Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Over time, key fobs can be affected by issues such as loss of functionality. Certain issues might require professional attention, but most can be resolved at home.
The first step is typically to replace the battery. The majority of fobs are powered by flat watch-style battery, which are easily found at hardware stores or auto parts stores.
Dead Battery
If the battery for a key fob fails, it can be a huge inconvenience especially if you're far from home. There are ways to get back on the road even if your car's keyless entry isn't working.
The first thing to test is to see if the buttons on the key fob are still working. If they don't it could be a problem with the locks on your car.
If the keys aren't unlocking, look for a mechanical key slot located in your door handle trim or somewhere else on the car (consult the owner's manual). Insert the mechanical key, and try again. If this fails there are some cars that have an app that allows you to open doors remotely. FordPass Connect MyChevrolet Mobile Application and myMazda apps, for instance allow owners to open their doors using smartphones. These apps do charge monthly subscription fees.
It is also important to ensure that your key fob isn't draining your car's battery by sitting on it. A dead fob will drain your battery fast particularly if it's used to control the TV or phone while you're watching.
A key fob that's low on battery can sometimes be activated by bringing it up to the start button. It's a simple solution that could save you going to the dealer or even select Interstate All Battery Center locations.
You can also determine if your key fob is actually dead by trying it in a different vehicle that has the push-button ignition. If it fails the battery of the fob requires replacement. This is why it's a good idea keep a spare key fob in a purse or backpack.
Damaged Buttons
If your key fob isn't able to unlock doors or start your car remotely, it's likely that one or more of its buttons is damaged. The key fob has a circuit with "contact pads" that are covered with an electrically conductor film. The film wears away over time. The wear may cause your device to respond slow or not respond at all.
The good news is that the pad inside the key fob of a car is easy to replace, and is done using an easy flathead screwdriver. If the case is damaged or badly smashed it will be difficult to open. It is necessary to take it to an auto repair shop to repair the fob.
It's not uncommon for a key fob be thrown around, trampled upon or exposed to water. All of these events can cause physical damage to keys, such as bending or snapping them.
This can also cause internal damage to the fob and cause an issue. This is why it's always an ideal idea to keep a spare key fob inside your wallet or pocket in case you break the one you have.
If the buttons on your key fob aren't responding in the way they should, you should first verify that the battery is in good condition. Key fobs don't need an electronic device. They use the same two-dollar battery that is used in hearing aids and watches. These batteries are available in drug, hardware and online stores.
If the battery is good, the buttons may be dirty or worn out. You can easily clean them using a damp cloth. If the buttons still don't work, you could try a different car key fob. This will help determine if the problem is yours or an specific model. If the other key fob is working, then yours might need to be reprogrammed or replaced.
Reprogramming
The secret world of car key fob repair keys fobs is much more complicated than most myths suggest. Basic fobs function on radio frequency signals specific to each car. The fobs must be properly programmed to unlock and start the vehicle. Reprogramming a key repair shop near me fob is not as easy as pressing several keys. It's usually done by the dealer.
The procedure of reprogramming a fob depends on the make and model year of your vehicle, so it's important to consult the owner's manual for step-bystep instructions. Some manufacturers, such as Mercedes have their own proprietary technology that guarantees only dealerships can design the new fob and sync it with your vehicle. Some independent shops may also offer this service, so be sure to read reviews and prices before selecting the right shop.
Some car models will wipe out all other fobs once they've been changed, so you'll need to get any additional fobs professionally programmed. This can be costly especially if the fob isn't working anymore. It's always recommended to have a spare mechanical key that you can use to open the trunk and doors even if it doesn't start the car.
If you do decide to attempt to reprogram your fob yourself, be prepared for a difficult journey. You'll be disappointed with the numerous guides on the internet that promise success. A lot of these guides were created by people who have no knowledge of this field and are often founded on unsubstantiated claims. Some of these guides claim that you can program your car's key fob with just only a few clicks. This is a false claim.
The majority of key fobs are held by a clip made of plastic which is easy to remove, however, the battery is located inside the circuit board, and you'll need to carefully pry it out using a device. You should be able to locate the button cell battery. It's typically tiny batteries for watches that can be purchased at any home improvement or pharmacies. The replacement of the battery is generally an easy process, but it's always a good idea to test this first before replacing the entire device.
Replacement
If a car key fob is damaged or isn't functioning it is important to know that there are several options to remedy the problem. It is possible to resolve the issue quickly by replacing the battery or programming your key fob. However, a more extensive repair might be required. It is also helpful to have a spare key fob in case one gets lost or stolen.
Most modern key fobs contain the physical key, in addition to the electronics they use, which makes them both more expensive and more complex to replace than traditional keys. Some "smart fobs" include remote starters. It's important to know that it can take up to an hour to cut and program the replacement fob to your vehicle.
Fobs communicate with the car's receiver by using a small radio transmitter on circuit boards. By pressing a button, the transmitter sends an RF signal unique to the car receiver. The receiver recognizes the signal and checks it against preprogrammed codes. This allows the driver to open the vehicle and start it from a distance, without putting the key in the ignition or turning a lock.
If your key fob buttons aren't working or responding intermittently, they may have been damaged by water. It is possible to repair the fob by taking it apart and examine for buttons that are not responsive or broken. If this doesn't solve the issue, you can try reprogramming the fob, or getting another one.
Before purchasing a replacement key repair car fob online, contact an expert locksmith or your local auto dealer to ensure that it's compatible with your vehicle's security systems. There are many aftermarket fobs cheaper, but it's important to look up the brands and read reviews before trying to program them. While some fobs are able to be replaced by a reputable locksmith others require special equipment to program them that can only be used by a car dealer or auto technician.