Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Over time, key fobs could be affected by issues such as losing functionality. While some issues might require professional attention, the majority can be resolved at home.
The first step is generally to change the battery. Most fobs are powered by flat watch-style batteries, which are easily found at auto parts or hardware stores.
Dead Battery
It can be a real issue when the battery of a key fob goes out. This is especially the case when you are far from home. There are methods to get your car back on the road in case you're keyless entry system isn't working.
The first thing to test is to see if the buttons on the fob still work. If they do, the problem may lie in the locks of your car instead of the fob.
If your keys will not unlock, there may be an electronic slot in the trim around your door handles or in other places on your car (consult the owner's manual). Insert the mechanical key and try again. If this fails certain cars come with an app that allows you to unlock doors remotely. FordPass Connect MyChevrolet Mobile Application and myMazda apps, for instance allow owners to open their doors using smartphones. However, these apps have a monthly cost.
It is also important to ensure 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 when you use its remote features while watching TV or talking on the phone.
Holding the key fob up to your car's start button could cause the key fob that has a low battery. This simple fix can save you from having to visit your dealer or certain Interstate All Battery Centers.
If your key fob doesn't work, you can test it in a vehicle that has an ignition button. If it doesn't work, you may need to replace the battery in your fob. It's a good idea to keep an extra key fob in your purse or backpack.
Damaged Buttons
It's possible that the key fob is damaged and has a button. The key fob has an electronic circuit that has "contact pads" which are covered by an electrically conductor film. The film wears off over time. This wear could cause your fob to react less quickly, or not to respond at all.
The pad that contacts a car keyfob can be easily replaced using the flat-head screwdriver. If the case is damaged or badly smashed it may be difficult to open. You'll need to take it to an auto shop to get the fob repaired.
It's not uncommon for a key fob be dropped, trampled on or even exposed to water. All of these events can cause physical damage to keys, such as bending or snapping them.
It can also cause internal damage to the fob that could cause a malfunction. It's a good idea, that's why you should always carry an extra fob in your wallet or in your pocket in case the one you're currently using breaks.
Make sure the battery is charged first to determine if the buttons on your key fob aren't working in the way they should. Remember that key fobs aren't a special kind of electronic device; most of them run on the same two-dollar batteries that are used in hearing aids and watches and are available at hardware stores, drug stores, and on the internet.
If the battery is working it's possible that the buttons are dirty or worn out and can be cleaned using a moist cloth to clean them. If the buttons still don't work, try an alternative car key fob. This will help determine if the problem is yours or an specific model. If the other key fob works, then yours may need to be reprogrammed or replaced.
Reprogramming
The world of car keys fobs is much more complex than the myths that surround it suggest. Basic fobs work using radio frequency signals that are unique to each car. The fobs have to be programmed correctly to unlock and start the car. Reprogramming a key fob is not as easy as pressing a few keys. broken car key repair near me 's usually handled by the dealer.
The process of reprogramming a fob is based on the model and model year of your car It is therefore essential to read the owner's manual to get step-by-step instructions. Some manufacturers, such as Mercedes, use proprietary technology that ensures only dealerships can design an entirely new fob and then sync it with your vehicle. However some independent shops provide this service as well so make sure to review reviews and prices prior to selecting the right shop.
Some car models will wipe out all other fobs after they've been reprogrammed, which means you'll need to get any additional fobs professionally programmed as well. This is an expensive proposition, especially if you're down to just one working fob. It is always advisable to have at minimum a spare mechanical key you can use to unlock the trunk and doors even if it doesn't start the car.
If you do decide to attempt to reprogram your fob yourself be prepared for a frustrating journey. There are numerous guides available online that promise success but you're likely to be disappointed. Many of these guides were created by people who have no experience in this area and are often founded on unsubstantiated claims. Some of these guides claim that you can easily program your car's key fob yourself with only a few clicks. This is a false claim.
The battery is usually held in place with clips made of plastic, which can be removed easily. However the circuit board houses the battery, so you will need to carefully pry the battery out using an instrument. Once you get inside, you'll be able locate the button cell battery, which is typically a tiny watch battery that is available in most pharmacies or home improvement stores. Removing the battery is typically simple, and it's always worthwhile to try this first before replacing the entire device.
Replacement
If the car key fob has been damaged or fails to function, it's important to know that there are a few ways to address the issue. An easy fix could be as simple as replacing the battery or changing the program on the key fob, however a more extensive repair may be required. A spare fob could be helpful in the event that one is lost or stolen.
Modern key fobs are more expensive and difficult to replace since they have a physical key and electronics. Some "smart fobs" include remote starters. As such, it's important to understand that it could take up to an hour to have a replacement key fob cut and programmed for your vehicle.
Fobs utilize a small radio transmitter on a circuit board to communicate with the car's receiver. Pressing a button activates the transmitter, and it transmits an RF signal that is unique to the car's receiver. The receiver recognizes the signal and checks it against the preprogrammed codes. This allows drivers to start the car from a distance, without the need to insert the key in the ignition.
If your key fob buttons aren't working or responding intermittently, they could be damaged by water. You could be able to fix the fob by taking it apart and looking for any damaged or non-responsive buttons. If this does not solve the issue, you can try reprogramming or buying a new fob.
Before purchasing a replacement key fob on the internet, seek out an expert locksmith or your local auto dealer to make sure it's compatible with the security system of your vehicle. Aftermarket fobs can be cheaper but you should look into the brands and read reviews prior to trying to program them yourself. While some fobs are able to be replaced by a trusted locksmith, other models require special equipment to program them that can only be used by a vehicle dealer or auto technician.