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Five Repair Car Key Lessons Learned From Professionals
How to Repair Car Key Fobs

Even though we put them through a lot keys are not indestructible. They can actually be destroyed in various ways.

While the most common issue is a dead battery but other issues can be more serious. Luckily, most of them can be resolved by a simple DIY fix at home.

Dead Battery

A dead battery is the main cause of a key fob that is not working. Fob batteries are prone to draining quickly, especially if they're exposed to extreme temperatures, humidity or water. It's a good idea keep an extra fob battery in your wallet in case.

The LED light will typically cease to blink when the battery in the car key fob is low. It's also possible that the fob will no longer work from the same distance it used to. In this case, the key fob may need to be reprogrammed or replaced altogether.

Fortunately replacing the battery in a car key fob is easy. First, find out what type of battery is used. The type should be embossed on the back of the fob. If you're not sure, an easy Google search can help. The key fob can be opened across the seam after you have identified the battery type. Use a flathead screwdriver, or your fingernail to pry apart the two halves. Then, take out the old battery and put a new one in its place. Make sure to insert the new battery with the positive (+) side facing upwards towards the buttons on the fob.

Some drivers may not be aware their fob is dead until they try to lock or unlock their car and the buttons do not respond. This can be corrected by reprogramming your fob. However, it can be time-consuming and expensive. Another option is to call roadside assistance and ask them to jump your car and get you back on the road.

If you've tried all three of these methods and your car still won't start, then it's time to contact an expert. A certified technician will be able to determine if the car's computer system needs to be reprogrammed or if the fob requires a replacement battery. They can also recommend a reputable auto repair shop to replace your fob's key. In the end, sometimes a brand new fob is the best solution.

Circuit Board Damage

A key fob is not indestructible, but it is able to be able to withstand a variety of physical damage. The battery, circuit board, and buttons all get their fair share of wear and tear with time and it's crucial to be aware and take care of them in order to keep your car key fob working well.

The easiest thing to check is to make sure the battery in the key fob isn't dying. Replace the battery to see if it fixes your issue. If not, you'll require opening the key fob and clean the contact surfaces. It is sometimes difficult to open certain key fobs due to the fact that they do not have an easy-release mechanism. You could cause damage to your fob by trying take it apart. You can buy a special tool to open your key fob, however it is recommended to follow the instructions of the manufacturer to avoid damaging it.

Another problem that is frequently encountered is a damaged or faulty circuit board in the key fob. This can be due to many things, such as moisture or dirt that gets into the battery compartment software problems or even an unintentional firmware update. If your key fob isn't functioning, you might be interested in having it changed. This can be done by a locksmith who specializes in this type of work.

Radio interference is another possibility. This can happen if there are other wireless devices operating on the same frequency your key fob, for instance radar detectors or home security systems. If this is the situation you need to contact the manufacturer of the other device to ensure that your key fob will not be affected by their signals.

It's also possible that your key fob is equipped with an unreliable switch or electrical component that needs to be replaced. There are online guides that will guide you through the process of fixing this yourself. It is important to be cautious when doing this it is important to be careful, since the circuit boards in the key fob are tiny and easily break in the event of rough handling. If you do this yourself, make sure to use a good quality SMT switch and solder it into place properly.

Buttons that are worn out

Car key fobs can suffer a lot of wear and tear. key repair near me to being dropped, and they often are frequently being tossed around in your pocket or purse. The jolting can cause the buttons to wear down or get stuck. A simple adjustment can fix the problem.

The majority of modern key fobs have sensors on them that can detect if they've been pressed. This is because they reduce the chance of someone else stealing your vehicle. If your key fob's buttons don't respond when pushed, that's an indication that they're worn-out and need to be replaced.


Key fobs also contain a circuit board inside them that sends signals to the car. Those signals include commands to unlock and lock and instructions to start your engine. If your internal circuit board is damaged, your key fob may not unlock your vehicle or start the engine. This type of damage is typically caused by blunt force or water.

If you have to press the buttons more than usual in order to get them to function, then your fob's buttons are getting worn out. Your fob might be unable to send a signal to your vehicle or have a shorter range.

If you're unable get your key fob to unlock or start your car, it's important to contact an emergency locksmith in your area. They can determine if the key fob is damaged or your ignition cylinder is worn out.

Fortunately, most car keyfob problems aren't too difficult or serious. Keep a spare key fob in your car at all times to avoid being surprised by a malfunctioning one. This will ensure that you're not trapped in a place because of the loss or malfunction of your key. If you do lose your spare car key A locksmith can reset it to work with your car's ignition. They'll also be able to repair any internal damage that has been caused to your key fob.

Broken Case

The case of your key fob provides more than just protection for the buttons and battery. It also houses the circuit board responsible for performing all the electrical magic when you hit a button on your key fob. The circuit board relays the signal from your keyfob to your car.

If the board is damaged or dead, your key fob won't be able to operate. A dead key fob may only need to be reprogrammed by a local auto locksmith or dealer.

Batteries could be the cause your key fob's battery not working. This is a simple fix that can be accomplished at home by replacing the battery. You can get the replacement battery from your local auto parts shop or online. These batteries aren't only intended for key fobs.

There are a variety of ways to open a key fob and get inside it, depending on the kind. A quick search on the internet will show you which type of key fob you have and what kind of battery it requires. From there, you can purchase the replacement and simply take the old one out and the new one in.

The most important thing to consider when fixing an old car key fob is that you don't want to damage the circuit board or buttons further. If you try to pry apart the key fob using an instrument like a screwdriver or any other sharp edge, it can crack the plastic or break the case. Fortunately, a replacement case is cheap and you can purchase a whole fob assembly with the electronic components from eBay or Amazon for less than $40.

If your key fob isn't functioning look into whether the batteries are dead or whether the circuit board is damaged. If this isn't the case, you can have it repaired quickly and easily by a professional. If not, it could be time to replace the fob. Just be sure to check for a warranty on any replacement or used fobs you buy online.

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