Car key buttons endure a lot of abuse particularly when they are used regularly. Over time, they can become faulty.
There are a few easy fixes that will allow your keys back in working order. These methods are not completely safe, however. Changing batteries or tampering your key fob can be dangerous. If you are not comfortable with these methods, it's recommended to seek advice from a professional auto-locksmith.
Change the Battery
It may be time to replace the battery if your key fob isn't working as it should. You can typically purchase replacement batteries from any chain drug store or the parts department of your automobile dealership. Some manufacturers even include an extra key fob battery in their packaging when you purchase a car from them.
The first thing you'll need to do is determine what battery your key fob is powered by. The manufacturer may have this information on their website or on the actual key fob. The most commonly used battery used in the key fob is a button cell, similar to those used in remote controls and watches. These types of batteries are commonly sold at places like Walgreens and Energizer and are available for purchase for under $5 for a pack of two.
You can remove the old battery from your key fob after you know the type of battery it is using. It is possible to 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 pop out. It is then possible to replace it with the same orientation. Most key fobs use CR2032 3V batteries, which are available at many stores that sell AAA and AA batteries.
Once the new battery is inserted, you can snap the two pieces of the key fob back together and test it to make sure that all buttons function correctly. Pressing the locks and unlock buttons on the key fob while pointing it at your vehicle will allow you to determine whether or not everything is functioning as it should be. If your vehicle doesn't respond to the fob, you might have to reset the fob and establish a wireless connection. This is a relatively easy process that requires your phone or another device.
remote key fob repair
If your key fob won't work and you think it needs to be replaced the fact is that it might not require an entirely new battery, but rather the original one must be reprogrammed. This process varies by car, so your best bet is to read the owner's manual (usually available in PDF form on the website of the automaker) or search YouTube for videos explaining how to accomplish this.
The majority of modern vehicles require a specific procedure to put the vehicle in 'programming mode,' which usually involves pressing the power button on the driver's side door or ignition multiple times while pressing a button on the fob within a specified time. The fob transmits its digital identification code to the vehicle, which then stores it. After the fob is programmed, it can perform the same way as an ordinary key.
Reprogramming a keyfob erases any previous keyfobs. 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, major retailers, or even on the internet. You will need to be aware of your car's make and model before you purchase a key fob since it isn't easy to find the right battery.
A CR editor found a battery that fit the key fob she had however, it was for a different car. This meant that she could start her car and unlock the door, but she couldn't lower the windows.
Fortunately, dealers can assist in this case, as most of them have the necessary equipment to reprogram a fob for a specific car. Dealers are required to carry out this service on some European automobiles like Audi and BMW because they come with specialized security features which can only be reset in the factory. Some dealers, like those at Toyota and Lexus were willing to reprogramme a replacement key fob provided you knew the exact model and year of your car.
Replace the Button
If you have tried changing the battery and reprogramming the key fob but can't start your car it might be time to replace the button on the key. The button on the car key is subject to a lot of pressure and jostling and can become stuck or damaged over time. Every time you press the button on your key fob the unique code is sent in a sequence which the vehicle's receiver can recognize. If you attempt to operate your vehicle from a distance, it may not recognise you. It may lock the doors or shut off the engine.
You can purchase replacement buttons online or in several local hardware stores. They are relatively simple to open and install and only require a little clear plastic tape to cover the button.
Contact an Auto Locksmith
If you're experiencing issues with your car key button It could be time to call in the experts. Auto locksmiths are experts in the repair of electronic keys and locks. They have the expertise and tools needed to identify and fix a variety of issues with your key fob including replacing batteries and reprogramming them. They are equipped with the knowledge and skills to handle more complex jobs, like fixing a broken key or cutting the replacement key.
One of the main reasons for a car key button to stop working is that the switch inside has worn out. Excessive use and exposure to elements are the main causes. The switch is made of an extremely hard plastic with many switches on its surface. Each switch is responsible for activating a specific function that you use the key to activate. As the switch age it becomes more difficult to activate these functions. You will need to exert more pressure on the switch to get it to work. This could further damage the switch and shorten its lifespan.
The most straightforward solution to this issue is to replace the battery inside your car's key fob. You can locate lithium-ion button or coin cell batteries at supermarkets, pharmacies and home improvement stores. After replacing the battery, your key fob should work again.
If the issue persists, it could be because the contacts on your key fob have worn out. The contacts are made of rubber and coated with an electrically conducting film, which could wear away over time. They are exposed to elements when you use the keypad, so they're constantly being exposed to dirt and moisture. They'll eventually wear down to the point where they are unable to contact the circuit board or the sensor under the keypad.
You can attempt to get the key fob replaced by visiting an auto dealer, but this can be expensive and could take a long time. You can also call a local locksmith who will fix your key fob at an affordable price.
