Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Key fobs may experience issues over time, such as an inability to function. Some issues may need professional attention, however many can be fixed at home.
The first step is generally to change the battery. The majority of fobs have batteries with a flat design that are readily available at auto parts stores.
Dead Battery
If a key fob battery dies, it can be a huge inconvenience especially if you're far from home. However, there are options to get back on the road when your car's keyless entry isn't working.
The first thing to test is if the buttons on the key fob are working. If they don't then the issue could be with the locks on your car.
If the keys won't unlock, look for a mechanical key slot hidden in your door handle trim or somewhere else on the car (consult your owner's manual). Insert the mechanical key and try again. If this fails to unlock the door, certain cars have an app that allows you to unlock it remotely. For instance the FordPass Connect app, the myChevrolet mobile app, and myMazda app permit owners to open the doors using smartphones. However, these apps require an annual cost.
You should also check whether your key fob won't drain the batteries of your car by resting on them. A dead fob can drain your battery fast particularly if it's used to control the TV or phone while you're watching.
Holding the key fob right up to your car's start button could cause an ignition key fob with an empty battery. This quick fix can save you from having to visit your dealer or certain Interstate All Battery Centers.
If your key fob won't work try testing it in a car with a push-button starter. 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 an extra key fob in your bag or purse.
Damaged Buttons
It's possible that the key fob has a damaged button. Your key fob likely contains circuit boards with "contact pads" for each button. These tiny pads are coated with a conductor of electricity that wears down over time. The wear may make your fob respond slower or not at all.
The good news is that the pad inside the key fob of a car is simple to replace and it can be done by using an easy flathead screwdriver. If the case is damaged or badly damaged it may be difficult to open. You'll need to take it to an auto repair shop to get the fob repaired.
It's not common for a key fob be thrown around, trampled upon or even exposed to water. These incidents can cause physical damage, including bending and snapping the keys.
This could also affect the internals of your fob, which could lead to malfunction. This is why it's always a good idea to carry an extra key fob in your pocket or wallet in the event that you break the one you already have.
Make sure the battery is charged first if your key fob buttons are not responding as they should. Remember that key fobs don't come with a particular type of electronic device - most of them run on the same two-dollar batteries that are used in watches and hearing aids that are readily available at drug stores, hardware stores, and on the internet.
If the battery is good the buttons could be dirty or worn out. You can easily clean them using a damp cloth. If they're still not responding, you can try a different type of key fob to determine if the problem is with yours or with a particular type of car key fob. If the other key fob functions it is possible that yours needs to be reset or replaced.
Reprogramming
The hidden world of car keys fobs is much more complex than many myths suggest. Basic fobs function using radio frequency signals that are specific to each vehicle. The fobs have to be programmed to unlock and begin the vehicle. Reprogramming a key fob is not as simple as pressing several keys. It is usually handled by the dealer.
Check the owner's manual for specific instructions. Some manufacturers, such as Mercedes utilize proprietary technology that guarantees only the dealership can create an entirely new fob and then sync it to your vehicle. Some independent shops might offer this service, so check reviews and prices before choosing a shop.
Some car models will erase other fobs once they've been changed, so you'll have to have any additional fobs professionally programmed as well. remote car key repair near me can be costly especially if you're only down to just one working fob. Even in the event that the mechanical key will not work to start your vehicle, it's a good idea to have a backup 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'll likely be disappointed. A lot of these guides were written by people with no experience and are based on unsubstantiated statements. Some even claim that you can program your own car key fob with just a few clicks, which can be very misleading.
The majority of key fobs are secured by a plastic clip that's easy to loosen, however, the battery is within the circuit board, so you'll need to carefully pull it out with a tool. You should be able find the button battery. It's typically a small battery for a watch, which you can purchase at most pharmacies or at home improvement stores. Replacing the battery is usually a straightforward procedure, and it's always worth trying first before replacing the entire device.
Replacement
If the car key fob is damaged or has stopped working, it's important to know there are several ways to address the issue. A quick fix can be as simple as replacing the battery or programming the key fob but a more in-depth repair might be required. It can also be helpful to have a spare key fob in the event that one is lost or stolen.
Modern key fobs are more expensive and harder to replace since they have an actual key along with electronic. Certain "smart" fobs include a remote starter built-in. Therefore, it's important to understand that it could take up to an hour to get a replacement key fob cut and programmed for your vehicle.
Fobs communicate with the car's receiver using a tiny radio transmitter that is mounted on a circuitboard. By pressing a button the transmitter sends an RF signal specific to the car receiver. The receiver recognizes and compares the signal with preprogrammed codes. This lets the driver unlock the vehicle and begin it from a distance without putting the key in the ignition or turning a lock.
If your fob's buttons aren't responding or working intermittently, they may be damaged by water. You may be able to repair the fob by disassembling it and inspecting for any broken or non-responsive buttons. If this doesn't solve the issue, you can try reprogramming the fob or buying an entirely new one.
Before buying a replacement key fob online, you should seek out a professional locksmith or your local dealer to confirm that it is compatible with the security system of your vehicle. There are a variety of aftermarket key fobs available cheaper, but it's important to look up the brands and read reviews before trying to program them. While some fobs can be replaced by a reputable locksmith, others require special equipment for programming that can only be used by a professional auto dealer or auto technician.