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Car Key Button Repair

Car key buttons take lots of abuse particularly if they are used frequently. As time passes, they may be damaged.

There are a few quick fixes that can get your keys back in working order. However, these methods have risks associated with changing batteries or altering the key fob. If you're not confident 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 may be time to replace the battery. You can find replacement batteries in any chain drugstore nationwide or in the parts department of your local car dealership. Some manufacturers include an extra battery with your vehicle when you purchase it.

The first thing you'll have to do is find out what kind of battery your key fob uses. The manufacturer may have this information on their website or you can look it up on the key fob itself. Generally, the most common battery that is used in key fobs is a button cell, similar to those used in watches and remote controls. These types of batteries are commonly available at stores like Walgreens and Energizer, and are available for under $5 for a package of two.

You can take the old battery off your key fob when you know the type of battery it is using. The majority of key fobs are made with a seam or notch that connects them and can be opened by using your fingers or with a flat tool like a screwdriver. After auto key repair has been opened, the battery should be able to pop out and you can then insert the new one with the same orientation as the previous one. The majority of key fobs utilize CR2032 3V batteries, which are available at numerous retailers that sell AAA and AA batteries.

You can join the two halves together after you have inserted the new battery and test the key fob to ensure that all buttons function correctly. You can verify that everything is working properly by pressing the lock and unlock buttons on the key fob while pointing it toward your vehicle. If your vehicle is not responding to the key fob, it could be required to reprogram the key fob and establish a wireless connection between the two. This is a easy process that requires a phone or other device.

Reprogram the Key Fob

If your key fob doesn't function and you believe it needs to be replaced, it may not need an entirely new battery, but rather the old one has to be reset. This procedure is different for each car. To learn how to go about it, consult your owner's manual. It's usually available in PDF format on the automaker website. You can also search YouTube for videos.

In the majority of 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 a fob in the time frame specified. This is how the fob transmits its digital identity code to the vehicle, which stores it in its memory. The fob will work like a regular key after it is programmed.

Reprogramming a keyfob erases any previous keyfobs. Therefore, if you want to keep other fobs, they need to be carefully and quickly reprogrammed after the first one.

Sometimes you can find replacement batteries for car key fobs at hardware stores, major retailers, or even online. However, you need to be aware of the model and make of your car before purchasing a battery for your fob because the right type isn't always easy to locate.

A CR editor found a battery that fit the key fob she used, but it was for a different car. This meant that, while she could start the car and open the doors, she wasn't in a position to lower the windows.

Dealers can be of great assistance in this situation, since they have the tools to reprogram the fob on a specific vehicle. Some European cars, such as those made by Audi and BMW typically require a dealer to get this service due to the fact that they have special security features that can only be reset by the manufacturer. Some dealers, such as those at Toyota and Lexus were willing to reprogram an alternative key fob if you knew the exact model and brand of the car you own.

Replace the Button

If you've tried changing the battery or reprogramming the key fob and still not being able to start your car, it may be time to replace the button on your key. The button on your car key is subjected to a lot use and jolting and may get damaged or stuck over time. Every time you press the button on your key fob, a unique code is sent out in a pattern that the receiver in the vehicle is able to recognize. When you try to operate your vehicle from a distance without using the correct code can cause it not to recognise you and lock the doors or shut off the engine.

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

Contact an Auto Locksmith

It may be time to consult the experts if you are experiencing problems 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 diagnose and fix various issues with your key fob. This includes replacing batteries and changing the programming. They also have the expertise and experience to handle more complicated jobs such as fixing damaged buttons or cutting a replacement key.

The switch inside the button for the car key is usually worn out. This is due to excessive use and exposure to the elements. The switch is made from an extremely hard plastic with multiple switches on its surface. Each switch activates the function that you select with the key. As the switch age, it becomes more difficult to activate these functions. You will need to exert more pressure on the switch to make it work. This can further damage the switch and shorten its lifespan.





Replace the battery in your key fob. It is easy to find lithium-ion button and coin cell batteries at supermarkets, pharmacies and home improvement stores. After you've replaced the battery, your key fob should be working again.

If the issue persists it could be that the contacts on 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. When car key repair use the key, they are constantly exposed to dust and moisture. They will eventually wear to the point where they can no longer make contact the circuit board or the sensor underneath the keypad.

You can try to get the key fob replaced by visiting a vehicle dealership, but it can be costly and can take an extended time. Another alternative is to contact a local car locksmith, who can repair your key fob and help you save money.