Car Key Button Repair
Car key buttons endure many abuses particularly when they are used regularly. This can lead to them becoming faulty over time.
There are a few simple fixes that will allow your keys working again. However, these techniques carry risks associated with changing batteries or tampering with the key fob. If you're not confident doing these yourself, it is recommended that you contact a professional auto locksmith.
Change the Battery
It's possible to change the battery in your key fob if it isn't working as it should. You can usually find replacement batteries at any national chain drug store, or the parts department at your car dealership. Some manufacturers offer an extra battery with your car when you buy it.
The first thing you will need to do is determine what battery is used in your key fob. This information is usually available on the site of the manufacturer or by looking at the key fob. The most commonly used battery that is used in a key fob 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 has you can remove it and take out the old battery. The majority of key fobs are made with a notch or a seam where they join together and can be opened by using your fingers, or by using an instrument that is flat, such as a screwdriver. After the key fob is been opened the battery will be released. You can then replace it with the same design. The majority of key fobs are powered by CR2032 3V batteries, which are available at many stores that sell AAA and AA batteries.
You can put the two halves back together after inserting the new battery and then test the key fob to confirm that all buttons are functioning correctly. Pressing the lock and unlock buttons on the key fob while it is pointed at your vehicle will help determine whether or not everything is working exactly as it should. If your car is not responding to the key fob, it may be necessary to reprogram your key fob to establish an internet connection between the two. This is a fairly simple process that only requires your phone or another device.
Reprogram the Key Fob
If your key fob does not work and you think it's time to replace it, it may not need an entirely new battery, but rather the old one has to be reset. This procedure differs for each car. To find out how to do it, consult your owner's manual. It's usually available in PDF format on the website of the automaker. You can also search YouTube for videos.
In modern vehicles, a special procedure is required to put the vehicle into 'programming mode'. This usually involves pressing the power button multiple times on the door of the driver or ignition, while simultaneously pressing the button on a fob within a time-specific period. This is how the fob transmits its digital identity code to the car, which saves it in memory. The fob functions as a regular key after it has been programmed.
Reprogramming a keyfob will erase any previous keyfobs. Therefore, if you wish to keep other fobs, they need to be reprogrammed with care and speed after the first one.
Sometimes you can find replacement batteries for key fobs for cars in hardware stores, big retailers, or even online. However, you need to be aware of the model and make of your car prior to buying a fob battery as the right type can be difficult to locate.
A CR editor found a battery for her key fob however, it was from a different vehicle. This meant she was able to start her car and open the door, but couldn't lower the windows.
Dealers can be of great assistance in this case, as they have the tools to reprogram the fob on the specific vehicle. Some European vehicles, such as those made by Audi and BMW, will usually require a dealer for this service due to the fact that they have specific security features that can only be reset by the manufacturer. Other dealers we spoke with like those at Toyota and Lexus, were willing to try reprogramming the fob in a replacement as provided you know the exact model and make of your car.
Replace the Button
If you've tried changing the battery or reprogramming the key fob but can't start your car it could be time to replace the button on the key. The button on the car key is subject to a lot use and jolting and may become stuck or damaged over time. Every time you press the button on your car key fob releases a distinct code that is recognized by the receiver inside the vehicle. If you attempt to operate your car from a distance without using the proper code could cause it to not be able to recognize you and then lock the doors or turn off the engine.
You can buy replacement buttons online or in several local hardware stores. It is easy to install them and they are very simple to open.
Contact an Auto Locksmith
If you're having trouble with your car key it could be time to call in the experts. Auto locksmiths specialise in the repair of electronic car keys as well as their associated locks. They have the expertise and tools needed to identify and repair a variety of issues with your key fob, including replacing batteries and changing the programming. They also have the knowledge and expertise to tackle more complex tasks such as fixing broken buttons or cutting a replacement key.
One of the most frequent reasons for a car's key button to stop working is that the switch inside it has worn out. hop over to here and exposure to elements are the main reasons. The switch is typically made from a hard plastic and has many different switches on the surface. Each switch is responsible for activating the specific function that you use the key for. As the switch ages over time, it becomes harder to activate these functions. In the end, you'll have to press harder on the switch to get it to work. This could cause more damage to the switch, further diminishing its life span.
Replace the battery in your key fob. You can find lithium-ion button or coin cell batteries at pharmacies, supermarkets and home improvement stores. After you've replaced the battery your key fob should work once more.
If the issue persists it could be that the contacts on your key fob have become worn out. The contacts are rubbery and covered with an electrical conducting film that wears out. They are exposed to the elements while you use the key and are constantly exposed to dirt and moisture. Over time, they wear down to the point where they no longer make contact with the circuit board or sensor underneath the keypad.
You can try to have the key fob replaced at an auto dealer, but this can be expensive and could take an extended time. The other option is to contact a local car locksmith, who will be able to fix your key fob and save you money.