How to Repair a Car Key Fob

Your key fob will likely be jostled often. This can cause the buttons to become stuck or break. Try giving it a thorough check and then swapping the battery, if needed.

Most cars use batteries that look like coins. You can buy at pharmacies or big box stores as well as home improvement retailers. However certain models require special programming equipment that is only available to dealers.

Dead Battery

The car key fob is a small and handy little device that makes entering your car and starting it easier than ever. But what happens if you push the button few times, and your car doesn't respond? This usually happens due to a dead or dying battery. Fortunately, the battery can be easy to replace. You can find replacements in auto parts stores, supermarkets, and some home improvement centers.

A few of the other features that are available on the key fob might not function. This could be due to a mechanical issue or an electrical issue, or even a mishap with the deprogramming in the car's receiver. In these cases it's recommended to call an expert.

Most manufacturers have an electronic slot inside the fob to be used in case of a dead cell. In most cases, the key slot is hidden behind a cover on the fob handle. The key's physical form can be put into the slot which will allow you to unlock your door and start your car. Be sure to re-insert the key fob once you start your vehicle!

If you own a Ford equipped with SYNC Connect, you can start the car using the key fob. The cupholder of 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 should your key fob fail to start the vehicle. To get the most out of this feature, ensure that the battery in your car is fully charged and that you go through the owner's manual to see what the procedure is.

If you're having problems with your car after changing the battery on your key fob it could be the right time to contact a locksmith or your dealership to have the battery replaced or 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 as long as the circuit board and antennas have not been damaged.

Damaged Buttons

Through the course of time your car key fob's buttons are bound to see many wear and wear and tear. They're susceptible to droppings and are frequently being carried around in purses and pockets. This can cause internal components to become damaged or loose, which will cause them to not respond to your touch. This problem can be fixed with a few easy steps, however you may be required to speak with a locksmith.

Aside from how to repair car key fob can't function is because it requires new batteries. These little coin-shaped batteries are relatively inexpensive and are easy to find them at hardware stores or large-box retailers. You can also look up videos on YouTube and in your owner's manual which explain how to replace the battery on your key fob.

It is important to know that certain keyfobs require an exact procedure to enter the necessary programming mode for changing the batteries. In these instances you'll need to look up the owner's manual and/or an auto locksmith to make sure you are following the correct procedure.


The fob you have left in extreme hot or cold temperatures could cause it to stop working particularly if the battery has died. In this instance, you'll need to consult an automotive locksmith or dealer for 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 off and putting a piece of metallic tape over the worn out contacts.

It is important to know that certain key fobs can be extremely tricky to open and cannot be opened safely without specialized equipment only accessible at a dealer. If you attempt to open it with a screwdriver, or any other tool, you may end up damaging the internal circuit board. This could lead to an even more costly repair cost.

Circuit Board Issues

If your key fob remains able to unlock your car's doors and start your engine, but it's not as well as it used to it could be a problem with the circuit board. key repair car is an electronic chip in the case. It sends signals to the car that tell it if you want to lock the doors, open the trunk or shut off the ignition. If the circuit board is damaged the key fob won't be able to send these signals.

If you are skilled in the field you can fix damaged circuit boards yourself. Take the battery off, then separate the rubber button assembly and holder from the circuit board. Use a cotton swab and some rubbing alcohol to clean around the contacts and plastic frame. remote car key repairs should eliminate any rust that's preventing the circuit board from transmitting signals.

Then, once you've reassembled the key fob, make sure it is able to enter programming mode. Go through the owner's manual to find instructions. Many vehicle manufacturers have videos online that demonstrate how to do it. If you are not confident to complete the task, you can bring your key fob to an expert locksmith who is knowledgeable about the model of your car.

Some newer key fobs feature a built-in receiver that allows you to open your trunk and lock the doors, and also turn on your ignition and start the engine from an extended distance. In general, they are more reliable and can work over a greater range. If your key fob that is newer isn't functioning as far as it did in the past, it could have an issue with the antenna or other internal problem.

The most likely cause for a key fob not working is an insufficient or dead battery. It's cheap and simple to change. However, if the fob's buttons or circuit board are damaged, you'll need to have it professionally repaired and changed to a new program. This service is offered by the majority of dealerships, but you can find a shop specializing in your car brand.

Forgotten Key

When you've lost your car keys fob, it's an absolute nightmare. You can turn the house upside down by retracing all your steps and looking everywhere. This includes in bags, drawers and under couches. In the end, you'll find it. However, the best way to avoid losing your key fob is by taking precautions. If you've got even a hint of ADD or are just not paying attention, make several copies and give them to close friends and family members, so that when you lose yours you don't spend 4 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 doors, and in some instances 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 a button. This feature isn't available on all models however if your car is one of the models that can be controlled - the Genesis GV60 or Hyundai Sonata for instance and you're a lucky person, then you're in good hands.

If you have an extra car key fob that has been programmed to your vehicle, you can make use of it in the event that you lose your original. You can also contact an automotive locksmith to create an electronic key fob that can be programmed to your vehicle. Contact your dealer to determine whether a replacement keyfob is available for sale at a lower cost.

If you don't have spare keys, the only method to start your car is by calling an auto locksmith to come out and either make a new key or replace your current key fob with a blank. Dealers can also do this but they will need your car to be towed as well as proof of ownership. The good thing is that these services are fairly affordable, especially when compared to getting a new replacement key from your dealership that could cost anywhere from $200 to $250.