Repair Car Key Tips From The Most Effective In The Industry How to Repair Car Key Fobs

Even though we put them through numerous times, key fobs are not impervious to destruction. They can actually be destroyed in a variety of ways.

While the most common problem is the battery being dead however, other issues could be more grave. Fortunately, many of them can be resolved by making a quick DIY fix at home.

Dead Battery

A dead battery is the most frequent cause of a key fob that is not working. Fob batteries drain quickly, especially when they're exposed to extreme temperatures, humidity or water. It is a good idea to keep an extra fob battery in your wallet in case.

The LED light will typically stop glowing when the battery in your car key fob is low. The fob may be unable to function from the same distance that it used to. In this instance it might be necessary to re-program the key fob or even replace it entirely.

Fortunately, replacing a car key fob battery is simple. First, determine what kind of battery is being used. The type of battery you are using should be stamped on the back of your key fob. If you're not sure, a quick Google search will be helpful. Unlock the key fob across the seam after you have identified the type of battery. You will need to use a small flathead screwdriver or even your fingernail to pry the two halves apart. Remove the old battery and replace it with a brand new one. Then, insert the new battery so that the positive (+) face is facing the buttons on the fob.

Some drivers aren't aware that their fob is dead until they lock or unlock their car, and the buttons don't work anymore. In some instances this problem can be resolved by reprogramming the fob, however, this can be expensive and time-consuming. Another option is to call roadside assistance and see if they are able to jump your car and get you back on the road.

If you've tried all the options and your car still doesn't start, it's the right time to contact a professional. A qualified technician can determine the computer in your car needs changing its programming, or if the fob simply needs a new battery. They can also suggest an auto repair shop that can replace the key fob. Sometimes it is possible that a new fob could be the best option.

Circuit Board Damage

Key fobs can withstand some physical abuse and is not indestructible. The battery, the circuit board buttons, and other components all suffer their fair share of wear and tear over time, so it's important to be vigilant and take care of them to ensure that your car key fob functioning well.

Make sure that the battery still functioning in your key fob. Replace the battery to see if it solves your issue. If not, you might need to open 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 open them up and you could damage your fob if you try to pull it apart. You can purchase a specific tool for opening your key fob. However, you must follow the directions of the manufacturer to avoid damaging it.

Another problem that is frequently encountered is a damaged or corrupted circuit board on the key fob. It can be caused by numerous factors, such as moisture or dirt getting into the battery compartment. Software issues or an unintentional firmware update may also cause this. If your key fob has stopped functioning, you might be interested in having it replaced. This can be accomplished by a locksmith who specializes in this kind of work.

Radio interference is another possible cause. This can occur in the event that 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 manufacturers of your device to make sure that your key fob isn't being affected by their signals.

It is also possible to replace a switch or another electrical component in your key fob. You can find online guides that show you how to fix this yourself. It's important to be careful when you do this, as the circuit boards in your key fob are tiny and are susceptible to breaking in the event of rough handling. If you're doing it yourself, make sure to make use of an SMT switch of good quality and put the switch in place correctly.

Buttons that are worn out

Car key fobs are susceptible to a lot wear and wear and tear. They are more prone to being dropped and spend a lot of time being jostled in your purse or pocket. The constant jostling can cause buttons to wear out or become stuck. A simple adjustment can fix the problem.

Modern key fobs are fitted with sensors that are able to detect when they've been hit. They're made to do this so that they can reduce the likelihood of theft by someone else of your vehicle. If your key fob's buttons aren't responding when you press them, that's an indication that they're worn out and need to be replaced.

The circuit board in the key fob transmits signals to your car. The signals include unlock and lock commands and instructions to start your engine. If the circuit board inside your vehicle is damaged, your key fob may not allow you to unlock your car or even start the engine. This kind of damage is typically caused by blunt force or water.


If you have to press the buttons more than usual in order to make them function, then your key fob's buttons are becoming worn out. Your fob might also stop sending a signal to your vehicle or have a shorter range.

Contact a locksmith right away when you're not able to use your key fob to start your vehicle. They'll be able to determine whether the key fob is damaged or if your ignition cylinder has worn down.

Fortunately, the majority of car key fob problems aren't a major or difficult issue. Keep a spare key fob in your car always in case you end up being surprised by a malfunctioning one. You won't be left stranded due to a malfunctioning or lost key. If you do happen to lose your spare car key, a locksmith will be able to rekey it to work with your car's ignition. They can also fix any internal damage to the key fob.

Broken Case

The case of your key fob is more than just a place to store the battery and buttons. The case also houses the circuitry that performs all the electrical magic whenever you press the button on your key fob. This board takes the signal from your key fob and transmits it to your car.

Your key fob won't work if this board is damaged. A dead key fob may only need to be reprogrammed by a local auto locksmith or dealer.

Batteries could be the reason of your key fob not working. The battery can be replaced at your home. The positive side is that you can find the replacement battery on the internet or at your local auto parts store since these batteries aren't exclusive to key fobs.

Depending on the kind of key fob, there is a variety of ways to open it and get inside. You can determine the type of battery your key fob is using by conducting a quick online search. You can then buy a new replacement and pop the old one out and then put the new one in.

The most important thing to consider when fixing an old car key fob is that you don't want to cause damage to the circuit board or buttons any further. Trying to pry apart repair car key fob using an edge that is sharp like a screwdriver can cause damage to the case or crack the plastic. Luckily, a replacement case is cheap and you can get the entire fob and the electronics on eBay or Amazon for less than $40.

If your key fob doesn't function, make sure you've damaged the circuit board or the batteries. If this is not the case, you can have it repaired quickly and easily by an expert. In the event that it isn't, it's time to invest in a replacement. Just be sure to check for a warranty on any replacement or used fobs you purchase online.