Car Key Button Repair
Car key buttons take lots of abuse particularly if they are used frequently. This can result in them becoming faulty over time.
There are a few simple fixes that will allow your keys working again. However, these methods have risks when it comes to changing batteries or tampering with the key fob. If you're not comfortable with these methods, it's best to consult a professional auto-locksmith.
Change the Battery
If you notice that your key fob no longer working as it should, it might be time to replace the battery. You can purchase replacement batteries in any chain drugstore nationwide or at the parts department of your local dealership for cars. Some manufacturers include an extra battery in your car when you buy it.
You will first need to find out what kind 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. The most popular type of battery found in the keyfob is the button cell that is similar to those found in watches and remotes. These types of batteries are typically sold at places like Walgreens and Energizer, and can be bought at less than $5 for a set of two.
You can take the old battery off your key fob when you know the type of battery it uses. The majority of key fobs are made with a notch or a seam that connects them which you can either open by using your fingers, or by using an instrument that is flat, such as a screwdriver. Once the fob is opened, the battery will be able to pop out and you can then put in the new one with the same orientation as the previous one. Most key fobs use CR2032 3V batteries, which are available at numerous stores that sell AAA and AA batteries.
After the new battery has been inserted, you can take the two halves of the key fob back together and check that all buttons work correctly. Pressing the locks and unlock buttons on the key fob while it is pointed at your vehicle will help you determine whether or not everything is functioning as it should be. If your car does not respond to the fob, you might require reprogramming the fob to establish wireless connectivity. Fortunately, this is an easy procedure and requires the use of your phone or other device to do so.
Reprogram the Key Fob
If your key fob won't work and you believe it's time to replace it It may not require the replacement of a battery, but instead the old one has to be reprogrammed. This procedure varies for each vehicle so the best way to find out is to refer to 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 go about this.

The majority of modern automobiles require a particular procedure to put the vehicle in "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 specific time period. The fob transmits its unique digital identification code to the vehicle, and then stores it. The fob can function as a regular key after it is programmed.
Reprogramming a fob will erase any previous keyfobs. If you want to keep the other fobs after the first, they must be reprogrammed quickly and carefully.
Sometimes, car remote key repair shop near me can find replacement batteries for key fobs for cars at hardware stores, large retailers, or even on the internet. It is important to know your car's model and make before you purchase a key fob since it can be difficult to locate the right battery.
A CR editor found an battery for her key fob however, it was from another vehicle. This meant that she could start her car and open the door, but she couldn't lower the windows.
Fortunately, the dealer can assist you in this instance and most dealers have the equipment needed to reprogram a fob to the specific vehicle. Dealers are required to perform this procedure on some European cars such as Audi and BMW because they come with specialized security features that can only be reset at the factory. Some dealers, such as those at Toyota and Lexus were willing to reprogramme the key fob in a replacement provided you knew the exact model and brand of the car you own.
Replace the Button
If you've tried changing the battery, or reprogramming your key fob and still can't start your car it's time to replace that button on your key. The car key button gets many uses and jerking over time and can sometimes become stuck or broken. Each press of the button on your car key fob releases a distinct code in a sequence that is recognized by the car's receiver. When you try to operate your car from a distance without using the correct code could cause it to not recognize you and shut the doors or turn off the engine.
You can purchase replacement buttons online or at several local hardware stores. They are fairly easy to open and install 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 if you are experiencing problems with your car's key button. Auto locksmiths are experts in the repair of electronic keys and locks. These specialists have the tools and know-how to identify and fix issues with your key fob. This includes replacing batteries and changing their programming. They also have the skills and expertise to tackle more complicated jobs such as fixing a broken button or even cutting a new replacement key.
One of the most common reasons for a car key switch to stop working is that the switch inside has worn out. This is due to overuse and exposure to the elements. The switch is made from an extremely hard plastic with multiple switches on its surface. Each of these switches activates the function for which you are using the key. 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 in order to enable it to function. This could cause further damage to the switch and shorten the life span of the switch.
The easiest way to solve this problem is to replace the battery on your car key fob. You can find lithium-ion button or coin cell batteries in supermarkets, pharmacies and home improvement stores. After replacing the battery your key fob should work once more.
If the problem persists it could be that the contacts inside your key fob are worn out. The contacts are rubbery and are covered with an electrical conducting film that can wear out. When you use the key, they are exposed to dust and moisture. They will eventually wear to the point where they are unable to contact with the circuit board, or sensor beneath the keypad.
The dealership can replace the key fob, but it's costly and takes a lot of time. The other option is to call an auto locksmith in your area who can fix your key fob and help you save money.