Car Key Button Repair
Car key buttons take a lot of abuse particularly if they are used frequently. This can lead to them becoming damaged over time.
There are a variety of quick solutions to get your keys working again. These solutions are not completely safe however. Altering batteries or altering 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
If you're noticing that your key fob is no longer working as it should, it might be time to replace the battery. You can usually find replacement batteries at any national chain drug store or in the parts department at your car dealership. Some manufacturers even include a spare key fob battery inside the packaging when you purchase your vehicle from them.
First, you'll need to find out what kind of battery is used in your key fob. This information is usually available on the website of the manufacturer or by examining the key fob. The most commonly used type of battery found in a keyfob is the button cell like the ones found in remotes and watches. These batteries are available at Walgreens, Energizer and other stores for less than $5 per pack of two.
You can remove the old battery from your key fob when you know what kind of battery it is using. It is possible to open most key fobs using your fingers or a flat tool such as a screwdriver, at the seam or notch at which they join. After the key fob has been opened, the battery will be released. It is then possible to replace it in the same orientation. The majority of key fobs are powered by CR2032 3V batteries, which are readily available at many retailers that sell AAA and AA batteries.
You can join the two halves together after you have inserted the new battery and test the key fob to make sure that all buttons work properly. You can verify that everything is working properly by pressing the lock and unlock button on the key fob, while pointing it toward your vehicle. If your vehicle doesn't respond to the keyfob, you may need to reprogram the fob and establish wireless connectivity. This is a relatively straightforward process that requires a phone or other device.
Reprogram your key fob

If you're having issues with your key fob and think that it's time to get a new one It may not be required to replace it. Instead the battery you have may require reprogramming. This process varies by car and the best option is to consult the owner's manual (usually available in PDF form on the website of the automaker) or search YouTube for videos that explain how to do this.
Most modern automobiles require a particular procedure to put the vehicle into 'programming mode,' which typically involves engaging the power button on the driver's side door or ignition several times while pressing the fob's button within a certain time frame. The fob sends its digital identification code to the vehicle, which saves it. After the fob is programmed, it can function like an ordinary key.
Reprogramming a fob will erase any previous keyfobs. Therefore, if you'd like to keep other fobs, they must be reprogrammed with care and speed after the first one.
Sometimes, you can find replacement batteries for key fobs for cars at hardware stores, large retailers, or even online. It is important to be aware of your car's model and make prior to deciding to purchase a fob as it may be difficult to find the right battery.
A CR editor stumbled across the battery for her key fob, however, it came from another vehicle. This meant that she could start her car and unlock the door, but she couldn't lower the windows.
Fortunately, key car repair can assist you in this instance, as most of them have the necessary equipment to reprogram a fob to the specific vehicle. Some European automobiles, like those made by Audi and BMW, will usually require you to go to a dealer for this service since they utilize specific security features that can only be reset by the manufacturer. Other dealers we spoke to such as those from Toyota and Lexus were willing to reprogramme a replacement fob as provided you know the exact model and make of your car.
Replace the Button
If you have tried changing the battery and programming the key fob, but you still can't start your car it might be time to replace the button on the key. Your car key button receives a lot of use and jolting over time and can sometimes get stuck or damaged. Each time you press the button on your key fob emits a different code in a sequence that is recognised by the receiver inside the vehicle. If you attempt to operate your vehicle from a distance, it may not recognize you. It could shut the doors or turn off the engine.
You can buy replacement buttons online or at numerous local hardware stores. It is simple to install buttons and they are extremely simple to open.
Contact an Auto Locksmith
If you're experiencing issues with the car key button it could be time to consult the experts. Auto locksmiths specialize in the repair of electronic car keys as well as their associated locks. They have the tools and expertise to diagnose and fix various issues with your key fob. This includes replacing batteries and changing the programming. They also have the skills and experience to handle more complicated jobs, such as repairing 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. The switch is typically constructed from a hard plastic and has a variety of switches on its surface. Each switch is able to activate the function for which you are using the key. As the switch gets older over time, it becomes more difficult to turn on each of these functions. In the end, you'll have to press down harder on the switch in order to make it work. This could cause further damage to the switch, diminishing its life span.
Replace the battery in your key fob. A lot of models of cars use lithium-ion coin or button cell batteries which you can buy at supermarkets, pharmacies, and home improvement stores. After you've replaced the battery your key fob should be working again.
If the issue persists, it may be that the contacts on your key fob have worn out. The contacts are made of rubber and are covered with an electrically conducting film that can wear out. They are exposed to elements while you use the key which means they are constantly exposed to moisture and dirt. They'll eventually wear out to the point where they are unable to contact with the circuit board, or the sensor under the keypad.
You can attempt to get the key fob replaced by visiting an auto dealer, but this can be expensive and may take an extended time. Another option is to contact a local locksmith for your car who can fix your key fob and save you money.