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A Look Inside Car Key Button Repair's Secrets Of Car Key Button Repair
Car Key Button Repair

Car key buttons take a lot of abuse, especially if used frequently. In time, they could become damaged.

There are a variety of quick fixes to get your keys working again. These solutions are not without risk however. Altering batteries or altering your key fob's security can be dangerous. If you're not comfortable doing these yourself, it is recommended that you contact an expert auto locksmith.

Change the Battery

If you are noticing that your key fob is not functioning as it should, it might be time to replace the battery. key fob repair can usually buy replacement batteries from any chain drug store, or the parts department of your car dealership. Some manufacturers even include an extra key fob battery in the packaging when you purchase a car from them.

The first thing you'll need to do is determine what battery is used in your key fob. The manufacturer will likely have this information on their website or you can look it up on the key fob's specifications. The most commonly used battery used in the key fob is a button cell, similar to those used in remote controls and watches. These batteries are available at Walgreens, Energizer and other stores for less than $5 for a pack of two.

You can take the old battery off your key fob when you know what kind of battery it has. The majority of key fobs are made with a notch or a seam that connects them and can be opened by using your fingers or using the flat side of a screwdriver. Once the fob is opened, the battery should pop right out and you can then insert the new one with the same orientation as the old one. The majority of key fobs utilize CR2032 3V batteries, which are accessible at a variety of 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 are functioning properly. You can determine if all functions are working correctly by pressing the lock and unlock button on the key fob, while pointing it at your vehicle. If your vehicle doesn't respond to the fob, you might require reprogramming the fob to establish wireless connectivity. Fortunately, this is an easy procedure and requires the use of your smartphone or another device to do so.

Reprogram the Key Fob

If you're having issues with your key fob, and you think that it's time to get a new one, it might not be required to replace it. Instead the old battery might need to be reprogrammed. This procedure is different for every car. To learn how to go about it you must consult the owner's manual. It's usually available in PDF format on the automaker's website. You can also search YouTube for videos.


Modern vehicles require a specific procedure to put the vehicle into 'programming mode,' which typically involves engaging the power button on the driver's side door or ignition multiple times while pressing the fob's button within a specified time. The fob transmits its digital identification code to the vehicle, which saves it. Once the fob has been programmed, it will perform the same way as a normal key.

It is important to remember that changing the programming of a key fob will erase any other key fobs which have been previously programmed. Therefore, if you wish to keep other fobs, they must be carefully and quickly reprogrammed after the first one.

Sometimes, you can find replacement batteries for key fobs for cars at hardware stores, large retailers, or even online. But, it is important to be aware of the make and model of your vehicle prior to purchasing a battery for your fob because the right kind isn't always easy to locate.

A CR editor stumbled across an battery for her key fob but it was from a different vehicle. This meant that although she was able to start the car and open the doors, she was not able to lower the windows.

Dealers can be extremely helpful in this regard, since they have the equipment necessary to reprogram the fob on the specific vehicle. Dealers are required to carry out this service on some European cars such as Audi and BMW because they have specialized security features that can only be reset by the manufacturer. Certain dealers, like those at Toyota and Lexus were willing to reprogram an alternative key fob provided you knew the exact model and year of your vehicle.

Replace the Button

If you've tried changing the battery, or reprogramming your key fob, and still can't start your car it might be time to replace the button on your key. The key on your car receives many uses and jostling over the years and may get stuck or even broken. Each time you press the button on your key fob emits a different code that is recognized by the car's receiver. When you try to operate your vehicle from a distance without the proper code could cause it to not be able to recognize you and then lock the doors or turn off the engine.

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

Contact an Auto Locksmith

It may be time to consult the experts when you're having issues with your car's key switch. Auto locksmiths specialise in the repair of electronic car keys as well as their associated locks. These experts have the tools and expertise to diagnose and fix various issues with your key fob. This includes replacing batteries and changing their programming. They also have the knowledge and experience to handle more complicated jobs such as fixing broken buttons or cutting a new replacement key.

The switch inside the car key button is usually worn out. This is due to excessive use and exposure to the elements. The switch is made of a hard plastic and has many switches on its surface. Each of these switches is responsible for activating the specific function that you use the key to activate. As the switch gets older over time, it becomes harder to turn on each of these functions. You will have to exert more pressure on the switch in order to make it work. This can cause more damage to the switch, reducing its longevity.

Replace the battery in your key fob. Many models of car use lithium-ion button or coin batteries that you can find at pharmacies, supermarkets and home improvement stores. After replacing the battery, your key fob should be working again.

If the issue persists, it could be because the contacts on your key fob have worn out. The contacts are made of rubber and covered with an electrical conducting film that wears out. As you use the key they are exposed to moisture and dust. Eventually, they will wear down to the point where they're no longer in contact with the circuit board or the sensor beneath the keypad.

The dealership can replace your key fob, but it's costly and take a long time. The other option is to contact an auto locksmith in your area who will be able to fix your key fob and save you money.

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