Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Over time, key fobs could have issues, such as a losing functionality. Certain issues may require professional attention, but most can be resolved at home.
Changing the battery is often the first step. The majority of fobs have batteries with a flat design that are readily available at hardware stores or auto parts stores.
Dead Battery
If the battery for a key fob is dead, it could be a major inconvenience particularly if you're away from home. There are methods to get your car back on the road in case your keyless entry system has stopped working.
One of the first things to check is to determine if the key fob's buttons still work. If they don't, the problem could be with the locks on your car.
If the keys won't unlock you need to look for a key slot with a mechanical lock concealed in your door handle trim or on another part of the car (consult the owner's manual). Insert the mechanical key and try again. If this doesn't work, some cars have an app that can open doors remotely. For instance, the FordPass Connect app, myChevrolet mobile app, and myMazda app permit owners to open their doors using their smartphones. These apps do charge a monthly fee for subscription.
You should also check whether your key fob won't drain your car's batteries by resting on them. A dead key fob will quickly drain your battery, especially when you utilize its remote features while watching TV or talking on the phone.
A key fob that's just low on battery can sometimes be started by holding it right up to the start button. It's a simple fix that can save you going to the dealer or select Interstate All Battery Center locations.
If your key fob won't work, you can test it in a car with an ignition button. If it doesn't work, it could be necessary to replace the battery on your fob. This is why it's a good idea to keep a spare key fob inside the bag or purse.
Damaged Buttons
If your key fob isn't able to unlock doors or start the car remotely, it's possible that one or more of its buttons are damaged. Your key fob contains a circuit with "contact pads" which are covered by an electrically conductory film. This film wears off over time. This wear could cause your device to respond slower or not at all.
The contact pad on a car keyfob can be easily replaced using an flathead screwdriver. If the case is damaged or badly smashed, it will be difficult to open. You'll have to take it to an auto repair shop to repair the fob.
It's not unusual for a key fob to be thrown around, trampled upon, or exposed water. All of these events can cause physical damage to keys, which could result in them breaking or snapping them.
This could also affect the internals of the fob and could cause an issue. It's a good idea, that's why you should always carry an extra fob in your wallet or pocket in the event that the one you're currently using fails.
If your key fob's buttons aren't working in the way they should, first make sure the battery is in good working condition. Key fobs don't need any special electronic device. They are powered by the same battery for two dollars that is used in hearing aids and watches. The batteries are available at drug, hardware, and online stores.
If the battery is in good condition, the buttons may be dirty or worn out. You can easily clean them with a damp cloth. If they're still not responding, you can try a different key fob to determine if the problem is with yours, or with a specific type of car key fob. If the other fob works it's likely that your key fob needs to be reprogrammed, or perhaps replaced entirely.
Reprogramming
The secret world of fobs for car keys is more complex than many myths suggest. Basic fobs work using radio frequency signals that are specific to each car. The fobs must be programmed correctly in order for them to open and start the car. Reprogramming a key fob not as simple as pressing a few keys. It's usually handled by the dealer.
Check the owner's manual for more detailed instructions. Some manufacturers, such as Mercedes have their own proprietary technology that guarantees only the dealership can create a new fob and re-sync it with your vehicle. However some independent shops provide this service as well, so be sure to review reviews and prices prior to choosing the right shop.
Certain car models wipe out all other fobs once they've been reprogrammed, which means you'll need to get any additional fobs programmed professionally. This is an expensive proposition, especially if you're just one functional fob. Even when the mechanical key doesn't start the vehicle, it's a good idea to have a backup option that can open the trunk and doors.
If you attempt to reprogram your fob yourself, be prepared for a frustrating journey. There are many guides online that promise success but you're likely to be disappointed. keys repair of these guides were written by people who have no experience and are based on unsubstantiated statements. Some of these guides claim that you can easily program your car key fob with just a few clicks. This is false.
The battery is usually secured with a plastic clip, which can be removed easily. However, the circuit board contains the battery, so you will need to carefully remove the battery using a tool. You should be able to locate the button cell battery. It's usually an insignificant battery for a watch, which can be purchased at any pharmacies or home improvement stores. Removing the battery is typically an easy process, but it's always worthwhile to try first before replacing the entire device.
Replacement
If a car key fob is damaged or has stopped working, it's important to know there are several options to address the issue. A quick fix can be as simple as replacing the battery or reprogramming the key fob, however a more extensive repair may be required. It's also beneficial to keep a spare fob in the event that one is lost or stolen.
Modern key fobs are more expensive and harder to replace due to the fact that they have an actual key and electronic. Certain "smart" fobs even have a built-in remote starter. Therefore, it's important to be aware that it can take up to an hour to have an alternative key fob cut and programmed for your vehicle.
Fobs communicate with the car's receiver using a small radio transmitter built into circuit boards. By pressing a button the transmitter transmits an RF signal specific to the car's receiver. The receiver receives the signal and validates it against preprogrammed codes. This allows a driver to start the vehicle from a distance without the need to insert the key in the ignition.
If the buttons on your key fob fail to respond or work sporadically it could mean that they've been damaged by water or other factors. You could be able to repair the fob by removing it and inspecting for any broken or non-responsive buttons. If this doesn't fix the problem, you can try reprogramming the fob, or getting an entirely new one.
It is recommended to consult a local auto dealer or a locksmith before purchasing a replacement keyfob online to make sure it is compatible with the security system of your vehicle. Fobs purchased from a third party can be cheaper, but you should research brands and read reviews prior to attempting to program them yourself. Some fobs can be changed by an accredited locksmith and other models require programming equipment that only a car technician or dealer is able to utilize.