Car Key Button Repair
The buttons on the car keys are subject to a lot of pressure, especially if they are frequently used. Over time, they can be damaged.
There are a few quick fixes that will allow your keys working again. These methods do not come without risk, however. Making changes to batteries or tampering with your key fob's security can be risky. If you are not comfortable with these methods, it's recommended to seek advice from an expert auto-locksmith.
Change the Battery
If you notice that your key fob not functioning as it should, it may be time to replace the battery. You can usually buy replacement batteries from any chain drug store or in the parts department of your car dealership. Some manufacturers will even include an extra key fob battery in the packaging when you purchase your car from them.
The first thing you'll need to do is find out which battery your key fob is powered by. The manufacturer should have this information on their website or you can look it up on the key fob's specifications. Generally speaking, the most popular battery that is used in a key fob is a button cell type similar to the ones used in remote controls and watches. These batteries are available at Walgreens, Energizer and other stores for less than $5 per box of two.
You can take the old battery off your key fob after you know the type of battery it uses. It is possible to open most key fobs by using your fingers or a flat tool such as a screwdriver, at the notch or seam where they connect. When the fob is opened, the battery will come out, and you can insert the new one in the same orientation as the previous one. The majority of key fobs utilize CR2032 3V batteries, which are readily accessible at a variety of stores that sell AAA and AA batteries.
After the new battery has been installed After that, you can snap the two halves of the key fob together and test it to make sure that all buttons work correctly. You can verify that everything is working properly by pressing the lock and unlock buttons on the key fob while pointing it at your vehicle. If your vehicle is not responding to the key fob, it could be necessary to reprogram the key fob to establish an internet connection between the two. Fortunately, this is quite simple and only requires the use of a phone or other device to perform the procedure.
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 necessary to replace it. Instead, the old battery may require reprogramming. This procedure is different for every car and the best option is to consult the owner's manual (usually accessible in PDF format on the website of the automaker) or look on YouTube for videos that explain how to go about this.
In modern vehicles, a specific procedure is required to put the vehicle into 'programming mode'. This usually involves pressing the power button multiple 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 vehicle, and it stores it in memory. The fob will work like a regular key after it has been programmed.
It's important to note that reprogramming a key fob will wipe out any other key fobs that have been programmed previously. Therefore, if you want to keep other fobs, they should be carefully and swiftly reprogrammed after the first one.
Sometimes, you can find replacement batteries for key fobs for cars at hardware stores, major retailers, or even online. However, you need to know the make and model of your car before purchasing a fob battery because the correct type of battery can be difficult to locate.
A CR editor found an appropriate battery for the key fob she used however, it was for a different vehicle. This meant that, while she could start the car and open the doors, she wasn't in a position to lower the windows.
Fortunately, dealers can help in this situation and most dealers have the necessary equipment to reprogram a fob into a specific car. Some European cars, such as those manufactured by Audi and BMW generally require you to go to a dealer for this service since they utilize specialized security features that can only be reset by the manufacturer. Other dealers we spoke to such as those at Toyota and Lexus were willing to reprogramme a replacement fob as long as you knew the exact model and make of the car you own.
Replace the Button
If you have tried changing the battery and programming the key fob but can't start your car it may be time to replace the button on the key. The button on your car key is subjected to a lot of use and jostling and can become stuck or damaged over time. Each time you press the button on your key fob releases a distinct 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 might close the doors or turn off the engine.
You can buy replacement buttons online or in several local hardware stores. They are relatively simple to open up and install and only require a little clear plastic tape to cover the old button.
Contact an Auto Locksmith
It could be time to consult the experts when you're having issues with the key button on your car. Auto locksmiths are experts in the repair of electronic keys and locks. They have the experience and tools required to recognize and fix a range of issues with your key fob including replacing batteries and changing their programming. They have the knowledge and skills to handle more complex tasks, like fixing a broken key or cutting the replacement key.
The switch on the car key button is typically worn out. Overuse and exposure to elements are the main causes. The switch is typically made from a hard plastic and it has several different switches that are located on the surface. Each switch activates the function that you select with the key. As the switch ages it becomes harder to turn on these functions. This means that you'll have to press down harder on the switch in order to make it work. This can cause further damage to the switch, reducing its lifespan.
The most straightforward solution to this issue is to replace the battery inside your car's key fob. The majority of cars have lithium-ion coin or button cell batteries, which you can easily find in supermarkets, pharmacies, and home improvement stores. After you've replaced the battery the key fob will work once more.
If key fob repair service persists, it could be that the contacts in your key fob have become worn out. The contacts are rubber-like and coated with an electric conducting film that can wear down over time. When you use the keypad, they are exposed to dust and moisture. They'll eventually wear out to the point that they're unable to contact with the circuit board, or the sensor underneath the keypad.
The dealership can replace the key fob, however it can be expensive and takes a lot of time. The other option is to contact an auto locksmith in your area who will be able to repair your key fob and help you save money.
