Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Over time, key fobs can have issues, such as a loss of functionality. Certain issues might require professional attention, but most are fixable at home.
Change the battery is often the first step. The majority of fobs have flat watches that are easy to find at auto parts stores.
Dead Battery
If the battery for a key fob is dead, it could be a major hassle especially if you're far from home. However, there are options to get back on the road if your car's keyless entry isn't working.
One of the first things you should check is whether the buttons on your key fob function. If they do, the issue could be in the locks of your car instead of the fob.
If your keys will not unlock, there may be a mechanical slot in the trim around your door handles or in other places in your car (consult the owner's manual). Insert the mechanical key, and try again. If this doesn't unlock the door, some vehicles have an app that allows you to unlock it remotely. FordPass Connect MyChevrolet Mobile Application and myMazda apps, for example allow owners to open their doors using their smartphones. However, these apps have a monthly cost.
Also, make sure that your key fob does not drain the batteries of your car by resting on them. A dead fob will drain your battery quickly especially if it's used to control your phone or TV while you are watching.
The key fob should be held right up to your car's start button can sometimes start a key fob with an empty battery. It's a simple fix that can save you a trip to the dealer or even select Interstate All Battery Center locations.
If your key fob won't work, you can test it in a car 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 purse or backpack.
Damaged Buttons
It is possible that your key fob is damaged and has a button. The key fob may contain circuit boards with "contact pads" for each button, and these little pads are coated with an electricity conducting film that wears down over time. This wear could cause your fob to react less quickly, or not respond at all.
The contact pad on the car keyfob is easily replaced using a flathead screwdriver. If the key fob is badly damaged or smashed in any way, it could be more difficult to open up the case, and you'll need to take the fob to an auto repair shop for repairs.
It's not unusual for a key fob to be dropped on hard surfaces, trodden on or exposed to water. All of these can cause physical damage to keys, including bending or snapping them.
This could also cause internal damage to the fob and cause a malfunction. It is a good idea, that's why you should always carry an additional fob in your purse or pocket in the event that the one you're using breaks.
Check the battery first If your key fob's buttons are not responding as they should. Key fobs don't require any special electronic device. They utilize the same battery for two dollars that is used in hearing aids and watches. These batteries are available in drug, hardware and online stores.
If the battery is good it is possible that the buttons are dirty or worn out. You can easily clean them with a damp cloth. If the buttons still don't work, try another car key fob. This will help you determine if the problem is yours or a specific model. If the other key fob is working, then yours may need to be reprogrammed or replaced.
Reprogramming
The hidden world of car key fobs is much more complex than some myths suggest. Basic fobs operate with radio frequency signals that are unique to each car. The fobs must be properly programmed to unlock and start the vehicle. Unfortunately, reprogramming a fob isn't as simple as pressing a few buttons and with only a few exceptions it has to be done by a dealer.
Check the owner's manual for more detailed instructions. Certain manufacturers, such as Mercedes have proprietary technology that only dealers are capable of creating a new key fob, and then sync it to your vehicle. However car key repair provide this service as well so make sure to review reviews and prices prior to selecting the shop.
Some car models will erase other fobs when they're changed. This means that you'll have to have any extra fobs programmed by an expert. This can be expensive particularly if your fob isn't working anymore. It is always advisable to have at least one backup mechanical key that you can use to open the trunk and doors even if it doesn't start the car.
Be prepared for a gruelling experience if you decide to reprogram your fob by yourself. There are many guides on the internet that promise success however, you're likely to be disappointed. A majority of these guides were written by people with no experience and are based on unsubstantiated statements. car key repair of them even state that you can program your car key fob with just a few clicks, which is extremely confusing.
The battery is typically held in place by clips made of plastic, which can be easily removed. However, the circuit board contains the battery, so you'll need to pry the battery out using an instrument. You should be able to locate the button cell battery. This is usually tiny batteries for a watch that you can purchase at most pharmacies or at home improvement stores. It's usually easy to replace the battery. Before replacing the entire device, you should try it first.
Replacement
If the car key fob has been damaged or fails to function, it's important to know that there are several options to address the issue. It may be possible to repair the issue quickly by replacing the battery or reprogramming the key fob. However an extensive repair might be required. It is also helpful to keep a spare fob in case one gets lost or stolen.
Modern key fobs are more expensive and harder to replace since they have the physical key as well as the electronic. Some "smart fobs" include a remote starter. Therefore, it's important to understand that it could take up to an hour to get an alternative key fob cut and programmed to your vehicle.
Fobs communicate with the car's receiver by using a small radio transmitter that is mounted on circuit boards. By pressing a button the transmitter emits an RF signal that is unique to the car's receiver. The receiver is able to recognize and compare the signal to preprogrammed codes. This allows the driver to start the vehicle from a distance without having to put the key in the ignition.
If your key fob buttons are not responding or working intermittently, they could 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 does not solve the issue, try reprogramming or buying an entirely new fob.
It is best to check with a local auto dealer or a locksmith prior purchasing a replacement keyfob to ensure it is compatible with the security system of your vehicle. There are many aftermarket fobs cheaper, but it's important to research the brands and read reviews before attempting to program them. Certain fobs can be programmed by an accredited locksmith however, other models require programming equipment that only a technician in the automotive industry or dealer can use.