Car Key Button Repair
The buttons on car keys are subjected to a lot and are especially vulnerable if frequently used. In time, they could become faulty.
There are a few easy solutions that will get your keys working again. These methods do not come completely safe however. Altering batteries or altering your key fob's security can be dangerous. If you're not comfortable performing these yourself, it is recommended that you contact an expert auto locksmith.
Change the Battery
If you notice that your key fob is not working as it should, it might be time to replace the battery. You can usually buy replacement batteries at any national chain drug store, or the parts department of your car dealership. Some manufacturers even include an extra key fob battery inside the packaging when you purchase your vehicle from them.
The first thing you will need to determine what battery your key fob uses. The manufacturer will likely have this information on their website or on the key fob itself. The most commonly used battery used in key fobs is a button cell, similar to those used in remote controls and watches. These types 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 are aware of the type of battery your key fob is using then you can open it and remove the old battery. Most key fobs are designed with a seam or notch where they join together which you can either open by using your fingers or using the flat side of a screwdriver. After the fob has been opened, the battery should come out, and you can then put in the new one in the same orientation as the old one. Most key fobs use CR2032 3V batteries, which are easily available at many stores that sell AAA and AA batteries.
You can join the two halves together after you have inserted the new battery and then test the key fob to make sure that all buttons function properly. You can determine if all functions are working correctly by pressing the lock and unlock buttons on the key fob, while pointing it toward your vehicle. If your vehicle still isn't responding to the keyfob, you may need to reprogram the fob and establish wireless connectivity. i was reading this is a easy process that requires your phone or another device.
Reprogram the Key Fob
If you're having trouble with your key fob, and you think it's time to replace it It may not be required to replace it. Instead, the old battery may require reprogramming. This procedure is different for every car and the best option is to consult the owner's manual (usually available in PDF form on the automaker's website) or search YouTube for videos explaining how to accomplish this.
In most modern vehicles, a specific procedure is required to put the vehicle into 'programming mode'. This usually involves pressing the power button several times on the door of the driver or ignition while simultaneously pressing the button on a fob within a specific time frame. This is how the fob sends its digital identity code to the vehicle, and it stores it in memory. The fob will work like normal keys once it is programmed.
It's important to note that reprogramming a key fob will wipe out any other key fobs which have been programmed previously. Therefore, if you'd like to keep other fobs, they should be carefully and quickly reprogrammed after the first one.
Sometimes, you can find replacement batteries for car key fobs in hardware stores, big retailers, or even online. However, you need to know the make and model of your car prior to buying a fob battery as the right type can be tricky to find.
A CR editor stumbled across an battery for her key fob however, it was from an entirely different vehicle. This meant she was able to start her car and unlock the door, but couldn't lower the windows.
Dealers can be extremely helpful in this case, as they have the equipment to reprogram the fob for the specific vehicle. Some European cars, such as the ones manufactured by Audi and BMW generally require a dealer to get this service because they use special 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 try reprogramming a replacement fob as long as you knew the exact model and make of the vehicle you are driving.
Replace the Button
If you have tried changing the battery and reprogramming the key fob, but you still can't start your car it may be time to replace the button on your key. The car key button gets a lot of use and jostling over the years and can sometimes get stuck or damaged. Each press of the button on your key fob releases a distinct code that is recognized by the receiver inside the vehicle. If you attempt to operate your vehicle from far away, it may not recognise you. It might close the doors or turn off the engine.
You can purchase replacement buttons online or at several local hardware stores. It is simple to install them and they are also very easy to open.
Contact an Auto Locksmith
It may be time to consult the experts If you're experiencing issues with your car's key switch. Auto locksmiths are experts in the repair of electronic keys and locks. These specialists have the knowledge and tools required to recognize and fix a variety of issues that may arise with your key fob including replacing batteries and changing their programming. They have the knowledge and skills to handle more complex tasks, like repairing a broken key or cutting an alternative key.
The switch inside the car key button is usually worn out. This is due to excessive use and exposure to elements. The switch is made of a hard plastic and has many switches on its surface. Each switch is able to activate the function that you select with the key. As the switch gets older it becomes harder to turn on these functions. You will need to exert more pressure on the switch to get it to work. This can cause further damage to the switch, further reducing its longevity.
The easiest way to solve this issue is to replace the battery on your car key fob. You can easily locate lithium-ion button or coin cell batteries in pharmacies, supermarkets and home improvement stores. Your key fob will be working after replacing the battery.
If the problem persists it could be because the contacts on your key fob's device have worn out. The contacts are made of rubber, and covered with an electrical conducting film that wears out. They are exposed to elements as you use the key and are constantly exposed to dirt and moisture. Over time, they get worn down until they're no longer in contact with the circuit board or the sensor beneath the keypad.
The dealer can replace the key fob, however it's costly and take a long time. You can also contact an emergency locksmith who will fix your key fob for an affordable price.