Car Key Button Repair
The buttons on car keys are subjected to a lot, especially if they are used frequently. This could lead to them becoming damaged over time.
There are many quick fixes to get your keys working again. These methods are not without risk, however. Making changes to batteries or tampering with your key fob's security can be dangerous. If you're not comfortable performing these yourself, it is recommended to consult an auto locksmith professional.
Change the Battery
If you're noticing that your key fob is not working as it should, it may be time to replace the battery. You can usually buy replacement batteries from any chain drug store or the parts department at your car dealership. Some manufacturers offer a spare battery with your vehicle when you purchase it.
It is first necessary to find out the kind of battery is being used in your key fob. This information is typically found on the site of the manufacturer or by checking the key fob. Generally, the most common battery used in the key fob is a button cell that is similar to the ones used in watches and remote controls. These kinds of batteries are available at stores like Walgreens and Energizer, and are available for less than $5 for a set 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 by using your fingers or a flat tool such as a screwdriver, at the seam or notch where they join. Once the key fob has been opened, the battery will be released. Then, you can replace it with the same orientation. Most key fobs use CR2032 3V batteries, which are easily available at numerous stores that sell AAA and AA batteries.
You can snap the two halves back together after you have inserted the new battery and test the key fob to confirm that all buttons work properly. You can test if all functions are working correctly by pressing the lock and unlock buttons on the key fob, while pointing it towards your vehicle. If your vehicle is still not responding to the key fob, it might be necessary to reprogram the key fob and establish an internet connection between the two. This is a fairly straightforward process that requires your phone or a different device.
Reprogram the Key Fob
If your key fob does not work and you believe it's time to replace it the fact is that it might not require an entirely new battery, but rather the original one must be changed. This procedure varies for each vehicle so the best way to find out is to read the owner's manual (usually accessible in PDF format on the automaker's website) or search YouTube for videos explaining how to go about this.
In modern vehicles, a particular procedure is required to put the vehicle into "programming mode". This typically involves pressing the power button a few times on the door of the driver or ignition, while simultaneously pressing the button on the fob within a specific time frame. The fob transmits its unique digital identification code to the vehicle, and then will save it. After the fob is programmed, it can function like a normal key.
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.
Sometimes you can find replacement batteries for car key fobs at hardware stores, major retailers, or even online. It is important to know your car's model and make before you purchase a fob as it isn't easy 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 car. This meant that she could start her car and unlock the door, but couldn't lower the windows.
Dealers can be of great assistance in this situation, since they have the equipment necessary to reprogram the fob for a specific vehicle. Certain European vehicles, such as the ones manufactured by Audi and BMW generally require a dealer for this service due to the fact that they have specific 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 the fob in a replacement as provided you know the exact make and model of the car you own.
Replace the Button
If you've tried changing the battery and programming the key fob but can't start your car it may be time to replace the button on your key. The car key button gets lots of use and jerking over time and may get stuck how to repair car key fob or even broken. Every time you press the button on your car key fob emits a different code in a sequence that is recognized by the receiver inside the vehicle. When you try to operate your car from a distance and not using the proper code could cause it to not be able to recognize you and lock the doors or shut off the engine.
You can purchase replacement buttons online or in many local hardware stores. It is simple to install them and they are very simple to open.
Contact an Auto Locksmith
If you're having trouble with your car key button, it may be time to call in the experts. Auto locksmiths specialise in the repair of electronic car keys and their associated locks. They have the expertise and tools required to recognize and fix a range of issues with your key fob including replacing batteries and changing the programming. They are equipped with the knowledge and skills to handle more complicated tasks, such as fixing a damaged key or cutting an alternative key.
The switch in the car key button is typically worn out. The use of the switch and exposure to elements are the main causes. The switch is made from a hard plastic and has multiple switches on its surface. Each switch is able to activate the function for which you are using the key. As the switch ages, it becomes more difficult to turn on these functions. This means that you'll need to push down harder on the switch in order to make it work. This could cause more damage to the switch, decreasing its longevity.
Replace the battery in your key fob. Many models of car use lithium-ion button or coin batteries that 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 may be that your key fob's contacts have worn out. The contacts are made of rubber, and covered with an electrical conducting film that can wear out. They are exposed to elements as you use the key, so they're constantly being exposed to dirt and moisture. Eventually, they will wear down to the point where they are no longer in contact with the circuit board or the sensor beneath the keypad.
The dealership can replace the key fob, however it can be expensive and take a long time. The other alternative is to contact an auto locksmith in your area who can fix your key fob and help you save money.