Who's The Top Expert In The World On Car Key Button Repair? Car Key Button Repair

The buttons on car keys are subject to a lot of pressure and are especially vulnerable if used frequently. This can lead to them becoming faulty over time.

There are a few easy fixes that will allow your keys working again. These methods do not come completely safe however. Altering batteries or altering your key fob's security can be risky. If you are not comfortable with these methods, it's recommended that you consult with a professional auto-locksmith.

Change the Battery

It's possible to change the battery if your key fob doesn't function as it should. You can find replacement batteries in any chain drugstore nationwide or at the parts department of your local dealership for cars. Some manufacturers even include a spare key fob battery in their packaging when you purchase a car from them.

click this will have to do is determine what battery is used in your key fob. The manufacturer should have this information on their website or you can look it up on the actual key fob. Generally, the most common battery used in key fobs is a button cell type similar to the ones used in remote controls and watches. These batteries are available at Walgreens, Energizer and other stores for less than $5 per box of two.

You can take the old battery off your key fob when you know the type of battery it is using. Most key fobs are designed with a notch or a seam between them and can be opened by using your fingers, or by using a flat tool like a screwdriver. After the key fob has been opened, the battery will be released. Then, you can replace it with the same orientation. The majority of key fobs utilize CR2032 3V batteries, which are easily available at many stores that sell AAA and AA batteries.

Once the new battery is inserted after which you can connect the two halves of the key fob back together and test it to make sure that all buttons function properly. You can verify that all functions are working correctly by pressing the lock and unlock button on the key fob, while pointing it at your vehicle. If your car is not responding to the key fob, it may be necessary to reprogram your key fob to establish a wireless connection between the two. Luckily, this is a relatively easy process and only requires the use of your phone or other device to perform the procedure.

Reprogram your key fob

If your key fob doesn't function and you believe it needs to be replaced the fact is that it might not require an entirely new battery, but instead the old one needs to be reprogrammed. This process is different for each car. To find out how to do it go through the owner's manual. It's typically available in PDF format on the automaker website. You can also search YouTube for videos.

In modern vehicles, a specific procedure is required to put the vehicle into "programming mode". This typically involves pressing the power button multiple times on the door of the driver or ignition while simultaneously pressing a button on a fob within a time-specific period. The fob transmits its unique digital identification code to the vehicle, and then will save it. The fob functions as a regular key after it is programmed.

It's important to note that changing the programming of a key fob will wipe out any other key fobs which have been programmed previously. Therefore, if you want to keep other fobs, they should be carefully and swiftly reprogrammed following the initial one.

Sometimes, you can find replacement batteries for car key fobs in hardware stores, big retailers, or even online. You will need to know the model and make before you purchase a fob as it isn't easy to find the right battery.

A CR editor once found a battery that was compatible with the key fob she owned however, it was for a different car. This meant she could start her car and unlock the door, but couldn't lower the windows.

Fortunately, dealers can assist in this case, as most of them have the necessary equipment to reprogram a fob for the specific vehicle. Certain European automobiles, like those manufactured by Audi and BMW, will usually require a dealer to get this service since they utilize specific security features that can only be reset by the manufacturer. Other dealers we spoke to like those at Toyota and Lexus were willing to try reprogramming a replacement fob as provided you know the exact make and model of your car.

Replace the Button

If you've tried changing the battery or reprogramming the key fob and still cannot start your car, it may be time to replace the button on your key. learn more receives a lot of use and jerking over time and can get stuck or even broken. Each time you press the button on your car key fob generates a unique code in a sequence that is recognised by the car's receiver. If you try to operate your vehicle from some distance, it might not recognize you. It might close the doors or turn off the engine.

You can purchase replacement buttons online or in several local hardware stores. They are relatively simple to open and install and require only a small amount of clear plastic tape to cover the old button.

Contact an Auto Locksmith

If you're experiencing a problem with the car key button It could be time to consult the experts. Auto locksmiths specialise in the repair of electronic car keys as well as their associated locks. They have the experience and tools needed to identify and fix a variety of issues with your key fob including replacing batteries and changing their programming. They also have the knowledge and experience to handle more complicated jobs like fixing a broken button or even cutting a new replacement key.


One of the main reasons for a car's key button to stop working is because the switch inside has worn out. This is caused by overuse and exposure to the elements. The switch is constructed of an extremely hard plastic with several switches on its surface. Each switch is responsible for activating the specific function that you use the key to activate. As the switch age it becomes more difficult to turn on these functions. You will have to exert more pressure on the switch to get it to work. This could cause further damage to the switch, thereby reducing its longevity.

The easiest way to solve this issue is to replace the battery inside your car key fob. The majority of cars have lithium-ion button or coin batteries, which you can easily buy at supermarkets, pharmacies and home improvement stores. Once you've replaced the battery your key fob should work again.

If the issue persists, it could be that the contacts in your key fob are worn out. The contacts are made of rubber, and covered by an electrical conducting film that wears out. When you use the keypad, they are exposed to moisture and dust. Eventually, they will wear down until they no longer make contact with the circuit board or sensor underneath the keypad.

The dealership can replace the key fob, but it's costly and takes a lot of time. The other option is to call a local car locksmith, who can repair your key fob and help you save money.