons of the fob are damaged, they will require professional repair and reset. This service is available through many dealerships, however you can find a service specializing in your car brand.
Forgotten Key
When you've lost your car key fob, it's an absolute nightmare. It's possible to turn your home upside down by retracing all your steps and searching all over. This includes in bags, drawers and under couches. You'll eventually find it. Prevention is the best way to ensure that you don't lose your key fob. If you have even a touch of minor ADD or are just forgetful, make multiple copies and hand them out to family and close friends members, so that when you lose yours you don't spend four hours covered in sweat and blaming yourself for the rest of your life.
Most cars have key fobs that let you lock and unlock your doors. They also, in some cases you can set off the alarm or open the trunk. However, a few of the more sophisticated models come with even more exciting features, such as the capability to summon your car with the push of one button. This feature isn't available on all models, but if your car is one of the ones that can do it - like the Genesis GV60 or Hyundai Sonata for instance - then you're in luck.
If you have a spare car key fob that has been programmed to your vehicle, you may make use of it in the event that you lose your original. You can also reach out to an automotive locksmith to have them create an entirely new key fob that has was programmed to your specific vehicle. However, before you do this consult with your dealer to determine if they are able to provide an alternative key fob at a lower cost.
If you don't have spare keys the only way to get your car started is by calling an auto locksmith to come out and cut a new key or replace your current key fob with blank. Dealers can also do this however, you'll need have your car towed in and some proof of ownership papers. These services are quite affordable particularly when compared to the cost of replacing a key at your dealer.