How to Repair a Car Key Fob
Your key fob will likely be jostled a lot. This can cause its buttons to get stuck or damaged. If you need to, give it a thorough cleaning and replace the battery.
The majority of cars have batteries that are coin-style that you can buy at big box stores, home improvement retailers and pharmacies. Certain models require programming equipment that is available only to dealers.
Dead Battery
The car key fob makes it easy to start your vehicle, and then get it started. But what happens when you push the button couple of times and your car doesn't respond? The most common cause for this is a dead battery. The battery is easily replaceable. You can purchase replacements at supermarkets and auto parts stores, as well as some home improvement stores.
However certain other features that the key fob provides may not function. The Keylab could be due to an issue with the mechanism or electrical issue or even a programming error within the car's receiver. In these instances, you should probably consult 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 cases, the key slot is hidden behind a cover on the handle of the fob. You can insert your physical key into the slot to unlock your doors and then start your vehicle. Just don't forget to re-insert the key fob when you have started the car!
If you happen to have a Ford vehicle that is equipped with SYNC Connect, there's another way you can start the car without the key fob. The cupholder in the majority of Fords with SYNC Connect has a backup "E blade". This mechanical key can be used to push the starter button if the key fob you have is not able to start the vehicle. To make the most of this feature, make sure that the car battery is charged and that you read your owner's manual to see what the procedure is.
If your car continues to have issues after replacing the battery on your key fob, you may need to speak with a locksmith or your dealer to have the battery or fob repaired. In certain cases the new battery could be used to program the key fob using your vehicle at the dealership, or you can choose Interstate All Battery Center stores. This is only possible as long as the antennas and circuit board aren't damaged.
Damaged Buttons
Over the course of its life your car key fob's buttons are bound to undergo a lot wear and tear. They are susceptible to being dropped and spend a lot time in purses and pockets. This can cause internal components to become damaged or loose, which will result in them not responding to your pressing. Simple steps can usually resolve this issue, however sometimes you may require taking your fob to an expert locksmith.
The most common reason for a car keyfob that isn't working is that the batteries are dead. These little coin-shaped batteries are quite affordable and it's easy to find them in hardware stores or large-box retailers. 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 also important to be aware that certain key fobs require a particular procedure to enter the programming mode necessary to replace the battery. In these instances, you will need to consult the owner's guide and/or an auto locksmith to ensure you are following the proper procedure.
If the battery is not working, leaving your key fob in extreme temperatures could cause it to stop working. In such a case, you'll need to consult an automotive locksmith or your dealer to get the replacement fob.
If you're still unable to push the buttons on your key fob, it may 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 try to solve this issue by taking the key fob off 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 are only opened with specialized equipment that can be purchased from a dealer. If you try to open it using the use of a screwdriver or other tool, you could end with damage to the circuit board. This could result in an even more costly repair bill.
Circuit Board Issues
The circuit board could be the reason behind your key fob not functioning as well as it used too. The circuit board is a small electronic chip inside the case that sends signals to your car, telling it to close your doors, lock the trunk and even turn off your ignition. If the circuit board is damaged, your keyfob will not be able transmit these signals.
If you have the technical know-how you can repair damaged circuit boards yourself. Remove the battery, and then take the rubber button assembly and holder from the circuit board. Clean the contacts and plastic frame using rubbing alcohol and cotton swab. This should eliminate any rust that blocks the circuit board to transmit signals.
Once you've reassembled the key fob, ensure that it can enter its programming mode. Usually, this means switching it off and on several times, so check your owner's manual for specific instructions. The majority of car manufacturers have videos on the internet that show you how to do this. If you're not sure how to do it then you can take your key fob into the locksmith that specializes in the vehicle model you have.
Certain of the latest key fobs come with a receiver built in that allows you open your trunk, lock your doors and turn on your ignition from some distance. These are generally more reliable and work over a wider range. If your key fob doesn't work as far as it did in the past it could be due to a faulty internal problem or an antenna that isn't functioning properly.
If you can't get your key fob to function the most likely reason is the battery is dead. It is cheap and easy to replace. If the circuit board or buttons of the fob are damaged, they will require professional repair and reset. The majority of dealerships offer this service but you can also locate a shop that is specialized in the model of your car.
Forgotten Key
It's an absolute nightmare if you lose the car key fob. It's possible to turn your house upside down, retracing your steps, and looking everywhere, including in bags, drawers and under couches, and even your cat's bed. In the end, you'll find it. Prevention is the best method to avoid losing your key fob. If you have even a little ADD or are just not paying attention, make several copies and hand them out to close friends and family members, so that if you lose yours, you won't spend 4 hours sweating and blaming yourself for the rest of your life.
The majority of cars have key fobs that allow you to lock and unlock your doors. They also in some cases set off an alarm or open the trunk. However, a few of the more sophisticated models have even cooler features, like the ability to summon your car at the touch of a button. This feature isn't included in every model, but if you have one of the cars that do it (Genesis GV60 and Hyundai Sonata are two examples) This is an awesome feature to have.
The good thing is that if you have a spare key fob programmed to your car then you can use it to start your car in the event you lose the original. You can also ask an automotive locksmith to make a key fob that is specifically programmed for your vehicle. Contact your dealer to determine whether a replacement keyfob might be available at a lower price.

If you don't own a spare, the only way to start your vehicle is to contact an auto locksmith to replace your existing key fob or cut an entirely new one. Dealers can also help with this, but you'll need to bring your vehicle in and provide proof of ownership papers. But the good thing is that these services are inexpensive, especially compared to getting a new replacement key from your dealership, which can cost $200-$250.