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How Car Key Button Repair Is A Secret Life Secret Life Of Car Key Button Repair
Car Key Button Repair

Car key buttons undergo lots of abuse particularly if they are used frequently. Over time, they can become damaged.

There are many quick solutions to get your keys working again. However, these solutions come with risks when it comes to changing batteries or altering your key fob. If you're not confident with these methods, it is recommended to seek advice from an expert auto-locksmith.

Change the Battery

It could be time to replace the battery in the case that your key fob no longer works as it should. You can find replacement batteries at any national chain drugstore or at the parts department at your local dealership for cars. Some manufacturers will even include an extra key fob battery in their packaging when you purchase your car from them.

The first thing you will have to do is find out what kind of battery your key fob uses. The manufacturer should have this information on their website, or you can check the key fob itself. Generally, the most common battery used in the key fob is a button cell similar to the ones 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.

Once you know what kind of battery your key fob uses, you can open it and take out the old battery. It is possible to open most key fobs using your fingers or a flat tool like a screwdriver, at the seam or notch where they join. After the fob has been opened, the battery should pop right out and you can then put in the new one in the same direction as the previous one. Most key fobs use CR2032 3V batteries, which are readily available at many stores that sell AAA and AA batteries.

linked here can join the two halves together after inserting the new battery and test the key fob to make sure that all buttons work correctly. You can determine if everything is working properly by pressing the lock and unlock buttons on the key fob while pointing it toward your vehicle. If your car is not responding to the key fob, it could be necessary to reprogram the key fob and establish an electronic connection between the two. It's quite simple and requires only the use of your smartphone or another device to accomplish this.

Reprogram your key fob

If you're having trouble with your key fob and believe it needs a new one however, it may not be required to replace it. Instead the battery you have may need to be reprogrammed. This process is different for each vehicle. To learn how to do it you must consult the owner's manual. It's usually available in PDF format on the website of the automaker. You can also search YouTube for videos.

In most modern vehicles, a special procedure is required to put the vehicle into 'programming mode'. This usually involves pressing the power button several times on the driver's door or ignition while simultaneously pressing a button on a fob in a time-specific period. This is how the fob communicates its digital identification code to the car, which saves it in the memory. Once the fob has been programmed, it can function like normal keys.

It is important to remember that changing the programming of a key fob will erase any other key fobs that had been previously programmed. Therefore, if you'd like to keep other fobs, they must be carefully and swiftly reprogrammed following the initial one.


Sometimes, you can find replacement batteries for car key fobs at hardware stores, large retailers, or even online. However, you need to be aware of the make and model of your vehicle prior to purchasing a battery for your fob because the right type can be difficult to locate.

A CR editor once found a battery that was compatible with the key fob she used however it was for a different vehicle. This meant that although she could start the car and unlock the doors, she wasn't capable of lowering the windows.

Dealers can be a great resource in this regard, since they have the tools to reprogram the fob on a specific vehicle. Some European cars, such as the ones manufactured by Audi and BMW, will usually require an authorized dealer for this service since they utilize specialized security features that can only be reset by the manufacturer. Certain dealers, like those at Toyota and Lexus were willing to reprogram the key fob in a replacement if you knew the exact model and year of your car.

Replace the Button

If you've tried changing the battery, or reprogramming your key fob and still can't start your car it could be time to replace that button on the key. The button on the key of your car is subject to a lot use and jostling, and it can be damaged or stuck over time. Every time you press the button on your car key fob emits a different code that is recognized by the receiver inside the vehicle. When you try to operate your vehicle from a distance without the correct code could cause it to not be able to recognize you and shut the doors or turn off the engine.

You can buy replacement buttons online or in numerous local hardware stores. They are fairly easy to open up and install and only require a little clear plastic tape to cover the button.

Contact an Auto Locksmith

It's time to consult the experts when you're having issues with the key button on your car. Auto locksmiths specialise in the repair of electronic car keys as well as their associated locks. They are equipped with the tools and knowledge to identify and fix issues with your key fob. This includes replacing batteries and changing the programming. They have the knowledge and expertise to tackle more complex jobs, like fixing a damaged key or cutting the replacement key.

One of the most frequent reasons for a car's key button to stop working is because the switch inside has worn out. The use of the switch and exposure to elements are the primary causes. The switch is constructed of a hard plastic and has several switches on its surface. Each switch activates the function for which you are using the key. As the switch gets older over time, it becomes more difficult to activate these functions. As a result, you'll have to press down harder on the switch in order to enable it to function. This can further damage the switch and shorten its lifespan.

The easiest way to solve this problem is to replace the battery inside your car's key fob. A lot of models of cars use lithium-ion button or coin batteries which you can find at pharmacies, supermarkets, and home improvement stores. Once you've replaced the battery the key fob will work once more.

If the problem continues, it may be that the contacts on your key fob have worn out. The contacts are made of rubber, and covered with an electrically conducting film that wears out. They are exposed to elements when you use the key, so they're constantly being exposed to moisture and dirt. They'll eventually wear down to the point where they're unable to contact with the circuit board, or sensor beneath the keypad.

The dealership can replace the key fob, but it can be expensive and take a long time. You can also contact an expert locksmith in your area who can repair your key fob at an affordable price.

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