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How To Become A Prosperous Car Key Button Repair Entrepreneur Even If You're Not Business-Savvy
Car Key Button Repair

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

Fortunately, there are several quick solutions to get your keys working again. These methods are not without risk, however. Changing batteries or tampering your key fob can be risky. If you're not comfortable performing these yourself, it's recommended to consult an expert auto locksmith.

Change the Battery

It may be time to replace the battery if your key fob doesn't function as it should. You can usually find replacement batteries from any chain drug store or the parts department of your car dealership. Some manufacturers include an extra battery in the car when you purchase it.

You will first need to find out what kind of battery is used in your key fob. about his is typically available on the site of the manufacturer or by checking the key fob. The most common kind of battery that is found in the keyfob is the button cell that is similar to the ones used in remotes and watches. These kinds of batteries are available at stores like Walgreens and Energizer and are available at 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 is using. 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. When the fob is opened, the battery will be able to pop out and you can then put in 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.

You can put the two halves back together after inserting the new battery and then test the key fob to make sure that all buttons work correctly. Pressing the lock and unlock buttons on the key fob while pointing it at your vehicle will allow you to determine whether or not everything is functioning as it should be. If your vehicle is not responding to the key fob, it may be required to reprogram the key fob to establish an internet connection between the two. Luckily, this is quite simple and only requires the use of your phone or other device to accomplish this.

Reprogram your key fob

If you're having trouble with your key fob and believe it needs a new one, it might not be necessary to replace it. Instead the old battery might need to be reprogrammed. This procedure differs for each vehicle. To learn the procedure you must consult the owner's manual. It's usually available in PDF format on the automaker website. You can also search YouTube for videos.

Most modern vehicles require a special procedure to put the vehicle into 'programming mode,' which usually involves pressing the power button on the driver's side door or ignition several times while pressing the fob's button within a specific time period. This is how the fob transmits its digital identification code to the vehicle, and it stores it in the memory. Once the fob has been programmed, it will behave as an ordinary key.

It is important to know that changing the programming of a key fob will erase any other key fobs which have been programmed previously. Therefore, if you want 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, major retailers, or even online. You must be aware of your car's make and model before you purchase a key fob since it may be difficult to find the right battery.

A CR editor once found a battery that fit the key fob she used however, it was for a different car. This meant that although she could start the car and unlock the doors, she was not in a position to lower the windows.

Luckily, dealers can assist in this case and most dealers have the tools needed to reprogram a fob into specific cars. Some European automobiles, like those made by Audi and BMW generally require you to go to a dealer for this service because they use specific security features that can only be reset by the manufacturer. Other dealers we spoke with like those at Toyota and Lexus were willing to attempt reprogramming the fob in a replacement as they knew the exact make and model of your car.

Replace the Button

If you've tried changing the battery and programming the key fob and still not being able to start your car, it could be time to replace the button on the key. The button on the key of your car is subject to a lot use and jostling and can become stuck or damaged over time. When you press the button on your key fob, a unique code is sent out in a sequence which the receiver inside the vehicle is able to recognize. If you try to operate your vehicle from a distance, it may not recognize you. It could close the doors or turn off the engine.

You can purchase replacement buttons online or at many local hardware stores. They are fairly easy to install and open and require just a bit of clear plastic tape to cover the button.

Contact an Auto Locksmith

If you're having trouble with your car key button it could be time to consult the experts. Auto locksmiths are experts in the repair of electronic keys and locks. They have the experience and tools necessary to diagnose and fix a variety of issues that may arise with your key fob including replacing batteries and changing their programming. They also have the knowledge and expertise to tackle more complicated tasks such as 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. Excessive use and exposure to elements are the main causes. Full Post is typically constructed from a hard plastic and it has several different switches on its surface. Each switch activates the function for which you are using the key. As the switch ages, it becomes more difficult to turn on these functions. You will have to exert more pressure on the switch in order to make it work. This can further damage the switch and reduce its lifespan.

Replace the battery in your key fob. Many models of car use lithium-ion button or coin batteries which you can buy at supermarkets, pharmacies and home improvement stores. Once you've replaced the battery, your key fob should 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 electrical conducting film that can wear out. When you use the keypad, they are continuously exposed to moisture and dust. They'll eventually wear out to the point where they are unable to contact with the circuit board or the sensor underneath the keypad.

The dealer can replace the key fob, however it's costly and take a long time. Another option is to contact a local locksmith for your car, who will be able to fix your key fob and help you save money.

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