How to Repair Car Key Fobs

Even though we test them a lot keys are not impervious to destruction. In fact, they could break down in many different ways.

While the most common problem is the battery being dead however, other issues could be more grave. The majority of these issues can be resolved with a simple fix at home.

Dead Battery

A dead battery is the most common reason for the key fob not functioning. Fob batteries can be drained quickly, especially if they're exposed to extreme conditions like humidity, temperatures or even water. Keep an extra battery in your wallet in case you require it.

You will usually know the moment your car key fob's battery is dying because the light on the LED will cease to glow. It's also possible that your key fob will no longer work at the same distance it used to. In this scenario, it may be necessary to re-program your key fob or replace it altogether.

Fortunately the replacement of the battery in a car key fob is simple. Find out the type of battery that is used. The type of battery should be engraved on the back of your key fob. Google can help if you're not sure. Open the key fob along the seam once you have identified the type of battery. You'll need a small flathead screwdriver or your fingernail to break the two halves. Then, remove the old battery and insert a new one in its place. Place the new battery in such a way that the positive (+) face is facing the buttons on the fob.

Some drivers might not be aware that their fob is dead until they attempt to lock or unlock their vehicle and the buttons don't respond. This can be fixed by reprogramming your fob. However, it can be time-consuming and expensive. Another option is to contact roadside assistance and see if they can jump your vehicle and get you back on the road.

If you have tried both of these solutions but your car won't start then it's time to call a professional. A trained technician will be able to determine if the vehicle's computer system requires reprogramming or if the fob needs a new battery. They may also recommend an auto repair shop that can replace your key fob. Sometimes an entirely new fob might be the best solution.

Damaged Circuit Board

A key fob is not indestructible, but it can withstand a lot of physical harm. The battery, circuit board and buttons will all experience their fair amount of wear and tear over time It is therefore essential to be aware and take care of them to keep your car key fob functioning well.

Make sure that the battery still working in your key fob. Replace the battery to see if it fixes your problem. If this doesn't work, you might need to open the fob and clean its contact surfaces. It isn't easy to open certain key fobs due to the fact that they don't have an easy-release mechanism. You can damage your fob by trying to take it apart. You can purchase a special tool to open your key fob, however it is recommended to follow the manufacturer's instructions to avoid damaging it.

A damaged or defective key circuit board for the fob is another common problem. This can be caused by various factors, including dirt or moisture getting into the battery compartment. Software issues or an accident firmware update could be the cause of this. If your key fob isn't working completely, broken consider having it reprogrammed by a locksmith that specializes in this type of work.

Radio interference is another possibility. It could happen if are other wireless devices that transmit on the same frequency as your key fob, such radar detectors or home security systems. If this is the case, consult with other manufacturers of your device to ensure that your key fob isn't 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 help you fix this yourself. You should be careful when doing this, however, because the circuit board in the key fob is tiny and could easily break if handled roughly. If you're doing it yourself, ensure you use an SMT switch of good quality and put the switch in the correct position.

Buttons that are worn out

Car key fobs are subject to a lot wear and tear. They're susceptible to being dropped and are frequently jostled around in your pocket or purse. Sometimes, this jolting can cause the buttons to become worn out or stuck. If this happens, a simple adjustment may be all that's needed to make it work again.

Modern key fobs are fitted with sensors that can detect when they have been pressed. This is because they lower the chance of someone else stealing your vehicle. If the buttons on your key fob don't respond when pressed, they are worn out and need to be replaced.

Key fobs also contain a circuit board inside them which transmits signals to your car. Those signals include commands to unlock and lock and also commands to start your engine. If the circuit board inside is damaged, your key fob might not unlock or start your engine. This kind of damage is usually caused by blunt force or water.

If you're having to press the buttons harder than usual to get them to function If this is the case, then your key fob's buttons are wearing out. In addition your fob could cease transmitting signals to the car or it'll have less range than it did prior to.

If you're not able to get your key fob to unlock or start your car, you need to call an emergency locksmith in your area. They'll be able to determine whether the key fob is damaged or the ignition cylinder has worn down.

Fortunately, most car keyfob problems aren't too difficult or serious. The best way to ensure you don't get taken by surprise by an unresponsive key fob is to have a spare in your possession at all times. You won't be left stranded because of a malfunctioning or lost key. If you have lost your spare key, a professional locksmith can reset it to work with your vehicle's engine. They can also repair any internal damage to the key fob.

Broken Case

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

If the board is damaged or dead the key car repair fob won't be able to function. A dead key fob may require reprogramming by a local auto locksmith, or dealership.

Another reason your key fob might not be functioning is that the batteries are not working. This is a quick fix that can be accomplished at home by replacing the battery. The positive side is that you can find a replacement battery on the internet or at a local auto parts store since the batteries aren't limited to key fobs.

There are several ways to open the key fob and go inside it, depending on the kind. You can determine the type of battery your key fob uses by doing a quick online search. From there, you can purchase an alternative and then simply pop the old one out and the new one in.

The main concern when you repair a broken car key fob is that you don't want to harm the circuit board or buttons further. When you try to break a key fob with an edge that is sharp like a screwdriver can break the case or crack the plastic. Fortunately, a replacement case isn't expensive and you can buy a whole fob assembly with the electronic components from eBay or Amazon for less than $40.

If your key fob does not work, you should check if you have damaged the circuit board or the batteries. If this is not the situation, you can get it repaired quickly and cheaply by a professional. If not, it could be time to replace the fob. Be sure to check the warranty on any replacement or used fobs that you purchase online.