Car Key Button Repair
The buttons on the car keys are subject to a lot of pressure and are especially vulnerable if often used. This can result in them becoming damaged over time.
There are a few easy solutions that will get your keys working again. However, these solutions come with risks when it comes to changing batteries or altering the key fob. If you're not comfortable with these methods, it is best to consult a professional auto-locksmith.
Change the Battery
If you're noticing that your key fob is not functioning as it should, it could be time to replace the battery. You can buy replacement batteries in any chain drugstore nationwide or at the parts department at your local car dealership. Some manufacturers offer an extra battery in your car when you buy it.
It is first necessary to find out what kind of battery is used in your key fob. The manufacturer may have this information on their website, or you can check the key fob's specifications. Generally speaking, the most popular battery used in key fobs is a button cell similar to the ones used in remote controls and watches. These batteries are available at Walgreens, Energizer and other stores for less than $5 for a pack of two.
If you are aware of the type of battery your key fob is using then you can remove it and take out the old battery. You can open most key fobs using your fingers or a flat tool such as a screwdriver, at the notch or seam where they connect. Once the fob is opened, the battery should come out, and you can then insert the new one with the same orientation that the old one. Many key fobs are powered by CR2032 batteries. These batteries are sold at retailers who sell AAA or AA batteries.
After the new battery has been inserted after which you can snap the two parts of the key fob back together and test it to ensure that all buttons function correctly. You can test if everything is working properly by pressing the lock and unlock button on the key fob, while pointing it towards your vehicle. 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. It's an easy procedure and requires only the use of your smartphone or another device to accomplish this.
Reprogram your key fob
If you're experiencing issues with your key fob and believe that it's time to get a new one however, it may not be required to replace it. Instead the battery you have may require reprogramming. This procedure varies for each vehicle and the best option is to consult the owner's manual (usually available in PDF form on the site of the automaker) or search YouTube for videos on how to do this.
Modern vehicles require a specific procedure to put the vehicle in 'programming mode,' which typically involves engaging the power button on the driver's side door or ignition multiple times while pressing the fob's button within a specific time period. This is how the fob sends its digital identification code to the vehicle, and it stores it in its memory. The fob functions as an ordinary key once it is programmed.
It is important to remember that reprogramming a key fob will wipe out any other key fobs that had been programmed previously. Therefore, if you want to keep other fobs, they need to be carefully and quickly reprogrammed following the initial one.
Sometimes you can find replacement batteries for car key fobs at hardware stores, large retailers, or even on the internet. You must know your car's model and make prior to deciding to purchase a fob because it can be difficult to locate the correct battery.
A CR editor stumbled across a battery for her key fob, however, it was from an entirely different vehicle. This meant she was able to start her car and unlock the door, but couldn't lower the windows.
Dealers can be of great assistance in this case, as they have the equipment necessary to reprogram the fob for specific vehicles. Some European vehicles, such as the ones manufactured by Audi and BMW generally require an authorized dealer for this service since they utilize specific security features that can only be reset by the manufacturer. Other dealers we spoke with such as those from Toyota and Lexus were willing to reprogramme a replacement fob as they knew the exact make and model of the car you own.
Replace the Button
If you've tried changing the battery, or reprogramming your key fob, but still can't start your car it might be time to replace that button on your key. The key on your car receives many uses and jostling over the years and can sometimes get stuck or damaged. Each time you press the button on your car key fob generates a unique code that is recognised by the receiver inside the vehicle. If you attempt to operate your vehicle from far away, it may not recognize you. It might shut the doors or turn off the engine.
You can purchase replacement buttons online or at many local hardware stores. It is easy to install them and they are very simple to open.
Contact an Auto Locksmith
If you're experiencing a problem with the car key button it could be time to call in the experts. Auto locksmiths specialize in the repair of electronic car keys as well as their associated locks. These specialists have the tools and know-how to diagnose and fix various issues with your key fob. This includes replacing batteries and changing the programming. They are equipped with the knowledge and skills to handle more complicated tasks, such as fixing a broken key or cutting a replacement key.
One of the main reasons for a car's key button to stop working is that the switch inside it has worn out. This is caused by overuse and exposure to elements. The switch is usually made from a hard plastic material and has a variety of switches on its surface. Each switch activates the function for which you use the key. As Source over time, it becomes more difficult to activate these functions. As a result, you will need to press harder on the switch to get it to work. This can further damage the switch and shorten its lifespan.
The most straightforward solution to this problem is to replace the battery on your car key fob. You can find lithium-ion button and coin cell batteries at 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 rubbery and covered with an electrically conducting film that can wear out. When you use the keypad, they are constantly exposed to dust and moisture. Over time, they get worn down to the point that they are no longer in contact with the circuit board or sensor underneath the keypad.
You can try to get the key fob replaced by visiting a vehicle dealership, but this can be expensive and can take quite a while. The other alternative is to contact a local car locksmith who will be able to fix your key fob and help you save money.