Car Key Button Repair
Car key buttons undergo lots of abuse particularly when they are used regularly. Over time, they can be damaged.
There are a few simple fixes that can get your keys working again. However, these solutions come with risks when it comes to changing batteries or altering your key fob. If you're not comfortable performing these yourself, it's recommended to consult an expert auto locksmith.
Change the Battery
It may be time to replace the battery in the case that your key fob doesn't function as it should. You can buy replacement batteries at any chain drugstore nationwide or in the parts department at your local car dealership. Some manufacturers include a spare battery with your vehicle when you purchase it.
The first thing you will need to find out what kind of battery is used in your key fob. The manufacturer should have this information on their website or on the key fob itself. Generally, the most common battery that is used in key fobs is a button cell, similar to those used in watches and remote controls. These batteries are available at Walgreens, Energizer and other stores for less than $5 for a pack of two.
You can take the old battery off your key fob once you know which type of battery it is using. It is possible to open most key fobs using your fingers or a flat tool like a screwdriver at the seam or notch at which they connect. Once the key fob has been opened, the battery will come out. Then, repair car key fob can replace it with the same design. A lot of key fobs are powered by CR2032 batteries. These batteries can be found at retailers who sell AAA or AA batteries.
Once the new battery is in place, you can take the two parts of the key fob together and test it to ensure that all buttons are functioning properly. You can test if everything is working properly by pressing the lock and unlock buttons on the key fob while pointing it toward your vehicle. If your car is not responding to the key fob, it might be required to reprogram the key fob and establish a wireless connection between the two. This is a relatively simple process that only requires your phone or another device.
Reprogram your key fob
If your key fob won't work and you believe it's time to replace it, it may not need the replacement of a battery, but instead the old one has to be reset. 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 site of the automaker) or look on YouTube for videos that explain how to do this.
In the majority of 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 the button on a fob in a specific time frame. The fob transmits its digital identification code to the vehicle, which will save it. The fob functions as an ordinary key once it has been programmed.
Reprogramming a fob will erase any previous keyfobs. Therefore, if you wish to keep other fobs, they should be reprogrammed with care and speed following the initial one.
Sometimes you can find replacement batteries for car key fobs at hardware stores, major retailers, or even online. You will need to know the model and make before you purchase a fob because it may be difficult to find the right battery.
A CR editor found a battery that fit the key fob she owned, but it was for a different model of car. This meant she could start her car and open the door, but she was unable to lower the windows.
Dealers can be of great assistance in this regard, since they have the equipment to reprogram the fob for the specific vehicle. Certain European automobiles, like those manufactured by Audi and BMW, will usually require you to go to 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, including those at Toyota and Lexus, were willing to attempt reprogramming a replacement fob as long as you knew the exact make and model of the car you own.
Replace the Button
If you've tried changing the battery or reprogramming the key fob, but you still can't start your car it might be time to replace the button on your key. The button on the car key is subject to a lot of pressure and jostling, and it can be damaged or stuck over time. Each time you press the button on your car key fob generates a unique code in a sequence that is recognised by the receiver inside the vehicle. If you try to operate your vehicle from some distance, it might not recognise you. It might close the doors or turn off the engine.
You can buy replacement buttons online or at many local hardware stores. It is easy to install them and they are extremely simple to open.
Contact an Auto Locksmith
It may be time to consult the experts if you are experiencing problems with your car's key switch. Auto locksmiths specialise in the repair of electronic car keys and their associated locks. These specialists have the knowledge and tools necessary to diagnose and repair a variety of issues with your key fob, including replacing batteries and reprogramming them. They have the knowledge and skills to handle more complex tasks, like repairing a broken key or cutting the replacement key.
One of the main reasons for a car key switch to stop working is that the switch inside has worn out. Overuse and exposure to elements are the primary causes. The switch is typically constructed of a tough plastic material and has a variety of switches that are located on the surface. Each switch is responsible for activating the specific function you are using the key to activate. As the switch wears out over time, it becomes more difficult to activate each of these functions. In the end, you will need to press down more force on the switch to make it work. This can further damage the switch and shorten the life span of the switch.
Replace the battery in your key fob. Many models of car use lithium-ion coin or button cell batteries which you can find in supermarkets, pharmacies, and home improvement stores. After you've replaced the battery, your key fob should work once more.
If the problem persists, it could be that the contacts inside the key fob have worn out. The contacts are made of rubber and coated with an electric conducting film that can wear out over time. They are exposed to the elements when you use the keypad and are constantly exposed to dirt and moisture. In time, they'll get worn down until they are no longer in contact with the circuit board or sensor underneath the keypad.
The dealership can replace your key fob, but it could be costly and take a long time. Another alternative is to contact a local car locksmith, who will be able to repair your key fob and save you money.