Car Remote Key Repair
Modern car remote keys are useful and convenient, but they can be a hassle when they stop working. Fortunately, there are simple fixes that are able to bring them back up and running.
The first step is to replace the battery. Most fobs are equipped with lithium coin cells, which are affordable and easily accessible.
Broken Electronics
Your remote car key has an internal electronic circuit board that transmits and interprets signals to your car. The key fob will stop working when the board is damaged. Damage to the transmitter or receiver will require an auto-locksmith professional or your dealer in your car.
The majority of remote key fobs powered by a lithium-ion coin battery, which has an extremely long shelf life. However, they will not last for long. The change of the batteries is likely to solve the issue, particularly when they've been in use for a long time. If you've been using your remote fob for a while, you might be surprised to find that the buttons don't respond at all, even when the batteries are in good condition. Because the buttons on your key fob undergo frequent jolts and can break or become inactive over time. If this happens, removing the buttons and cleaning them prior to placing them back in place will usually resolve your issue.
If the buttons on your remote don't respond, you may have to change the programming to match your car's system. This is typically done by turning the ignition key several times while the doors are shut. The process will vary depending on the make and model however, you can find instructions online or ask an expert for assistance.
If the key fob is made of an exterior made of plastic, it's possible to remove the cover and pry it apart. But be careful not to damage buttons or other internal components. The best tool to accomplish this is a pair of needle-nose pliers with longer tips, which will more easily grasp small pieces. Lubricating pliers using putty, super glue or melted tallow can aid in grabbing delicate components. It's recommended to hire an automotive locksmith do this, since improper techniques could cause damage to the electronic components within. The plastic could be damaged in the event that you forcefully pry apart the fob. It's also possible the buttons attached to it will be ripped off accidentally if forcefully pull it apart.
Faulty Transponder Chip
If you've been able start your car with the remote key, but not the next time, it could indicate that there is a problem with your transponder chip. This is because the key relies upon the small electronic component in order to communicate with the immobilizer system. It transmits a signal to the system that your key is legitimate and you are capable of starting the engine. If the chip does not correctly transmit this message, the immobilizer disables your vehicle.
This issue is more prevalent in older cars, however it is also a problem in newer vehicles. More Signup bonuses is due to the transponder chip can wear out over time. This component can be repaired by a car locksmith, but it is expensive.
In some cases the chip inside your key may be completely dead. In this instance, the dealer will have to replace it. This is the most costly but necessary option to get your car back on the road.
Another possibility is that the chip inside your key has become corrupted and it is unable to is able to communicate with the immobilizer system. This can happen if the battery is changed or if the key has been physically damaged. A Mesa car locksmith can sometimes repair this, however it is possible to go to the dealership if you need to get your key programmed again.
If you're having issues with your remote key you must first try a backup. If this doesn't solve the problem, you should disassemble your key fob and conduct an inspection. Make sure that no buttons are loose or damaged. These parts get lots of use and may be jostled loose over time. If they're loose, it's best to get them reattached by an experienced professional. In most instances, this will return your key fob's functionality. This is especially the case for keys that have been accidentally inserted into the wrong ignition lock cylinder.
Damaged Battery
If you've tried a brand new battery, but the key fob doesn't function, there could be other issues. Fobs may be damaged by dropping them or stepping over them, and internal connections, like the ones that connect the battery terminals within the remote, could be damaged or broken. It's possible to reprogram the key fob, and this may be something you can tackle by yourself if have a spare fob from the same model and make.
Modern key fobs should be programmed to work with your vehicle and ensure that only you are able to unlock the car doors. This is a vital step to protect your vehicle and prevent other people from using your key fob to gain access to your car or cause electrical system issues. Some engine error codes, or even normal wear and tear could cause a problem with the programming of your key fob. It's important to have your key fob reset correctly by a professional who has the appropriate equipment.
It's possible that the issue could be with the buttons themselves which could be a more straightforward fix than replacing the entire key fob. Key fobs usually come with rubberized buttons that could be damaged or lose their elasticity over time. If you can see that the buttons aren't damaged you can try adjusting them manually.
It's best to open up the key fob and take a look at it, but be cautious. Some key fobs do not have a simple release mechanism. You may need a screwdriver or small tool to remove them. Some are sealed and can't be opened with special tools, so you'll likely have to bring it to a dealer to have it opened professionally. You can use a spare keyfob from the same model and brand to access the programming mode of your car. Depending on your car this could mean closing and locking the doors, turning lights and other electronics off and on, and pressing a specific set of buttons in a particular sequence.
Failing Buttons
If your key fob has buttons that do not work or need to be pressing very hard in order to function, it could be because of mechanical damage. The key fob's functionality can be damaged by dropping it onto concrete or accidentally hitting the button with a sharp object. If this is the case you'll need to take the key fob apart and examine it carefully to see whether any of the buttons appear be broken or out of place. A locksmith can repair it for you, if that's the case.
Failing buttons can also be due to dirt or debris that has accumulated between the buttons. You should clean your key fob using an swab of cotton that has been soaked in alcohol. You may need to clean the surface on the keys. You should also determine if the problem is with your car locks or the key fob. If you don't have a spare key, try the keys in another vehicle to determine if it works.
The condition of the battery will determine whether or not you should reprogram the key fob. If your key fob is unable to operate after you replace the batteries, it likely means that the battery terminal contacts are damaged. You can also deprogram your electric key fob by pressing the buttons too many times when you are out of range or disconnecting the battery in your car.
If the key fob still not functioning after replacing the battery, you should be able to reprogramme it with the car. This will depend on the type of vehicle, but generally, you'll have to manually lock and unlock the car's doors by inserting the key fob into the ignition, turn it to the accessory position and then press a button on the remote. If this works the exterior and/or interior lights should flash. You can then retest your key fob to verify that it is successfully programmed to the vehicle. In rare cases, the key fob may be inoperable due to problems with the door lock.