20 Things That Only The Most Devoted Car Key Button Repair Fans Should Know

· 5 min read
20 Things That Only The Most Devoted Car Key Button Repair Fans Should Know

Car Key Button Repair

Car key buttons take many abuses particularly when they are used regularly. In time, they could become damaged.

There are a variety of quick solutions to get your keys back to working. However, these solutions come with the potential for dangers when changing batteries or tampering with your key fob. If you're not comfortable with these methods, it is recommended that you consult with a professional auto-locksmith.

Change the Battery

It's possible to change the battery in your key fob if it doesn't function as it should. You can usually buy replacement batteries from any chain drug store, or the parts department of your automobile dealership. Some manufacturers even include an extra key fob battery in the packaging when you purchase your vehicle from them.

It is first necessary to find out what kind of battery is used in your key fob. This information is usually available on the manufacturer's website or by looking at the key fob. Generally speaking, the most popular battery that is used in key fobs is a button cell, similar to those used in remote controls and watches. These types of batteries are available at stores like Walgreens and Energizer, and can be bought for less than $5 for a package of two.

Once you know what kind of battery your key fob is using you can open it up and take out the old battery. It is possible to open most key fobs using your fingers or a flat tool like a screwdriver at the seam or notch where they connect. Once the key fob has been opened the battery will pop out. It is then possible to replace it in the same orientation. Most key fobs use CR2032 3V batteries, which are readily accessible at a variety of stores that sell AAA and AA batteries.

Once the new battery is inserted after which you can snap the two pieces of the key fob back together and test it to ensure that all buttons function properly. You can verify that everything is functioning properly by pressing the lock and unlock button on the key fob while pointing it toward your vehicle. If your vehicle does not respond to the fob, you might require reprogramming the fob and establish an internet connection. This is a relatively simple process that only requires your phone or another device.

Reprogram the Key Fob

If you're experiencing issues with your key fob, and you think it's time to replace it however, it may not be necessary to replace it. Instead the old battery might need to be reprogrammed. This procedure is different for every car and the best option is to refer to the owner's manual (usually available in PDF format on the automaker's website) or look on YouTube for videos on how to do this.

The majority of 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 specific time period. The fob transmits its unique digital identification code to the vehicle, which then will save it. The fob will work like an ordinary key once it has been programmed.

Reprogramming a keyfob will erase any previous keyfobs. Therefore, if you'd like to keep other fobs, they need to be reprogrammed with care and speed following the initial one.

There are a few replacement batteries for a key fob for your car at hardware stores, big-box retailers, or even online. It is important to know the model and make prior to deciding to purchase a fob because it can be difficult to locate the right battery.

A CR editor stumbled across an battery for her key fob, but it was from another vehicle. This meant she could start her car and open the door, but couldn't lower the windows.


Dealers can be extremely helpful in this situation, since they have the tools to reprogram the fob for a specific vehicle. Certain European vehicles, such as the ones manufactured by Audi and BMW typically require you to go to an authorized dealer for this service due to the fact that they have special security features that can only be reset by the manufacturer. Other dealers we spoke with such as those from Toyota and Lexus, were willing to reprogramme an original fob so they knew the exact model and make of the vehicle you are driving.

Replace the Button

If you've tried changing the battery, reprogramming your key fob, but you're still unable to start your car, it's time to replace that button on the key. The button on your car key is subjected to a lot of use and jolting and may become stuck or damaged over time. Each time you press the button on your key fob, the unique code is transmitted in a sequence which the vehicle's receiver can recognize. If you attempt to operate your vehicle from a distance and not using the correct code could cause it to not recognize you and then lock the doors or shut off the engine.

You can buy replacement buttons online or at many local hardware stores. It is simple to install them and they are also very easy to open.

Contact an Auto Locksmith

If you're experiencing issues with the car key button it could be time to consult the experts.  car key fob repair near me  in the repair of electronic car keys as well as their associated locks. These specialists have the tools and knowledge to determine and fix issues with your key fob. This includes replacing batteries and reprogramming them. They have the knowledge and skills to handle more complex jobs, like fixing a broken key or cutting an alternative key.

The switch in the button for the car key is usually worn out. Excessive use and exposure to elements are the main causes. The switch is typically constructed of a tough plastic material and it has several different switches on its surface. Each switch is responsible for activating the specific function that you use the key to activate. As the switch wears out over time, it becomes harder to activate each of these functions. As a result, you'll have to press down more force on the switch to enable it to function. This could cause further damage to the switch and shorten its lifespan.

The most effective solution to this problem is to replace the battery inside your car's key fob. You can easily find lithium-ion button or coin cell batteries in pharmacies, supermarkets and home improvement stores. After replacing the battery, your key fob should work again.

If the issue persists it could be because the contacts in your key fob are worn out. The contacts are rubber-like and coated with an electric conducting film, which could wear down over time. When you use the keypad, they are exposed to moisture and dust. They'll eventually wear down to the point where they're unable to contact the circuit board or the sensor under the keypad.

You can try to have the key fob replaced by going to an auto dealer, but this could be expensive and may take quite a while. You can also call a local locksmith who will repair your key fob for a lower price.