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How to Repair Car Key Fobs

Key fobs are susceptible to damage even if we use them a lot. They can actually break down in different ways.

Other issues could be more serious than an unresponsive battery. Most of these issues can be resolved with a simple fix at home.

Dead Battery

A dead battery is likely the most common reason why the car key fob stops functioning. Fob batteries can deplete quickly, especially when they are exposed to extreme heat or humid temperatures or even water. It's a good idea keep an extra fob battery in your wallet just in case.

The LED light will typically stop blinking when the battery in the car key fob is low. It is also possible that the fob will no longer work from the same distance as it did in the past. In this instance the key fob could need to be programmed again or replaced completely.

Fortunately replacing the car key fob battery is simple. Find out the type of battery that is used. The type should be embossed on the back of the fob. If you are not sure then a quick Google search will help. Open the key fob across the seam after you have identified the type of battery. Use a flathead screwdriver, or even your fingernail to break the two halves. Then, you can remove the battery that was removed and replace it with the 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 may not be aware the fob is dead until they attempt to lock or unlock their car and the buttons aren't responding. In some instances, this can be solved by reprogramming the fob, but that can be costly and time-consuming. Another option is to call roadside assistance and ask them to jump your vehicle and get you back on the road.

If you've tried every solution but your vehicle doesn't turn on, it's time to contact a professional. A qualified technician will be able to determine if the vehicle's computer system requires reprogramming or if the fob needs a replacement battery. They can also recommend a reputable auto shop to replace your fob's keys. In the end, though, sometimes a brand new fob is the most effective solution.

Circuit Board Damage

Key fobs can withstand many physical abuses and is not impervious to destruction. Battery, circuit board and buttons are all subject to wear and wear and tear. It is essential to take care of these components to ensure that your key fob is in good condition.

The easiest thing to check is to make sure the battery in the key fob isn't dying. If it is then replace the battery and check if it fixes your problem. If not, you'll require opening the key fob and clean the contact surfaces. This can be a challenge because some key fobs don't have easy-release mechanisms that allow you to unlock them and you may damage your fob if you try to force it apart. You can buy a tool for opening your key fob. However, you should always follow the instructions of the manufacturer to avoid damaging it.

Another issue that is common is a damaged or corrupted circuit board in the key fob. It can be caused by numerous factors, such as moisture or dirt getting into the battery compartment. Software issues or an accident firmware update could be the cause for this. If your key fob has stopped working, you may think about having it replaced. This can be accomplished by a locksmith that specializes in this type of work.

Radio interference is another possibility. This can occur when you have other wireless devices that transmit at the same frequency, such as radar detectors or home security systems. If this is the case, check with the other device manufacturers to ensure that your key fob isn't being affected by their signals.

It's also possible that your key fob may have an unreliable switch or electrical component that must be replaced. This is a more difficult fix however, you can find guides online that show you how to do it yourself. Be cautious when doing this, as the circuit boards that are inside the key fob are tiny and are susceptible to breaking if they are handled roughly. If you're doing this yourself, be sure to make use of an SMT switch of good quality and put the switch in place in a proper manner.

Buttons that are worn out

Car key fobs are prone to a lot wear and tear. They're prone to being dropped and often spend a lot of time moving around in your purse or pocket. The jolting can cause buttons to wear out or get stuck. When this happens an easy adjustment could be all it takes to make it work again.

Most modern key fobs have sensors on them that can detect when they've been used. This is because they lower the chances of someone stealing your vehicle. If the buttons on your key fob aren't responding when pushed it's a sign that they're worn out and require to be replaced.

Key fobs also have an internal circuit board which transmits signals to your car. These signals include commands to unlock and lock your car, as well commands to start the engine. If the circuit board inside is damaged, then your key fob may not unlock or start your engine. This kind of damage is typically caused by water or blunt force.

If you have to press the buttons harder than usual in order to activate them the fob's buttons are becoming worn out. Additionally, your fob may cease transmitting signals to the electronic car key repair near me or have less range than it did prior to.

Contact a locksmith right away if you are not able to use your key fob for your vehicle. They'll be able to tell whether the key fob itself is damaged or the ignition cylinder is worn out.

Fortunately, most car keys repairs keyfob issues aren't very complicated or even serious. The best way to avoid being taken by surprise by a malfunctioning key fob is to have an extra key in your possession at all times. You'll never be stranded because of a malfunctioning or lost key. If you lose your spare key an expert locksmith can rekey it to work with your vehicle's engine. They'll also be able to repair car remote control key any internal damage that has occurred on the key fob.

Broken Case

A key fob's case does more than just protect the buttons and battery. The case also houses the circuitry that does all the electrical magic when you press the button on your key fob. The board transmits the signal from your key fob to your car.

If this board is damaged or dead, your key fob won't be able to function. Sometimes, a dead key fob will just need to be reprogrammed which is something your local auto locksmith or dealership can assist you with.

Another reason why your key fob may not be functioning is that the batteries are dead. The battery can be replaced at home. The positive side is that you can locate the replacement battery online or at your local auto parts shop since the batteries aren't limited to key fobs.

Depending on the type of key fob, there is different ways to open it and access the insides. A quick search online should identify the type of key fob you have and what kind of battery it takes. From there, you can purchase a replacement and easily pop the old one out, and then the new one in.

When repairing a broken key fob, the primary goal is not to harm the circuit or buttons further. If you attempt to remove the fob using a hard edge like a screwdriver could break the case or scratch the plastic. Fortunately, a replacement for the case is inexpensive and you can buy an entire fob with the electronics from eBay or Amazon for less than $40.

If your key fob isn't working, check to see if the batteries are dead or if the circuit board has become damaged. If this is not the case, you can have it repaired quickly and inexpensively by a professional. If not, it might be time to replace the fob. Just be sure to check for a warranty on any used or replacement fobs you purchase online.