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, however many can be fixed at home.
Change the battery is often the first step. 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 a key fob battery dies, it can be a major hassle particularly if you're away from home. There are methods to get your vehicle back on the road in case your keyless entry system has stopped working.
One of the first things to be sure of is to determine if the key fob's buttons still work. If they do, then the issue could be with your car's locks instead of the fob.
If the keys aren't unlocking you need to look for a mechanical key slot located in the door handle trim or in another location on the car (consult your owner's manual). Insert the mechanical key and try again. If this doesn't unlock the door, certain cars come with an application that lets you unlock the door remotely. FordPass Connect, myChevrolet Mobile App and myMazda apps, for instance allow owners to open their doors using their smartphones. These apps are charged a monthly fee for subscription.
You should also make sure that your key fob isn't draining your car's battery by resting on it. A dead fob can quickly drain your battery, especially when you use its remote features while watching TV or speaking on the phone.
A key fob that's low on battery can be activated by bringing it up to the start button. It's a quick fix that can save you a trip to the dealership or select Interstate All Battery Center locations.
If your key fob does not work try testing it in a vehicle with an electronic starter button. If it fails the battery of the fob needs replacement. It's a good idea keep an extra key fob in your backpack or purse.
Damaged Buttons
It is possible that your key fob is damaged and has a button. Your key fob contains an electronic circuit that has "contact pads" which are covered by an electrically conductor film. The film wears off over time. This wear can cause your fob to react more slowly, or even not at all.
The good news is that the pad in the car key fob can be replaced easily, and it can be done by using an easy flathead screwdriver. If, however, the key fob is severely smashed or harmed in any way, it may be more difficult to remove the case, and you'll have to take the fob to an auto repair shop for repairs.
It's not unusual for a key fob to be dropped, trampled on, or exposed water. These events can cause physical damage to keys, including bending or snapping them.
This could also cause internal damage to the fob, which could result in an issue. This is why it's always an ideal idea to keep a spare key fob inside your purse or pocket in the event that you break the one you already have.
If your key fob's buttons aren't working to the extent they should, first check to make sure the battery is in good condition. Be aware that key fobs aren't a special kind of electronic device; they're typically powered by the same two-dollar batteries used in hearing aids and watches that are readily available at hardware stores, drug stores, and even online.
If the battery is in good condition it is possible that the buttons are dirty or worn out. You can easily clean them using a damp cloth. If the buttons still don't work, you can test another car key fob. This will help you determine if the problem is yours or a particular model. If the other fob is working then it's likely your key fob needs to be reprogrammed or possibly replaced entirely.
Reprogramming
The hidden world of car key fobs is much more complicated than the myths suggest. Basic fobs operate on radio frequency signals unique to each car. The fobs must be properly programmed to unlock and begin the vehicle. Unfortunately the process of reprogramming a fob isn't as simple as pressing a few buttons and with a few exceptions, it has to be done by a dealer.
Check the owner's manual for specific instructions. Certain manufacturers, like Mercedes, use proprietary technology that makes sure only the dealership can create the new fob and sync it with your vehicle. However some independent shops provide this service too and you should review reviews and prices prior to selecting a shop.
Some car models will erase other fobs once they've been programmed, meaning you'll have to have any additional fobs professionally programmed as well. This can be expensive particularly if your fob is no longer working. Even if the mechanical key won't work to start your vehicle, it's a great idea to have a backup key that can open the doors and trunk.
Be prepared for a frustrating experience if you decide to reprogram your fob yourself. There are countless guides on the internet that promise success but you're likely to be disappointed. A lot of these guides were written by people who have no experience and are based on unsubstantiated assertions. Some of these guides claim that you can easily program your car's key fob by yourself in just the click of a button. This is a false claim.
The majority of key fobs are held in place by a clip made of plastic that's easy to loosen, but the battery is inside the circuit board, so you'll have to carefully pry it out using a device. You should be able find the button battery. It's typically a small battery for a watch, which you can purchase at most home improvement or pharmacies. It's generally easy to replace the battery. Before replacing the entire device, you should try it first.
Replacement
If your car key fob has been damaged or isn't functioning it is important to know there are several options to remedy the problem. A quick fix can be as simple as replacing the battery or changing the program on the key fob, but a more in-depth repair may be required. A spare fob is helpful in the event that one is stolen or lost.
Modern key fobs are more expensive and more difficult to replace since they have an actual key and electronics. Some "smart fobs" even come with a remote starter. Therefore, it's important to be aware that it can take up to an hour for a replacement key fob cut and programmed to your vehicle.
Fobs use a small radio transmitter mounted on a circuit board to communicate with the car's receiver. When you press a button, the transmitter transmits an RF signal unique to the car's receiver. The receiver detects and compares the signal to preprogrammed codes. This lets the driver unlock the car and start it from a distance without putting the key in the ignition or turning the lock.
If the buttons on the fob you have purchased fail to respond or work sporadically, it can indicate that they have been damaged by water or other causes. You may be able to repair the fob by taking it apart and looking for any damaged or non-responsive buttons. If this doesn't resolve the issue, try reprogramming it or purchasing an entirely new fob.
It is recommended to consult an auto dealer in your area or a locksmith before purchasing a replacement keyfob online to ensure that it's compatible with the security system of your vehicle. You can find aftermarket fobs cheaper, but it's important to study the brands and read reviews before trying to program them. car key repair shop near me can be modified by a locksmith who is reputable, but other models require programming equipment that only a technician in the automotive industry or dealer can utilize.