Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Over time, key fobs could experience problems such as malfunction. Some issues may need professional attention, but many can be resolved at home.
The first step is generally to change the battery. Most fobs run on a flat watch-style batteries, which can be easily found in hardware or auto parts stores.
Dead Battery
When a key fob battery fails, it can be a major hassle especially if you're far from home. Fortunately, there are ways to get back on the road when your vehicle's keyless entry system isn't working.
The first thing you should check is to see if the buttons on the key fob still work. If they do, the issue may be with the car's locks instead of the fob.
If your keys won't unlock, there may be an electronic slot in the trim around your door handles or in other places on your vehicle (consult the owner's manual). Insert the mechanical key and try again. If this doesn't work certain cars come with an app that can unlock doors remotely. FordPass Connect MyChevrolet Mobile Application and myMazda apps, for example let owners unlock their doors using smartphones. These apps do charge a monthly subscription fee.
It is also important to ensure that your key fob isn't draining your car's battery by resting on it. A dead fob will drain your battery quickly, especially if it is used to control your phone or TV while you are watching.
A key fob that's low on battery may be activated by bringing it up to the start button. It's a quick fix that can save you going to the dealer or select Interstate All Battery Center locations.
You can also determine whether your key fob is actually dead by trying it in another vehicle with the push-button ignition. If it doesn't, it could be necessary to replace the battery in your fob. 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 the vehicle remotely, it's possible that one or more of its buttons have been damaged. Your key fob contains an electronic circuit that has "contact pads" that are covered with an electrically conductor film. This film wears off over time. This wear can make your fob respond slow or not respond at all.
The good news is that the contact pad in a car key fob is easy to replace, and can be done so with the help of a flathead screwdriver. If the case is damaged or badly smashed, it will be difficult to open. You'll need to take it to an auto shop to repair the fob.
It's not unusual for keys to be dropped on hard surfaces, tripped on, or exposed to water. These events can cause physical damage to keys, which could result in them breaking or snapping them.
It can also cause internal damage to the fob that could cause malfunction. This is why it's always a good idea to carry an extra key fob in your purse or pocket in case you break the one you already have.
Examine the battery first to determine to determine if the buttons on your key fob are not responding in the way they should. Keep in mind that key fobs don't come with a particular kind of electronic device - they're typically powered by the same batteries for two dollars that are used in watches and hearing aids that are readily available at drug stores, hardware stores, and even online.
If the battery is in good condition it is possible that the buttons are worn or dirty. You can easily clean them using a damp cloth. If they're still not responding, test a different key fob to see whether the problem is with yours, or with a particular type of car key fob. If the other key fob is working it is possible that yours needs to be reset or replaced.
Reprogramming
The secret world of fobs for car keys is more complex than the myths that surround it suggest. Basic fobs work with radio frequency signals that are specific to each vehicle. The fobs must be programmed correctly for them to be able to unlock and start the car. 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 more detailed instructions. Some manufacturers, such as Mercedes, use proprietary technology that ensures only the dealership can create an entirely new fob and then sync it to your vehicle. Some independent shops may offer this service, so check reviews and prices before choosing a shop.
Some car models will erase all other fobs once they're changed. This means you'll need to have additional fobs programmed by a professional. This is a costly proposition 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 option that can open the doors and trunk.
Be prepared for a frustrating experience if you decide to reprogram your fob yourself. There are numerous guides available online that promise success however, you're likely to be disappointed. Many of these guides were written by people who have no experience and are based on unsubstantiated claims. Some of them even claim that you can program your car key fob in only a few clicks, which is extremely confusing.
The battery is typically held in place with an elastic clip that can be removed easily. However the circuit board houses the battery, so you'll need to remove the battery using a tool. You should be able find the button cell battery. It's typically a small battery for watches that you can purchase at most pharmacies or at home improvement stores. car key repair company 's typically easy to replace the battery. Before replacing the whole unit, it's worth trying first.
Replacement
There are several ways to fix a damaged or damaged car key fob. It could be possible to repair the issue quickly by replacing the battery or reprogramming your key fob. However an extensive repair might be required. It's also beneficial to have a spare key fob in the event that one is 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 difficult to replace than traditional keys. Some "smart" fobs even include a remote starter built-in. As such, it's important to know that it could take up to an hour to have an alternative key fob cut and programmed to your vehicle.
Fobs utilize a small radio transmitter mounted on circuit boards to communicate with the car's receiver. By pressing a button, the transmitter transmits an RF signal that is unique to the car receiver. The receiver detects and compares the signal with preprogrammed codes. This lets the driver unlock the car and start it from a distance, without putting the key in the ignition or turning a lock.
If the buttons on your key fob aren't responding or working in a sporadic manner, they may be damaged by water. You may be able to repair the fob by taking it apart and looking for any damaged or unresponsive buttons. If this doesn't resolve the problem, try reprogramming it or purchasing an entirely new fob.
Before purchasing a replacement key fob online, seek out an expert locksmith or your local auto dealer to ensure that it's compatible with the security system of your vehicle. The fobs from the aftermarket can be less expensive but you should research brands and read reviews prior to attempting to program them yourself. Certain fobs can be modified by a locksmith who is reputable and other models require programming equipment that only a car technician or dealer can utilize.