Car Key Button Repair
The buttons on the car keys are exposed to a lot particularly if they are often used. This can lead to them becoming damaged over time.
There are a few simple fixes that will allow your keys back in working order. However, these techniques carry risks associated with changing batteries or tampering with the key fob. If you're not confident doing these things yourself, it's recommended that you contact a professional auto locksmith.
Change the Battery
It could be time to change the battery in your key fob if it no longer works as it should. You can purchase replacement batteries at any chain drugstore nationwide or at the parts department at your local dealership for cars. Some manufacturers even include a spare key fob battery inside the packaging when you purchase your car from them.
First, you'll need to find out the type of battery is used in your key fob. The manufacturer will likely have this information on their website, or you can check the key fob's specifications. Generally, the most common battery used in a key fob is a button cell type, similar to those used in watches and remote controls. These kinds of batteries are typically found at stores such as Walgreens and Energizer, and can be bought at less than $5 for a set of two.
If you are aware of the type of battery your key fob uses, you can remove it 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 seam or notch where they connect. After the fob has been opened, the battery should come out, and you can then insert the new one in the same orientation as the old one. 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 make sure that all buttons work properly. Pressing the locks and unlock buttons on the key fob while it is pointed at your vehicle will help you determine if everything is working in the way it should. If your vehicle doesn't respond to the keyfob, you may require reprogramming the fob and establish wireless connectivity. This is a straightforward process that requires your phone or another device.
Reprogram your key fob
If you're having issues with your key fob and believe it's time to replace it however, it may not be required to replace it. Instead the battery you have may require reprogramming. This process varies by car and the best option is to consult the owner's manual (usually available in PDF format on the website of the automaker) or look on YouTube for videos explaining how to accomplish this.
Most modern vehicles require a special procedure to put the vehicle into 'programming mode,' which is usually done by pressing the power button on the driver's side door or ignition a few times while pressing the fob's button within a specific time period. The fob transmits its digital identification code to the vehicle, which then saves it. Once the fob is programmed, it will perform the same way as a normal key.
Reprogramming a fob will erase any previous keyfobs. If you want to keep the other fobs following the first, they should be programmed quickly and carefully.
Sometimes, you can find replacement batteries for car key fobs at hardware stores, large retailers, or even online. However, you must be aware of the model and make of your car before buying a fob battery as the right type isn't always easy to locate.
A CR editor stumbled across an battery for her key fob, but it was from another vehicle. This meant she was able to start her car and open the door, but she was unable to lower the windows.
Dealers can be a great resource in this situation, since they have the tools to reprogram the fob on the specific vehicle. Some European vehicles, such as the ones manufactured by Audi and BMW typically require a dealer for this service due to the fact that they have specialized security features that can only be reset by the manufacturer. Some dealers, like those at Toyota and Lexus were willing to reprogramme the key fob in a replacement in the event that you could identify the exact model and year of your vehicle.
Replace the Button
If you've tried changing the battery, reprogramming your key fob and you're still unable to start your car, it's time to replace that button on your key. The key on your car receives a lot of use and jolting over time and can sometimes get stuck or damaged. Each time you press the button on your key fob a unique code is sent out in a sequence that the vehicle's receiver is able to recognize. If you attempt to operate your car from a distance without using the correct code could cause it not to recognise you and lock the doors or turn off the engine.
You can purchase replacement buttons online or in several local hardware stores. It is simple to install them and they are very simple to open.
Contact an Auto Locksmith
It could be time to consult the experts if you are experiencing problems with the key button on your car. Auto locksmiths are experts in the repair of electronic keys and locks. They have the experience and tools required to recognize and fix a range of issues with your key fob including replacing batteries and reprogramming them. They have the knowledge and skills to handle more complex tasks, like fixing a broken key or cutting a replacement key.
One of the main reasons for a car key button to stop working is because the switch inside has worn out. This is due to excessive use and exposure to the elements. The switch is made from an extremely hard plastic with multiple switches on its surface. Each switch is responsible for activating a specific function that you use the key to activate. As the switch gets older over time, it becomes harder to activate each of these functions. In the end, you'll have to press harder on the switch to get it to work. This could cause further damage to the switch and reduce its lifespan.
The most straightforward solution to this problem is to replace the battery inside your car's key fob. The majority of cars have lithium-ion coin or button batteries which you can find in supermarkets, pharmacies, and home improvement stores. After you've replaced the battery the key fob will work again.
If the issue persists it could be because the contacts inside your key fob have become worn out. The contacts are made of rubber, and covered with an electrically conducting film that wears out. They are exposed to elements as you use the keypad and are constantly exposed to dirt and moisture. They'll eventually wear down to the point where they can no longer make contact with the circuit board, or the sensor under the keypad.
You can try to have the key fob replaced at a vehicle dealership, but it can be costly and could take a long time. The other option is to call an auto locksmith in your car key repairs area who can repair your key fob and save you money.