Car Remote Key Repair
Modern car remotes are convenient and useful but they can be frustrating when they stop working. There are some quick solutions to get them working again.
First, you should replace the battery. Most fobs are powered by lithium coin cells. They are affordable and readily available.
Broken Electronics
The electronic circuit board in your remote car key transmits and interprets signals for your car. If the circuit board is damaged, the key fob will not function properly. Damage to the receiver or transmitter will require a professional auto-locksmith or your car dealer.
The majority of remote key fobs utilize lithium ion coin batteries that have a long time-to-life, but won't last forever. If you've been using the batteries for a long period of time replacing them is likely to solve your issue. You may be surprised if you have been using your remote for a long time and the buttons don't respond at all. This is true even in the case of batteries that are new. The buttons on your keyfob will be subjected to a lot of bouncing and can break or become inactive with time. If this is the case taking them off, cleaning them, and replacing them can often solve the issue.
If the buttons on your remote still aren't responding, you may have to change the programming to match the system of your car. This is typically accomplished by turning the ignition key several times with the doors closed. The method will vary based on the model and make however, you should be able to find instructions online or ask a professional for help.
If the key fob has an exterior made of plastic it is possible to take off the cover and then pry it apart. Be careful not to scratch the buttons or other internal components. This can be done with needle-nosed pliers that have longer tips. They are able to grasp small parts. Lubricating the pliers with super glue, melted tallow, or putty will help them hold delicate parts. This is something that locksmiths in the automotive industry can perform, since the wrong techniques could damage the electronics. The plastic may break when you attempt to remove the fob with force. It's also possible that any buttons that are attached to it may be ripped off accidentally if forcefully pull it apart.
Faulty transponder chip
If you've managed to start your car with the remote key, but not the next time, it could indicate an issue with the transponder chip. This is because the key relies upon the small electronic component in order to communicate with the immobilizer system. It transmits the signal to the system to notify it that your key is valid, and you'll be able start your vehicle. If the chip does not correctly transmit this message the immobilizer disables your vehicle.
This problem is more frequent in older cars, however it can also occur in newer vehicles. The transponder chip wears away over time. It is possible to have a car locksmith replace this portion of your key, however this can be expensive.
In certain situations your chip could be dead. In this case the dealer will have to replace it. This is the most expensive but essential option to get your vehicle back on the road.
Another possibility is that the key's chip is damaged. This means that it can not communicate with the immobilizer. This could happen when the battery is changed or if your key is physically damaged. A Mesa locksmith for cars can repair this, however it is possible to visit the dealer if you need to get your key programmed again.
If you're experiencing issues with your remote key you must first attempt to backup your device. If this doesn't solve the problem, you should take apart your key fob and conduct a visual examination. Check that none of the button appears to be loose or damaged. These parts get lots of use and can easily be moved around over time. If they're loose it is best to get them reattached by a professional. In most cases, this will restore your key fob's functionality. This is especially true for keys that were accidentally placed in the wrong ignition lock.
Damaged Battery
If the key fob not working after you have tried a new one it could be due to other problems. Fobs can be damaged by dropping them, or stepping on them, and the internal connections, such as the ones that connect the battery terminals within the remote, may also be damaged or disconnected. It is possible to reprogramme your key fob if you don't have a replacement that is the same model and type.
Modern key fobs must be programmed to match the car to ensure that only you are able to unlock the car's doors. It's a crucial step to safeguard your car and keep others from using your key fob to gain access your car or cause problems with its electrical system. Certain engine error codes or wear and tear from normal wear and tear could corrupt the programming and prevent your key fob from functioning. It is essential to have your key fob reset correctly by a professional with the proper equipment.
It's possible that the issue is with the buttons themselves which could be a simpler solution than replacing the entire key fob. Key fobs often come with rubberized buttons that could be damaged or lose their elasticity over time. If you are able to see that the buttons aren't damaged you might try manually adjusting them.
It is recommended to open the key fob and look at it, but be aware. Some fobs don't have an easy release mechanism, so you may need a screwdriver or other tool to break them. Some are sealed and can't be opened without the use of specialized tools. You'll likely have to take it to a dealership to have it opened professionally. If you have an extra key fob for the same model and manufacturer you want to use it, try using it to enter the programming mode of your car. This could require you to shut and lock the doors, switch on and off the lights and electronics, and use a set of buttons in a specific order that is unique to your car.
Failing Buttons
Mechanical damage may be the reason if the buttons on your key fob do not function or require you to press them in a very forceful manner. The functionality of the key fob could be affected by a fall on concrete or accidentally hitting a button with a sharp item. If this is the case, you'll need to disassemble the key fob and carefully check if any of the buttons appear to be damaged or are out of the right place. A locksmith can fix it for you if this is the case.
Dirt or crud can also cause buttons to fail. It is important to clean your key fob regularly using a cotton swab soaked in alcohol. It is also possible to clean the surface of the keys themselves. repair car key should also try to determine if the issue is related to the locks on your vehicle or with the key fob itself. If you don't have a spare key, you can try the keys in another vehicle to see if the problem is solved.
The condition of the battery will also determine whether or not you should change the programming of the key fob. If your key fob fails to function after replacing the batteries, it probably 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 not in range or disconnecting your car's battery.
If the key fob still not functioning after replacing the battery, get it reprogrammed with your car. It will depend on the type of vehicle and the type of key fob you have, but generally, you'll need to manually lock and unlock the doors of your car, insert the key fob into the ignition, turn it to the accessory position, and then press the remote button. Usually the exterior and interior lights will flash if this has worked. Then, you can test your key fob to verify that it is successfully programmed with the vehicle. In rarer cases the key fob might stop working due to an issue with the door locks.