Car Key Button Repair
Car key buttons undergo lots of abuse particularly when they are used regularly. Over time, they can become faulty.
There are a few simple fixes that will allow your keys back to working. These methods do not come without risk, however. Making changes to batteries or tampering with your key fob can be dangerous. If you're not comfortable performing these yourself, it's recommended to consult a professional auto locksmith.
Change the Battery
It could be time to replace the battery in your key fob if it doesn't function as it should. You can usually find replacement batteries at any national chain drug store or in 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.
The first thing you'll need to find out which battery your key fob is powered by. The manufacturer may have this information on their website, or you can check the key fob's specifications. The most commonly used type of battery found in a keyfob is the button cell that is similar to the ones used in remotes and watches. These types of batteries are available at stores like Walgreens and Energizer, and are available for less than $5 for a set of two.
You can take the old battery off your key fob after you know the type of battery it is using. It is possible to open most key fobs by using your fingers or a flat tool, like a screwdriver at the notch or seam where they join. Once the key fob has been opened, the battery will come out. Then, you can replace it with the same orientation. The majority of key fobs are powered by CR2032 3V batteries, which are easily available at many retailers that sell AAA and AA batteries.

Once the new battery is in place After that, you can connect the two pieces of the key fob back together and test it to make sure that all buttons work correctly. Pressing remote key fob repair and unlock buttons on the key fob while pointing it at your vehicle will allow you to determine whether or not everything is working as it should be. If your car is not responding to the key fob, it might be required to reprogram the key fob to establish a wireless connection between the two. This is a fairly easy process that requires your phone or another device.
Reprogram the Key Fob
If your key fob does not work and you think it needs to be replaced the fact is that it might not require a new battery, but rather the old one has to be changed. This process is different for each car. 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.
Modern vehicles require a special procedure to put the vehicle in 'programming mode,' which typically involves engaging the power button on the driver's side door or ignition several times while pressing a button on the fob within a specified time. This is how the fob transmits its digital identity code to the car, which saves it in its memory. The fob functions as normal keys once it has been programmed.
Reprogramming a keyfob erases any previous keyfobs. Therefore, if you'd like to keep other fobs, they should be reprogrammed with care and speed following the initial one.
There are a few replacement batteries for your car key fob at hardware stores, big-box retailers, or online. However, you must be aware of the model and make of your vehicle prior to buying a fob battery as the right kind isn't always easy to locate.
A CR editor stumbled across the battery for her key fob but it was from another vehicle. This meant she could start her car and open the door, but she was unable to lower the windows.
Fortunately, dealers can assist you in this instance and most dealers have the tools needed to reprogram a fob into a specific car. Dealers are required to carry out this service on some European cars such as Audi and BMW because they have specialized security features which can only be reset at the factory. Some dealers, like those at Toyota and Lexus were willing to reprogramme an alternative key fob if you knew the exact model and year of the car you own.
Replace the Button
If you've tried changing the battery, reprogramming your key fob, but you're still unable to start your car, it could be time to replace the button on the key. The button on the car key is subject to a lot use and jostling and can become stuck or damaged over time. Every time you press the button on your key fob, a unique code is sent out in a pattern that the vehicle's receiver is able to recognize. If you attempt to operate your vehicle from far away, it may not recognise you. It could shut the doors or turn off the engine.
You can purchase replacement buttons online or in several local hardware stores. They are fairly easy to install and open and require only a small amount of clear plastic tape to cover the button.
Contact an Auto Locksmith
It may be time to seek out the experts when you're having issues with your car's key switch. Auto locksmiths specialize in the repair of electronic car keys and their associated locks. These specialists have the knowledge and tools necessary to diagnose and fix a variety of issues that may arise with your key fob including replacing batteries and reprogramming them. They also have the knowledge and expertise to tackle more complicated tasks like fixing a broken button or even cutting a replacement key.
The switch in the car key button is typically worn out. This is due to overuse and exposure to the elements. The switch is constructed of hard plastic and has multiple switches on its surface. Each of these switches is responsible for activating the particular function that you use the key for. As the switch wears out over time, it becomes harder to activate each of these functions. As a result, you will need to press harder on the switch to make it work. This can further damage the switch and shorten its lifespan.
The most effective solution to this issue is to replace the battery in your car's key fob. You can easily locate lithium-ion button or coin cell batteries 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 your key fob's contacts have worn out. The contacts are rubber-like and coated with an electrically conducting film, which could wear out over time. They are exposed to elements as you use the keypad and are constantly exposed to moisture and dirt. They'll eventually wear out to the point where they can no longer make contact with the circuit board, or the sensor under the keypad.
You can try to get the key fob replaced by visiting a vehicle dealership, but this could be expensive and may take quite a while. The other option is to contact a local locksmith for your car, who will be able to repair your key fob and help you save money.