Car key buttons endure lots of abuse, especially if used frequently. This can lead to them becoming faulty over time.
There are a few easy solutions that will get your keys back to working. These methods are not without risk however. Making changes to batteries or tampering with your key fob's security can be dangerous. If you're not confident with these methods, it is recommended to seek advice from an expert auto-locksmith.
Change the Battery
It could be time to replace the battery in the case that your key fob no longer works as it should. You can buy replacement batteries in any national chain drugstore or at the parts department of your local dealership for cars. Some manufacturers will include an extra battery with the car when you purchase it.
You will first need to determine the kind of battery is being used in your key fob. The manufacturer should have this information on their website or you can look it up on the key fob itself. The most popular kind of battery that is found in a keyfob is the button cell, which is like the ones found in remotes and watches. These batteries are available at Walgreens, Energizer and other stores for less than $5 per box of two.
Once you know what kind of battery your key fob uses you can open it up and remove the old battery. It is possible to open most key fobs by using your fingers or a flat tool like a screwdriver at the notch or seam where they connect. Once the fob is opened, the battery will come out, and you can then put in the new one with the same orientation as the old one. Many key fobs are powered by CR2032 batteries. These batteries can be found at retailers that sell AAA or AA batteries.
Once the new battery is installed after which you can take the two pieces of the key fob together and test it to ensure that all buttons work properly. 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 is not responding to the key fob, it could be required to reprogram the key fob to establish a wireless connection between the two. Fortunately, this is quite simple and requires only the use of your phone or other device to accomplish this.
Reprogram the Key Fob
If your key fob does not work and you think it needs to be replaced the fact is that it might not require the replacement of a battery, but instead the old one has to be changed. This procedure is different for every car so the best way to find out is to read the owner's manual (usually available in PDF form on the website of the automaker) or search YouTube for videos that explain how to do this.
In most modern vehicles, a specific procedure is required to put the vehicle in 'programming mode'. This typically involves pressing the power button several times on the driver's door or ignition while simultaneously pressing a button on a fob in the time frame specified. This is how the fob sends its digital identity code to the vehicle, and it stores it in memory. The fob will work like an ordinary key once it has been programmed.
It is important to remember that the process of reprogramming a key fob can wipe out any other key fobs which have been previously programmed. Therefore, if you wish to keep other fobs, they must be carefully and swiftly reprogrammed following the initial one.
There are a few replacement batteries for a car key fob at hardware stores, big-box retailers or on the internet. You will need to know your car's make and model before you purchase a fob as it isn't easy to find the right battery.
A CR editor found a battery that was compatible with the key fob she had, but it was for a different car. This meant that, while she was able to start the car and unlock the doors, she was not able to lower the windows.
Dealers can be extremely helpful in this situation, since they have the tools to reprogram the fob on a specific vehicle. Some European vehicles, such as those manufactured by Audi and BMW generally require you to go to a dealer to get this service due to the fact that they have special security features that can only be reset by the manufacturer. Certain dealers, like those at Toyota and Lexus were willing to reprogramme a replacement key fob provided you knew the exact model and make of the car you own.
Replace the Button
If you've tried changing the battery, reprogramming your key fob and still can't start your car it could be time to replace the button on the key. The car key button gets lots of use and jolting over time and can sometimes get stuck or even broken. Each time you press the button on your key fob, an individual code is transmitted in a sequence that the receiver in the vehicle is able to recognize. If you attempt to operate your vehicle from a distance, it may not recognise you. It may shut the doors or turn off the engine.
You can purchase replacement buttons online or at several local hardware stores. They are fairly easy to install and open and require just a bit of clear plastic tape to cover the old button.
Contact an Auto Locksmith
It may be time to consult the experts If you're experiencing issues with your car's key button. car key fob repair near me specialize in the repair of electronic car keys as well as their associated locks. They are equipped with the tools and expertise to determine and fix issues with your key fob. This includes replacing batteries and reprogramming them. They have the knowledge and expertise to tackle more complicated tasks, such as fixing a broken key or cutting an alternative key.
The switch inside the car key button is typically worn out. This is caused by overuse and exposure to elements. The switch is made from a hard plastic and has multiple switches on its surface. Each switch is able to activate the function that you select with the key. As the switch gets older over time, it becomes harder to turn on each of these functions. You will have to exert more pressure on the switch to get it to work. This could further damage the switch and decrease its lifespan.
Replace the battery in your key fob. You can locate lithium-ion button or coin cell batteries in supermarkets, pharmacies and home improvement stores. After you've replaced the battery, your key fob should be working again.
If the problem persists it could be that the contacts inside the key fob have worn out. The contacts are rubber-like and coated with an electrically conducting film, which can wear out over time. As you use the key they are continuously exposed to moisture and dust. They'll eventually wear out to the point that they are unable to contact with the circuit board, or the sensor underneath the keypad.
The dealership can replace the key fob, but it can be expensive and takes a lot of time. You can also contact an expert locksmith in your area who will fix your key fob for a lower price.
