Car Key Button Repair
Car key buttons take many abuses, especially if used frequently. This can result in them becoming faulty over time.
There are a few easy fixes that can get your keys back to working. These methods are not without risk, however. Making changes to batteries or tampering with your key fob can be risky. If you're not comfortable performing these yourself, it's recommended to contact an expert auto locksmith.
Change the Battery
If you notice that your key fob is not working as it should, it might be time to replace the battery. You can find replacement batteries in any drugstore chain nationwide or in the parts department at your local dealership for cars. Some manufacturers offer an extra battery in the car when you purchase it.
The first thing you'll have to do is find out what kind of battery is used in your key fob. The manufacturer may have this information on their website or on the actual key fob. Generally, the most common battery that is used in the 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.
If you are aware of the type of battery your key fob uses then you can remove 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 repair car key near me has been opened, the battery will come out, and you can insert the new one in the same orientation as the old one. A lot of key fobs are powered by CR2032 batteries. These batteries are available at retailers that sell AAA or AA batteries.
You can snap the two halves back together after you have inserted the new battery and test the key fob to make sure that all buttons function correctly. You can test if everything is functioning properly by pressing the lock and unlock buttons on the key fob, while pointing it towards your vehicle. If your vehicle still does not respond to the fob, you might need to reprogram the fob and establish wireless connectivity. Fortunately, this is a relatively easy process and requires the use of your phone or other device to accomplish this.
Reprogram the Key Fob
If you're experiencing issues with your key fob, and you think that it's time to get a new one however, it may not be required to replace it. Instead the battery you have may need to be reprogrammed. This procedure is different for every car, so your best bet is to read the owner's manual (usually available in PDF form on the automaker's website) 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 multiple times while pressing a button on the fob within a specific time period. This is how the fob communicates its digital identification code to the vehicle, which stores it in memory. The fob can function as a regular key after it is programmed.
It is important to know that the process of reprogramming a key fob can erase any other key fobs which have been previously programmed. If you wish to keep the other fobs after the first, then they should be programmed quickly and carefully.
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 model and make of your car prior to purchasing a battery for your fob because the correct type of battery can be tricky to find.
A CR editor once found a battery that fit the key fob she used however it was for a different car. This meant that, while she was able to start the car and open the doors, she wasn't in a position to lower the windows.
Luckily, dealers can assist you in this instance in this case, since they have the necessary equipment to reprogram a fob to a specific car. Dealers are required to perform this procedure on some European vehicles like Audi and BMW because they have specialized security features which can only be reset by the manufacturer. Other dealers we spoke with such as those from Toyota and Lexus were willing to attempt reprogramming an original fob so long as you knew the exact model and make of the vehicle you are driving.
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 your key. The button on the key of your car is subject to a lot of use and jolting and may be damaged or stuck over time. Each time you press the button on your car key fob releases a distinct code that is recognised by the receiver inside the vehicle. If you attempt to operate your vehicle from a distance without the proper code could cause it not to recognise you and then lock the doors or turn off the engine.
You can purchase replacement buttons online or at many local hardware stores. They are easy to open up and install and only require a little clear plastic tape to cover the old button.
Contact an Auto Locksmith
It may be time to consult 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 experts have the tools and knowledge to determine and fix issues with your key fob. This includes replacing batteries and changing the programming. They have the knowledge and skills to handle more complex tasks, like fixing a broken key or cutting a replacement key.

One of the most common reasons for a car key button to stop working is because the switch inside it has worn out. Overuse and exposure to elements are the main causes. The switch is made from a hard plastic and has several switches on its surface. Each of these switches activates the function for which you use the key. As the switch wears out over time, it becomes more difficult to activate these functions. You will have to apply more pressure to the switch in order to activate it. This can cause further damage to the switch, further reducing its longevity.
Replace the battery in your key fob. You can easily find lithium-ion button or coin cell batteries in supermarkets, pharmacies and home improvement stores. Your key fob should function after you have replaced the battery.
If the issue persists it could be because the contacts in your key fob are worn out. The contacts are rubber-like and coated with an electric conducting film that can wear down over time. As you use the key they are constantly exposed to moisture and dust. They'll eventually wear out to the point where they're unable to contact with the circuit board or the sensor underneath the keypad.
You can try to get the key fob replaced by going to an auto dealer, but this can be expensive and could take an extended time. Another alternative is to contact a local locksmith for your car who can fix your key fob and help you save money.