The buttons on keys for cars are subjected to a lot particularly if they are used frequently. As time passes, they may become faulty.
There are a variety of quick fixes to get your keys back to working. However, these solutions come with risks when it comes to changing batteries or altering the 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 replace the battery in your key fob if it isn't working as it should. You can buy replacement batteries at any national chain drugstore or at the parts department of your local car dealership. Some manufacturers offer an extra battery with your vehicle when you purchase it.
You will first need to find out the type of battery is used in your key fob. The manufacturer should have this information on their website, or you can check the actual key fob. The most popular type of battery found in a keyfob is the button cell that is similar to those found in watches and remotes. These types of batteries are commonly available at stores 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 is using then you can open it and take out the old battery. It is possible to open most key fobs using your fingers or a flat tool such as a screwdriver, at the seam or notch where they join. Once the fob is opened, the battery should pop right out and you can then insert the new one with the same orientation as the old one. The majority of key fobs utilize CR2032 3V batteries, which are easily accessible at a variety of stores that sell AAA and AA batteries.
Once the new battery is in place After that, you can connect the two pieces of the key fob together and check that all buttons are functioning correctly. Pressing the locks and unlock buttons on the key fob while pointing it towards your vehicle will help determine if everything is functioning exactly as it should. If your vehicle isn't responding to the key fob, you may require reprogramming the fob to establish a wireless connection. This is a fairly easy process that requires a phone or other device.
Reprogram your key fob
If your key fob does not work and you think it's time to replace it It may not require the replacement of a battery, but instead the old one has to be changed. 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 search YouTube for videos on how to accomplish this.
Most 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 multiple times while pressing the fob's button within a specific time period. The fob transmits its unique digital identification code to the vehicle, which then saves it. The fob functions as an ordinary key once it has been programmed.
Reprogramming a fob will erase any previous keyfobs. If you wish to keep the other fobs following the first, then they should be reprogrammed swiftly and with care.
There are a few replacement batteries for your car key fob in hardware stores, big-box retailers or on the internet. It is important to know the make and model before you purchase a fob as it may be difficult to find the right battery.
A CR editor discovered the battery for her key fob however, it was from a different vehicle. This meant that while she was able to start the car and open the doors, she wasn't able to lower the windows.
Fortunately, the dealer can assist you in this instance in this case, since they have the necessary equipment to reprogram a fob to the specific vehicle. car key fob repairs are required to perform this procedure on certain European automobiles like Audi and BMW because they have specialized security features which can only be reset in the factory. Other dealers we spoke with like those at Toyota and Lexus were willing to reprogramme the fob in a replacement as long as you knew the exact make and model of your car.
Replace the Button
If you've tried changing the battery, or reprogramming your key fob, and still can't start your car it could be time to replace the button on the key. The button on the car key is subject to a lot of pressure and jostling and can become stuck or damaged over time. When you press the button on your key fob an individual code is sent out in a sequence which the vehicle's receiver is able to recognize. When you try to operate your car from a distance without using the correct code can cause it to not recognize you and lock the doors or shut off the engine.
You can purchase replacement buttons online or in many local hardware stores. They are relatively simple to open and install and require just a bit of clear plastic tape to cover the old button.
Contact an Auto Locksmith
It's time to consult the experts when you're having issues with the key button on your car. Auto locksmiths are experts in the repair of electronic keys and locks. These experts have the tools and know-how to diagnose and fix various issues with your key fob. This includes replacing batteries and changing the programming. They have the knowledge and skills to handle more complex tasks, like repairing a broken key or cutting a replacement key.
The switch on the car key button is usually worn out. The use of the switch and exposure to elements are the main reasons. The switch is made from hard plastic and has multiple switches on its surface. Each switch activates the function for which you use the key. As the switch ages it becomes harder to activate these functions. You will need to apply more pressure to the switch to get it to work. This could further damage the switch and shorten the life span of the switch.
Replace the battery in your key fob. The majority of cars have lithium-ion coin or button cell batteries that you can find at pharmacies, supermarkets and home improvement stores. Your key fob should 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 rubber-like and coated with an electric conducting film, which can wear down over time. They are exposed to elements while you use the key and are constantly exposed to dirt and moisture. Eventually, they will wear down to the point that they're no longer in contact with the circuit board or sensor underneath the keypad.
You can try to get the key fob replaced by going to an auto dealer, but this could be expensive and may take a long time. You can also contact an expert locksmith in your area who will repair your key fob for a lower price.
