Car Remote Key Repair
Modern car remote keys are very useful and convenient, but they can be a hassle when they stop functioning. Thankfully, there are some quick fixes that can usually bring them back up and running.
First, try replacing the battery. The majority of fobs are powered with lithium coin cells. They are affordable and easy to locate.
Broken Electronics
The remote car key you have an electronic circuit board inside that transmits and interprets signals to your car. If this board is damaged the key fob will not function properly. Contrary to battery failure, which is generally very simple for most drivers to fix at home, damage to the receiver or transmitter of the remote key will require a professional locksmith or your dealer in the car.
The majority of remotes that use key fobs have lithium ion coin batteries, which have a reasonably long time-to-life, but won't last for long. If you've been using the batteries for a long period of time, changing them will probably solve the issue. If you've been using your remote fob for a long time and you're surprised to discover that the buttons don't respond even though the batteries are fresh. The buttons on your keyfob are subjected to a lot of bouncing and can break or become unresponsive with time. In this case, removing and cleaning the buttons is usually enough to solve the issue.
If the buttons on your remote not working, you might need to reprogram it to work with the system in your vehicle. This is typically accomplished by turning the ignition key several times while the doors are closed. The procedure will differ based on the car's model and make however, you can find instructions online or contact a professional for assistance.
If the key fob has a plastic exterior it is possible to take off the cover and then pry it off. But be careful not to scratch the buttons or other internal components. This is best done with a pair needle-nosed pliers that have longer tips. They are able to easily grasp small parts. Lubricating pliers with putty super glue or melted tallow will help them grasp delicate components. This is something an automotive locksmith could perform, since the wrong methods could cause damage to the electronic components. The plastic can be broken when you attempt to take the fob apart with force. It's also possible that any buttons connected to it could snap off accidentally if you forcefully pry it apart.
Faulty Transponder Chip
If you've managed to start your car with the remote key, but you're not able to do it the next time, it could indicate that there is a problem with your transponder chip. This is because your key relies on this small electronic component to communicate with the immobilizer system. It sends a signal to the system that your key is valid and that you are able to start the engine. If the chip fails to correctly transmit this message, the immobilizer disables your vehicle.
This problem is more frequent in older vehicles, but it can also be found in newer vehicles. This is because the transponder chip may wear out over time. This component can be repaired by a car locksmith however it is costly.
In some cases your chip could be dead. In this case the dealer will need to replace it. This is the most costly but necessary option to get your car back on the road.
Another possibility is that the key's chip is damaged. web page means it can not communicate with the immobilizer. This could happen when the battery is changed or if the key is physically damaged. A Mesa locksmith for cars can repair this, however it might be necessary to go to the dealership for your key reprogrammed.
If you're having issues with your remote key, you should first try a backup. If this does not solve the issue, you can disassemble your key fob to conduct a visual inspection. Make sure that no button appears to be loose or damaged. These parts are often used and can loosen over time. It's best to have them put in place by an expert in case they're loose. In most instances, this will return your key fob to full functionality. This is particularly true for keys that are accidentally inserted into the wrong ignition lock cylinder.
Damaged Battery
If you've tried a brand new battery, but the key fob still won't function, there could be other issues. Fobs could be damaged by water or dropped or stepped on. Internal connections, including those that connect to the battery terminals in the remote, may also be damaged or disconnected. It is possible to reprogram the key fob, and this is something you can tackle yourself if you have a spare fob of the same model and brand.
Modern key fobs need to be programmed to match the vehicle and ensure that only you can unlock the car's doors. This is a vital step to secure your vehicle and prevent other people from using your key fob to gain access to your vehicle or cause electrical system problems. Certain engine error codes, or even normal wear and tear can corrupt the programming of your key fob. Professionals equipped with the right tools can reprogram your key fob correctly.
It's possible that the issue is in the buttons that are a much easier solution than replacing the entire key fob. Most key fobs feature rubberized buttons that are jostled around all the time, and could break or get loose. If you're able to determine that the buttons aren't damaged, you could try adjusting them manually.
It's best to open up the key fob and look at it, but be cautious. Certain fobs do not have an easy release mechanism, so you may need a screwdriver or other tool to break them. Some are sealed and cannot be opened without specialized tools, so you'll likely need to bring it to a dealer to have it professionally opened. You can use a spare keyfob that is the same model and make to access the programming mode of your vehicle. Depending on your car this could mean closing and locking the doors, turning the lights and electronics on and off, and pressing a specific set of buttons in a certain sequence.
Failing Buttons
Mechanical damage could be to blame if the buttons on your key fob aren't working or require you to press them hard. The functionality of the key fob could be affected by dropping it on concrete or accidentally hitting an item by using a sharp object. You'll need take apart the key fob, then look over it to determine if there are any buttons that look damaged. A locksmith can fix it for you if that's the case.
The accumulation of crud or dirt can cause buttons to fail. You should clean your key fob with the help of a cotton swab which has been submerged in alcohol. You may have to scrub the surface of the keys. You should also determine if the problem is related to your car lock or the key fob. If you don't have an extra key fob to test, you might consider trying the keys on another vehicle to see if they work similarly.
car keys repair of the battery will also determine if you should change the programming of the key fob. If your keyfob does not function after replacing the batteries the terminal contacts of the battery may be damaged. Pressing the buttons on your key fob repeatedly while you're out of range or disconnecting your car battery can also deprogram the electronic key fob.
If the key fob is not working after replacing the battery, get it reprogrammed with your vehicle. This will depend on the specific model of vehicle however, generally you'll need to manually lock and unlock the doors of your car by inserting the key fob into the ignition, rotate it to the accessory position, and then push the button on the remote. If this is successful, the exterior and/or interior lights will flash. Then, you can test your key fob to verify that it is successfully programmed with your vehicle. In rare instances, a key fob can not function if there is an issue with the door locks themselves.