Searching For Inspiration? Check Out Car Key Button Repair Car Key Button Repair

The buttons on keys for cars are subjected to a lot and are especially vulnerable if often used. This can lead to them becoming faulty over time.

There are a few easy fixes that can get your keys back to working. These solutions are not completely safe however. Altering batteries or altering your key fob's security can be dangerous. If you are not comfortable with these methods, it's best to consult an expert auto-locksmith.

Change the Battery

It could be time to replace the battery in your key fob if it isn't working as it should. You can find replacement batteries at any chain drugstore nationwide or in the parts department at your local dealership for cars. Some manufacturers offer a spare battery with the car when you purchase it.

You will first need to find out what type of battery is used in your key fob. The manufacturer will likely have this information on their website or on the key fob's specifications. Generally speaking, the most popular battery used in key fobs is a button cell type similar to the ones used in watches and remote controls. These types of batteries are typically found at stores such as Walgreens and Energizer, and are available for purchase at less than $5 for a package of two.

Once you know what kind of battery your key fob uses, you can open it and take out the old battery. The majority of key fobs are made with a notch or 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 fob has been opened, the battery should pop right out and you can insert the new one with the same orientation that the old one. A lot of key fobs are powered by CR2032 batteries. These batteries are sold at retailers that sell AAA or AA batteries.

Once the new battery is installed after which you can snap the two halves of the key fob back together and test it to ensure that all buttons function correctly. You can determine if everything is functioning properly by pressing the lock and unlock buttons on the key fob, while pointing it toward your vehicle. If your vehicle isn't responding to the fob, you might have to reset the fob to establish a wireless connection. This is a simple process that only requires your phone or a different device.

Reprogram your key fob

If your key fob does not work and you believe it needs to be replaced, it may not need the replacement of a battery, but rather the original one must be reprogrammed. i was reading this is different for each vehicle. To find out how to go about it go through the owner's manual. It's typically available in PDF format on the automaker website. You can also search YouTube for videos.

Most modern vehicles require a specific 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 a button on the fob within a certain time frame. This is how the fob transmits its digital identity code to the vehicle, which stores it in its memory. After the fob is programmed, it will behave as an ordinary key.

It is important to remember that reprogramming a key fob will wipe out any other key fobs that had been previously programmed. Therefore, if you wish to keep other fobs, they must be carefully and quickly reprogrammed following the initial one.

Sometimes you can find replacement batteries for car key fobs at hardware stores, major retailers, or even on the internet. You must be aware of your car's make and model before you purchase a fob as it may be difficult to locate the right battery.

A CR editor found an battery for her key fob, however, it came from a different vehicle. This meant she could start her car and unlock the door, but she was unable to lower the windows.

Fortunately, dealers can assist in this case and most dealers have the equipment needed to reprogram a fob into the specific vehicle. Certain European cars, such as those manufactured by Audi and BMW, will usually require an authorized dealer for this service since they utilize specialized security features that can only be reset by the manufacturer. Some dealers, like those at Toyota and Lexus were willing to reprogramme a replacement key fob provided you knew the exact model and brand of your car.

Replace the Button

If you have tried changing the battery and reprogramming the key fob but not being able to start your car, it may be time to replace the button on the key. The car key button gets a lot of use and jerking over time and can get stuck or even broken. Every time you press the button on your key fob, the unique code is sent out in a sequence that the receiver inside the vehicle is able to recognize. Trying to operate your car from a distance without using the proper code could cause it to not be able to recognize you and shut the doors or turn off the engine.

You can purchase replacement buttons online or in numerous local hardware stores. They are relatively simple to install and open and require only a small amount of clear plastic tape to cover the old button.

Contact an Auto Locksmith

It may be time to speak with a professional when you're having issues with the key button on your car. Auto locksmiths specialize in the repair of electronic car keys as well as their associated locks. These specialists have the tools and expertise to determine and fix issues with your key fob. This includes replacing batteries and changing their programming. They are equipped with the knowledge and skills to handle more complicated tasks, such as fixing a damaged key or cutting the replacement key.

One of the main reasons for a car's key button to stop working is that the switch inside has worn out. The use of the switch and exposure to elements are the primary causes. The switch is typically made from a hard plastic and has many different 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. This means that you'll have to press down harder on the switch to enable it to function. This could cause further damage to the switch and reduce its lifespan.

The easiest way to solve this problem is to replace the battery in your car key fob. You can locate lithium-ion button or coin cell batteries in pharmacies, supermarkets and home improvement stores. Your key fob should be working after replacing the battery.


If the issue persists, it could be that the contacts in your key fob have become worn out. The contacts are rubber-like and coated with an electricity conducting film that can wear away over time. They are exposed to the elements as you use the key which means they are constantly exposed to dirt and moisture. Eventually, they will become worn until they're no longer in contact with the circuit board or sensor underneath the keypad.

You can try to have the key fob replaced by going to an auto dealer, but this can be expensive and may take an extended time. You can also contact an expert locksmith in your area who will fix your key fob for an affordable price.