Car Key Button Repair
The buttons on keys for cars are subjected to a lot and are especially vulnerable if used frequently. This can lead to them becoming damaged over time.
There are many quick solutions to get your keys working again. However, these techniques carry the potential for dangers when changing batteries or altering your key fob. If you're not comfortable with these methods, it is recommended to seek advice from a professional auto-locksmith.
Change the Battery
It's possible to change the battery in the case that your key fob doesn't function as it should. You can usually buy replacement batteries from any chain drug store or in the parts department at your car dealership. Some manufacturers include a spare battery with your car when you buy it.
First, you'll need to find out 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's specifications. The most commonly used type of battery found in a keyfob is the button cell similar to those found in watches and remotes. These kinds of batteries are commonly sold at places like Walgreens and Energizer, and are available at less than $5 for a pack of two.
Once you know what kind of battery your key fob has then you can remove it and remove the old battery. You can open most key fobs using your fingers or a flat tool, like a screwdriver, at the seam or notch where they join. Once nearby key repair shop has been opened, the battery will come out. It is then possible to replace it in the same orientation. Many key fobs are powered by CR2032 batteries. These batteries are available at retailers that sell AAA or AA batteries.
After the new battery has been in place After that, you can snap the two pieces of the key fob together and check that all buttons are functioning correctly. You can test if everything is working properly by pressing the lock and unlock button on the key fob while pointing it towards your vehicle. If your vehicle isn't responding to the key fob, you may require reprogramming the fob and establish wireless connectivity. It's an easy procedure and requires only the use of a phone or other device to accomplish this.
Reprogram the Key Fob
If you're experiencing issues with your key fob, and you think it's time to replace it however, it may not be required to replace it. Instead, the old battery may require reprogramming. This procedure is different for every car so the best way to find out is to consult the owner's manual (usually available in PDF form on the website of the automaker) or search YouTube for videos that explain how to go about this.
In most modern vehicles, a special procedure is required to put the vehicle in '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 the fob within a specific time frame. This is how the fob communicates its digital identification code to the vehicle, which stores it in the memory. Once the fob is programmed, it can behave as normal keys.
It's important to note that changing the programming of a key fob will erase any other key fobs that had been programmed previously. If you wish to keep the other fobs after the first, then they should be reprogrammed swiftly and with care.
You can often find replacement batteries for your car key fob at hardware stores, big-box retailers, or even online. You will need to know your car's model and make before you purchase a fob because it can be difficult to find the right battery.
A CR editor discovered an battery for her key fob but it was from a different vehicle. This meant she was able to start her car and unlock the door, but she was unable to lower the windows.
Luckily, dealers can help in this situation and most dealers have the equipment needed to reprogram a fob into the specific vehicle. Some European automobiles, like the ones manufactured by Audi and BMW, will usually require you to go to a dealer for this service because they use special security features that can only be reset by the manufacturer. Other dealers we spoke to, including those from Toyota and Lexus were willing to attempt reprogramming a replacement fob as they knew the exact make and model of your car.
Replace the Button
If you've tried changing the battery or reprogramming the key fob but cannot 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 can be damaged or stuck over time. Every time you press the button on your key fob, a unique code is sent in a sequence which the vehicle's receiver can recognize. If you attempt to operate your vehicle from far away, it may not recognise you. It might shut the doors or turn off the engine.
You can purchase replacement buttons online or in several local hardware stores. It is easy to install buttons and they are extremely simple to open.
Contact an Auto Locksmith
It's time to speak with a professional if you are experiencing problems with the key button on your car. Auto locksmiths specialise in the repair of electronic car keys and their associated locks. They have the experience and tools necessary to diagnose and fix a variety of issues that may arise with your key fob including replacing batteries and changing the programming. They also have the skills and expertise to tackle more complex tasks, such as repairing damaged buttons or cutting a replacement key.
One of the most common reasons for a car's key button to stop working is that the switch inside it has worn out. This is caused by overuse and exposure to the elements. The switch is typically constructed from a hard plastic material and it has several different switches on the surface. Each of these switches is responsible for activating a specific function that you use the key to activate. As the switch gets older, it becomes more difficult to activate these functions. You will have to exert more pressure on the switch in order to activate it. This could cause more damage to the switch, decreasing 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. Once you've replaced the battery the key fob will be working again.
If the issue persists it could be that the contacts on the key fob have worn out. The contacts are rubber-like and coated with an electric conducting film, which could wear out over time. They are exposed to the elements as you use the key which means they 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 the sensor beneath the keypad.
You can try to have the key fob replaced by visiting an auto dealer, but it can be costly and could take a long time. Another option is to call an auto locksmith in your area, who can fix your key fob and save you money.