Car Key Button Repair
The buttons on keys for cars are exposed to a lot, especially if they are used frequently. This could lead to them becoming faulty over time.
Fortunately, there are several quick fixes to get your keys back to working. These methods are not without risk, however. Changing batteries or tampering the key fob could be dangerous. If you're not comfortable with these methods, it is best to consult a professional auto-locksmith.
Change the Battery
It's possible to replace the battery if your key fob no longer works as it should. You can usually find replacement batteries from any chain drug store or in the parts department of your car dealership. Some manufacturers offer an extra battery with the car when you purchase it.
The first thing you'll have to do is find out which battery your key fob is powered by. The manufacturer may have this information on their website, or you can check the actual key fob. The most commonly used type of battery found in keyfobs is the button cell similar to those found in remotes and watches. These kinds of batteries are typically found at stores such as Walgreens and Energizer and are available for under $5 for a pack of two.
Once you know what kind of battery your key fob is using you can open it up 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 join. Once the key fob has been opened the battery will come out. Then, you can replace it in the same orientation. Many key fobs are powered by CR2032 batteries. These batteries are available at retailers who sell AAA or AA batteries.
You can put the two halves back together after you have inserted the new battery and then test the key fob to confirm that all buttons work correctly. Pressing the locks and unlock buttons on the key fob while pointing it at your vehicle will help determine whether or not everything is functioning in the way it should. If your vehicle still doesn't respond to the key fob, you may have to reset the fob to establish wireless connectivity. It's a relatively easy process and requires the use of your smartphone or another device to do so.
Reprogram the Key Fob
If your key fob does not work and you believe it's time to replace it, it may not need an entirely new battery, but instead the original one must be reprogrammed. This procedure varies for each vehicle, so your best bet is to refer to the owner's manual (usually available in PDF form on the site of the automaker) or search YouTube for videos on how to accomplish this.
The majority of modern automobiles require a particular procedure to put the vehicle in "programming mode," which is usually done by pressing the power button on the driver's side door or ignition a few times while pressing a button on the fob within a specified time. The fob sends its digital identification code to the vehicle, which will save it. The fob can function as a regular key after it is programmed.
Reprogramming a fob will erase any previous keyfobs. If you want to keep the other fobs following the first, then they must be reprogrammed quickly and with care.
Sometimes, you can find replacement batteries for car key fobs at hardware stores, major retailers, or even online. It is important to know your car's model and make prior to deciding to purchase a fob as it may be difficult to locate the right battery.
A CR editor discovered an battery for her key fob however, it came from another vehicle. This meant that while she was able to start the car and unlock the doors, she was not in a position to lower the windows.
Dealers can be a great resource in this regard, since they have the tools to reprogram the fob for specific vehicles. Dealers are required to perform this service on some European cars such as Audi and BMW due to their unique 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 long as you knew the exact make and model of the vehicle you are driving.
Replace the Button
If you've tried changing the battery, reprogramming your key fob, but still haven't been able to start your car it's time to replace the button on your key. Your car key button receives lots of use and jostling over the years and can sometimes get stuck or even broken. Each time you press the button on your car key fob releases a distinct code in a sequence that is recognized by the car's receiver. If you attempt to operate your vehicle from a distance, it may not recognize you. It could lock the doors or shut off the engine.
You can purchase replacement buttons online or in numerous local hardware stores. repair car key is easy to install them and they are also very simple to open.
Contact an Auto Locksmith
If you're experiencing issues with the car key button it could be time to contact the experts. Auto locksmiths are experts in the repair of electronic keys and locks. They have the experience and tools needed to identify and repair a variety of issues that may arise with your key fob including replacing batteries and changing the programming. They also have the knowledge and experience to handle more complicated jobs, such as repairing broken buttons or cutting a replacement key.
The switch inside the button for the car key is usually worn out. This is due to overuse and exposure to the elements. The switch is usually made from a hard plastic and has many different switches on its surface. Each switch is responsible for activating the particular function that you use the key for. As the switch ages over time, it becomes more difficult to turn on each of these functions. This means that you will need to press harder on the switch to make it work. This could cause further damage to the switch, reducing its life span.
Replace the battery in your key fob. You can locate lithium-ion button or coin cell batteries at supermarkets, pharmacies and home improvement stores. Your key fob should now be working after replacing the battery.
If the problem persists it could be because the contacts on your key fob are worn out. The contacts are rubbery and covered by an electrical conducting film that wears out. They are exposed to elements while you use the keypad which means they are constantly exposed to dirt and moisture. They'll eventually wear down to the point where they're unable to contact the circuit board or sensor beneath the keypad.
You can try to have the key fob replaced by visiting a car dealership, however it can be costly and could take quite a while. You can also call an emergency locksmith who will repair your key fob for an affordable price.