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Everything You Need To Learn About Car Key Button Repair
Car Key Button Repair

Car key buttons take many abuses, especially if used frequently. Over time, they can become faulty.

Fortunately, there are several quick fixes to get your keys working again. These solutions are not completely safe, however. Changing batteries or tampering your key fob's security can be risky. If you're not confident with these methods, it is recommended to seek advice from a professional auto-locksmith.

Change the Battery

It's possible to replace the battery in your key fob if it no longer works as it should. You can typically purchase replacement batteries from any chain drug store, or the parts department at your car dealership. Some manufacturers will even include a spare key fob battery in the packaging when you purchase your car from them.


It is first necessary to find out what kind of battery is being used in your key fob. This information is usually available on the site of the manufacturer or by looking at the key fob. The most common type of battery in keyfobs is the button cell that is like the ones found in watches and remotes. These kinds of batteries are typically available at stores like Walgreens and Energizer, and are available for purchase for less than $5 for a pack of two.

Once you know what kind of battery your key fob has you can open it and take out the old battery. You can open most key fobs by using your fingers or a flat tool, like a screwdriver, at the seam or notch at which they connect. Once the fob is opened, the battery will be able to pop out and you can insert the new one with the same orientation as the previous one. A lot of key fobs are powered by CR2032 batteries. These batteries can be found at stores that sell AAA or AA batteries.

After the new battery has been in place after which you can snap the two halves of the key fob together and test it to ensure that all buttons function properly. You can verify that all functions are working correctly by pressing the lock and unlock buttons on the key fob, while pointing it towards your vehicle. If your vehicle is still not responding to the key fob, it may be required to reprogram the key fob and establish an internet connection between the two. This is a fairly simple process that only requires a phone or other device.

Reprogram the Key Fob

If your key fob does not function and you believe it's time to replace it It may not require an entirely new battery, but rather the original one must be reprogrammed. This procedure differs for each vehicle. To learn how to go about it you must consult the owner's manual. It's typically available in PDF format on the automaker web site . You can also search YouTube for videos.

In most modern vehicles, a particular procedure is required to put the vehicle into 'programming mode'. This usually involves pressing the power button several times on the door of the driver or ignition while simultaneously pressing the button on the fob within a specific time frame. This is how the fob transmits its digital identification code to the vehicle, and it stores it in memory. Once the fob is programmed, it will perform the same way as a normal key.

Reprogramming a fob will erase any previous keyfobs. Therefore, if you'd like to keep other fobs, they need to be reprogrammed with care and speed following the initial one.

Sometimes you can find replacement batteries for car key fobs at hardware stores, major retailers, or even on the internet. It is important to be aware of your car's model and make prior to deciding to purchase a fob because it isn't easy to locate the right battery.

A CR editor stumbled across an battery for her key fob however, it was from a different vehicle. This meant that, while she was able to start the car and unlock the doors, she wasn't able to lower the windows.

Fortunately, dealers can help in this situation, as most of them have the tools needed to reprogram a fob into specific cars. Dealers are required to carry out this service on some European automobiles like Audi and BMW because they come with specialized security features that can only be reset in the factory. Certain dealers, like those at Toyota and Lexus were willing to reprogramme a replacement key fob provided you knew the exact model and brand of the car you own.

Replace the Button

If you've tried changing the battery and programming the key fob and still can't start your car it may be time to replace the button on the key. The car key button gets a lot of use and jolting over time and may get stuck or even broken. Every time you press the button on your key fob, the unique code is sent out in a sequence that the receiver inside the vehicle is able to recognize. If you attempt to operate your vehicle from some distance, it might not recognise you. It might close the doors or turn off the engine.

You can buy replacement buttons online or at many local hardware stores. It is easy to install buttons and they are very simple to open.

Contact an Auto Locksmith

If you're experiencing a problem with the car key button, it may be time to contact the experts. Auto locksmiths are experts in the repair of electronic keys and locks. These specialists have the knowledge and tools required to recognize and fix a range of issues with your key fob, including replacing batteries and changing their programming. They also have the knowledge and experience to handle more complicated tasks like fixing damaged buttons or cutting a replacement key.

The switch on the button for the car key is typically worn out. Excessive use and exposure to elements are the primary reasons. The switch is typically made from a hard plastic and it has several different switches that are located on the surface. Each switch activates the function that you select with the key. As the switch ages, it becomes more difficult to activate these functions. As a result, you'll need to push down more force on the switch in order to make it work. This can further damage the switch and reduce the life span of the switch.

The most straightforward solution to this problem is to replace the battery in the key fob of your car. Many models of car use lithium-ion coin or button batteries that you can find in supermarkets, pharmacies, and home improvement stores. Your key fob will be working after replacing the battery.

If the issue persists it could be because the contacts inside your key fob are worn out. The contacts are made of rubber and coated with an electrically conducting film, which can wear down over time. They are exposed to the elements as you use the keypad which means they are constantly exposed to dirt and moisture. They will eventually wear to the point where they are unable to contact with the circuit board, or the sensor underneath the keypad.

The dealership can replace your key fob, however it's costly and take a lot of time. You can also contact an emergency locksmith who will repair your key fob at a lower price.

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