The One Car Key Button Repair Mistake Every Beginner Makes

· 5 min read
The One Car Key Button Repair Mistake Every Beginner Makes

Car Key Button Repair

The buttons on keys for cars are subjected to a lot, especially if they are frequently used. As time passes, they may become faulty.

There are a variety of quick fixes to make your keys work again. However, these solutions come with risks when it comes to changing batteries or altering the key fob. If you're not comfortable performing these yourself, it's recommended to contact a professional auto locksmith.

Change the Battery

It may be time to replace the battery in your key fob if it no longer works as it should. You can usually buy replacement batteries at any national chain drug store or in the parts department at your car dealership. Some manufacturers include an extra battery with your vehicle when you purchase it.

You will first need to find out the kind 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. The most common kind of battery that is found in a keyfob is the button cell like the ones found in watches and remotes. These types of batteries are typically found at stores such as Walgreens and Energizer, and are available at less than $5 for a set of two.

Once you are aware of the type of battery your key fob uses, you can open it and remove the old battery. It is possible to open most key fobs using your fingers or a flat tool, like a screwdriver at the notch or seam where they join. After the key fob has been opened the battery will come out. Then, you can replace it with the same design. The majority of key fobs utilize CR2032 3V batteries, which are readily available at numerous stores that sell AAA and AA batteries.

You can snap the two halves back together after inserting the new battery, and then test the key fob to make sure that all buttons are functioning correctly. You can verify that everything is working properly by pressing the lock and unlock buttons on the key fob while pointing it at your vehicle. If your car is not responding to the key fob, it might be necessary to reprogram the key fob and establish an electronic connection between the two. It's an easy procedure and only requires the use of your phone or other device to accomplish this.

Reprogram the Key Fob

If you're having trouble with your key fob and believe that it's time to get a new one, it might not be necessary to replace it. Instead the battery you have may require reprogramming. This procedure varies for each vehicle so the best way to find out is to refer to the owner's manual (usually accessible in PDF format on the website of the automaker) or search YouTube for videos on how to go about this.

In most modern vehicles, a particular procedure is required to put the vehicle in 'programming mode'. This usually involves pressing the power button several times on the driver's door or ignition, while simultaneously pressing a button on a fob in a time-specific period. This is how the fob communicates its digital identity code to the vehicle, and it stores it in the memory. After the fob is programmed, it can perform the same way as normal keys.

Reprogramming a keyfob will erase any previous keyfobs. If you want to keep the other fobs after the first, they should be programmed quickly and carefully.

Sometimes, you can find replacement batteries for key fobs for cars in hardware stores, big retailers, or even on the internet.  mobile key repair near me  will need to 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 once came across a battery that fit the key fob she used however, it was for a different vehicle. This meant that while she could start the car and unlock the doors, she wasn't capable of lowering the windows.

Dealers can be a great resource in this situation, since they have the equipment to reprogram the fob for the specific vehicle. Dealers are required to perform this procedure on some European vehicles like Audi and BMW because they have specialized security features that can only be reset in the factory. Other dealers we spoke with like those at Toyota and Lexus, were willing to try reprogramming the fob in a replacement as provided you know the exact make and model of the vehicle you are driving.

Replace the Button

If you have tried changing the battery and reprogramming the key fob, but you still not being able to start your car, it may be time to replace the button on your key. The car key button gets a lot of use and jostling over the years and may become stuck or broken. Every time you press the button on your key fob emits a different code that is recognized by the receiver inside the vehicle. If you attempt to operate your vehicle from a distance without the proper code could cause it to not recognize you and shut the doors or turn off the engine.



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

Contact an Auto Locksmith

If you're having trouble with the car key button it could be time to consult the experts. Auto locksmiths are experts in the repair of electronic keys and locks. They have the experience and tools necessary to diagnose and repair a variety of issues with your key fob including replacing batteries and changing their programming. They are equipped with the knowledge and expertise to tackle 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 it has worn out. Overuse and exposure to elements are the primary causes. The switch is made of a hard plastic and has several switches on its surface. Each switch is able to activate the function that you select with the key. As the switch ages over time, it becomes harder to activate these functions. In the end, you'll need to push down harder on the switch to enable it to function. This could further damage the switch and shorten the life span of the switch.

Replace the battery in your key fob. Many models of car use lithium-ion coin or button batteries which you can find in supermarkets, pharmacies, and home improvement stores. Your key fob should now work once you have replaced the battery.

If the issue persists it could be that the contacts inside the key fob have worn out. The contacts are rubbery and are covered with an electrical conducting film that wears out. They are exposed to elements while you use the keypad which means they are constantly exposed to dirt and moisture. Eventually, they will get worn down to the point that they're no longer in contact with the circuit board or the sensor beneath the keypad.

The dealer can replace the key fob, but it can be expensive and take a long time. You can also contact an emergency locksmith who will repair your key fob at less.