10 Things People Hate About Car Key Fob Repair
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, including an inability to function. Certain issues may require professional attention, but many can be fixed at home.
The first step is generally to change the battery. Most fobs utilize flat watches that are readily available at auto parts stores.
Dead Battery
It can be an incredibly inconvenience when the battery of a key fob dies. This is particularly true when you are far from home. There are ways to get back on the road even when your car's keyless entry isn't working.
The first thing to check is to see if the buttons on the fob are still working. If they do, the issue may be with the car's locks instead of the fob.
If your keys don't work you need to look for a key slot with a mechanical lock hidden in your door handle trim or somewhere else on the vehicle (consult the owner's manual). Insert the mechanical key and try again. If this doesn't work, some cars have an app that can unlock the doors remotely. For instance the FordPass Connect app, the myChevrolet mobile app and myMazda app permit owners to open their doors using their smartphones. However, these apps require a monthly cost.
You should also make sure that your key fob isn't draining the car's battery by being plugged into it. A dead key fob can drain your battery, especially if you use its remote feature while watching TV or talking on the phone.
A key fob that's low on battery can be activated by holding it up to the start button. This quick fix can save you from a trip to your dealer or to certain Interstate All Battery Centers.
key repair can also find out whether your key fob is actually dead by testing it in another vehicle that has the push-button ignition. If it's not working it's likely that the battery needs replacement. This is why it's a good idea keep an extra key fob in the bag or purse.
Damaged Buttons
It's possible that your key fob has a damaged button. Your key fob is likely to have an electronic circuit board that has "contact pads" for each button. These little pads are coated with an electrically conducting film which wears down over time. This wear could 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 can be replaced easily, and is done using a simple flathead screwdriver. However, if the key fob is severely damaged or broken in any way, it may be more difficult to remove the case, and you'll be required to take the fob into an auto shop for repair.
It's not common for a key fob be thrown around, trampled upon or even exposed to water. All of these can cause physical damage to keys, which could result in them breaking or snapping them.
This could also affect the internals of the fob, which could lead to an issue. It is a good idea, that's why you should always carry a spare fob in your wallet or in your pocket in case the one you're currently using is damaged.
If your key fob's buttons aren't responding as they should, first make sure the battery is in good condition. Keep in mind that key fobs don't come with a particular kind of electronic device - most of them run on 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 good, the buttons may be worn or dirty. You can easily clean them with a damp cloth. If they're still not responding, try a different key fob to see whether the problem is with yours or with a specific type of car key fob. If the other key fob functions, then yours may need to be reprogrammed or replaced.
Reprogramming
The hidden world of car key fobs is more complex than some myths suggest. The basic fobs operate using radio frequency signals that are assigned to specific cars. The fobs have to be properly programmed in order to be able to be able to unlock and start the vehicle. Reprogramming a key fob is not as easy as pressing a few keys. It's usually done by the dealer.
Consult your owner's guide for specific instructions. Some manufacturers, like Mercedes utilize proprietary technology that only dealerships are capable of creating a new key fob, and then sync it to your vehicle. Some independent shops may offer this service, so check reviews and prices before selecting a shop.
Some car models will erase all other fobs once they are programmed again. This means that you'll need to have any extra fobs programmed by a professional. This is a costly proposition, especially if you're down to just one working fob. Even when the mechanical key doesn't work to start your car, it's a good idea to have a backup that can open the trunk and doors.
Be prepared for a gruelling experience if you decide to reprogram your fob by yourself. There are countless guides online that promise success but you're likely to be disappointed. Many of these guides are written by people with no experience in this area and often are founded on unsubstantiated claims. 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 false.
The battery is typically held in place with an elastic clip that is easily removed. However, the circuit board contains the battery, and you will need to carefully pry the battery out using the aid of a tool. You should be able to find the button battery. It's usually an insignificant battery for watches that can be purchased at any pharmacies or home improvement stores. Removing the battery is typically a straightforward procedure, and it's always worth trying first before replacing the entire unit.
Replacement
There are several methods to fix a broken or non-functioning car key fob. An easy fix could be as simple as replacing the battery or programming the key fob however a more extensive repair may be required. It is also helpful to have a spare key fob in the event that one is lost or stolen.
Modern key fobs are more expensive and difficult to replace because they contain the physical key and electronic. Some "smart fobs" even come with remote starters. It's important to know that it could take up to an hour to cut and program the replacement fob to your vehicle.
Fobs communicate with the car receiver by using a small radio transmitter that is mounted on a circuitboard. Pressing the button triggers the transmitter, which transmits a unique RF signal to the car's receiver. The receiver receives the signal and verifies it against the preprogrammed codes. This allows a driver to start the vehicle from a distance without the need to insert the key in the ignition.
If your key fob buttons aren't working or responding in a sporadic manner, they may have been damaged by water. You could be able to fix the fob by removing it and looking for any damaged or non-responsive buttons. If this doesn't fix the problem, you can try reprogramming the fob, or buying another one.
It is best to check with a local auto dealer or a locksmith prior to buying a replacement keyfob on the internet to ensure it is compatible with the security system of your vehicle. The fobs from the aftermarket can be less expensive, but you should research reviews and brands before trying to program them yourself. While certain fobs can be repaired by a reputable locksmith, others require specialized equipment to program them that can only be used by a vehicle dealer or auto technician.