Repair Car Key 101: The Ultimate Guide For Beginners

Repair Car Key 101: The Ultimate Guide For Beginners

How to Repair Car Key Fobs

Key fobs are susceptible to damage, even if we use them often. In fact, they are able to break down in a variety of ways.

Other issues can be more grave than an unresponsive battery. Fortunately, the majority of these issues can be solved by a simple DIY fix at home.

Dead Battery

A dead battery is the most frequent reason for the key fob not functioning. Fob batteries are prone to draining quickly, particularly if they're exposed to extreme temperatures, humidity or water. Keep an extra battery in your wallet in case you require it.

You can usually tell the moment your car key fob's battery is depleted by the fact that the LED light will cease to glow. It's also possible that the fob won't function from the same distance it used to. In this scenario, the key fob may need to be programmed again or replaced entirely.

Fortunately, replacing the car key fob battery is easy. Find out the type of battery that is used. The type should be engraved on the side of the fob. If you're not sure then doing a quick Google search will help. Open the key fob along the seam once you have identified the battery type. Make use of a flathead screwdriver or even your fingernail, to pry apart the two halves. Remove the old battery and replace it with a brand new one. Insert the new battery so that the positive (+) face is facing the buttons on the fob.

Some drivers may not realize their fob is dead until they attempt to lock or unlock their vehicle and the buttons do not respond. In some instances this problem can be resolved by reprogramming the fob, however, it can be costly and time-consuming. Another option is to contact roadside assistance and ask them to jump your vehicle and get you back on the road.

If you've tried all of these options but your car won't start, then it's time to call a professional. A certified technician can determine if your car's computer needs reprogramming, or if the fob is only in need of a new battery. They can also suggest an auto shop to replace your key fob. Sometimes, however, a new fob could be the best option.

Circuit Board Damage

The key fob isn't indestructible, but it can withstand a lot of physical harm. The circuit board, battery and buttons are all susceptible to wear and tear. It is essential to take care of these components to ensure that your key fob is in good working order.

The most straightforward thing to do is to make sure the battery in your key fob isn't depleted. If it is, replace the battery and see if that fixes your problem. If not, you'll have to remove the key fob and clean the contact surfaces. This can be a challenge since some key fobs don't have easy-release mechanisms to open them and you could harm your device if you attempt to break it. You can purchase a specific tool to open your key fob, however you must always follow the instructions of the manufacturer to avoid damaging it.

Another common problem is a damaged or damaged circuit board in the key fob.  key fob repair near me  can be caused by a number of things, such as moisture or dirt that gets into the battery compartment software problems or even an accidental firmware update. If  keys repair  fob isn't working completely, consider having it reprogrammed by a locksmith that specializes in this kind of work.

Radio interference is another possibility. This could happen if there are other wireless devices operating at the same frequency as your key fob, for instance radar detectors or home security systems. If this is the case, check with the other device manufacturers to make sure that your key fob isn't being affected by their signals.

It's also possible that your key fob has an unreliable switch or electrical component that should be replaced. You can find online guides that show you how to fix this yourself. You should be careful when doing this, however, because the circuit board inside the key fob is tiny and can easily break if handled roughly. If you're doing it yourself, make sure to use an SMT switch that is of high-quality and solder the switch in the correct position.

Buttons that are worn out

Car key fobs are prone to lots of wear and wear and tear. They are prone to getting dropped and spend a lot of time being tossed around in your purse or pocket. Sometimes, this jolting can cause buttons to wear out or snagged. In this case it's possible that a simple adjustment will be all it takes to restore the button's functionality.

Most modern key fobs have sensors on them that tell if they've been pressed. They're designed to detect this to reduce the likelihood of someone stealing your car. If the buttons on your key fob aren't responding when you press them, that's an indication that they're worn out and require to be replaced.

The circuit board that is in the key fob transmits signals to your car. These signals include commands to unlock and lock your car, as well as instructions to start the engine. If your internal circuit board is damaged then your key fob might not unlock your vehicle or even start the engine. This type of damage is usually caused by water or blunt force.

If you have to press the buttons harder than usual to make them function, then your key fob's buttons are wearing out. Your fob could also stop sending signals to your car or have a smaller range.

If you're unable get your key fob to unlock or start your vehicle, it's crucial to call a locksmith in your area immediately. They'll be able to determine whether the key fob itself is damaged or your ignition cylinder has worn down.


Fortunately, most car keyfob problems aren't too difficult or serious. Keep a spare key fob in your vehicle always in case you end up being shocked by a malfunctioning device. This will ensure that you're not left stranded somewhere because of a lost or malfunctioning key. If you have lost your spare key, an expert locksmith can rekey it to work with your vehicle's engine. They'll also be able fix any internal damage that may have been caused to your key fob.

Broken Case

The case of a key fob does more than just protect the buttons and batteries. It also houses the circuit board responsible for performing all the electrical magic when you press the button on your key fob. The board transmits the signal from your keyfob to your car.

If the board is damaged or dead, your key fob won't be able to operate. Sometimes, a key fob that is dead may need to be reprogrammed, which is something your local auto locksmith or dealership can assist you with.

Batteries could be the reason the key fob's not working. The battery can be replaced at home. You can find the replacement battery from the local auto parts store or on the internet. These batteries aren't just for key fobs.

Depending on the kind of key fob, there are various ways to open it up and access the insides. You can determine the type of battery your key fob is using by conducting a quick internet search. You can then buy a new replacement and pop the old one out, and put the new one into.

The biggest concern when repairing a broken car key fob is that you don't want to cause damage to the circuit board or buttons any further. Trying to pry apart the key fob using an edge that is sharp like a screwdriver can damage the case or even damage the plastic. Fortunately, a replacement case is cheap and you can purchase an entire fob with the electronic components from eBay or Amazon for less than $40.

So, if your key fob isn't working, check to see if the batteries are dead or whether the circuit board has been damaged. If this isn't the case, you can have it repaired quickly and easily by an expert. Otherwise, it might be time to consider an upgrade. Make sure you check the warranty on any replacement or used fobs purchased online.