Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Over time, key fobs can be affected by issues such as loss of functionality. Certain issues might require professional attention, but many can be fixed at home.
Changing the battery is often the first step. Most fobs run on a flat watch-style battery, which is easily available in hardware or auto parts stores.
Dead Battery
When a key fob battery fails, it can be a major inconvenience especially if you're far from home. There are ways to get your vehicle back on the road if you're keyless entry system isn't working.
One of the first things to examine is to determine if the buttons on the key fob function. If they don't then the issue could be with the car's locks.
If the keys aren't unlocking you need to look for a mechanical key slot located in the trim of your door handle or somewhere else on the vehicle (consult your 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 the door remotely. For instance, the FordPass Connect app, the myChevrolet mobile app and myMazda app permit owners to open their doors using their smartphones. These apps are charged a monthly subscription fee.
You should also make sure that your key fob isn't draining your vehicle's battery by resting on it. A dead key fob will quickly drain your battery, particularly if you use its remote functions while watching TV or talking on the phone.
Holding the key fob right towards the start button may cause a key fob with a low battery. This simple fix could save you from a trip to your dealer or Interstate All Battery Centers.
If car key fob repairs won't work try testing it in a car with an ignition button. If it doesn't work, it could be necessary to replace the fob battery. It's a good idea to keep an extra key fob in your backpack or purse.
Damaged Buttons
It's possible that the key fob has a damaged button. The key fob may contain circuit boards with "contact pads" for each button, and these little pads are coated with a conductor of electricity that wears away over time. This wear can cause your fob to respond less quickly, or not to respond at all.
The pad that contacts a car keyfob can be easily replaced using an flathead screwdriver. If the key fob has been badly damaged or broken in any way, it may be more difficult to remove the case, and you'll have to take the fob into an auto repair shop to be repaired.
It's not unusual for a key fob to be thrown around, trampled upon or even exposed to water. All of these incidents can cause physical damage, such as breaking and snapping keys.
It could also affect the internals of your fob, which could lead to an issue. It's a good idea that's why you should always carry a spare fob in your purse or pocket in the event that the one you're using breaks.
Make sure the battery is charged first to determine if the buttons on your key fob aren't working like they should. Remember that key fobs aren't any special type of electronic device - most of them run on the same batteries for two dollars that are used in hearing aids and watches that are readily available at hardware stores, drug stores, and online.
If the battery is in good condition it is possible that the buttons are dirty or worn out. remote key repair can easily clean them using a damp cloth. If they're still not responding, test a different key fob to see whether the issue is with yours, or a specific kind of car key fob. If the other fob functions then it's likely your key fob needs to be reprogrammed or even replaced completely.
Reprogramming
The secret world of car key fobs is more complicated than the myths suggest. Basic fobs work using radio frequency signals that are unique to each car. The fobs must be properly programmed to unlock and start the vehicle. Reprogramming a key fob is not as simple as pressing several keys. It is usually handled by the dealer.
Refer to the owner's manual for specific instructions. Some manufacturers, like Mercedes, use proprietary technologies that only dealers are capable of creating a new key fob and resync it to your vehicle. However certain independent shops provide this service too so make sure to look up reviews and prices prior to choosing the right shop.
Some car models will wipe out all other fobs when they're programmed, meaning you'll need any additional fobs professionally programmed as well. This can be costly particularly if you're down to just one working fob. Even when remote key repair doesn't work to start the vehicle, it's a great idea to have a backup option that can open the doors and trunk.
If you do attempt to reprogram your fob yourself be prepared for a frustrating journey. There are numerous guides available on the internet that promise success but you're likely to be disappointed. A lot of these guides were written by people who have no experience and are based on unsubstantiated assertions. Some of these guides claim that you can easily program your car key fob with just the click of a button. This is a false claim.
Most key fobs are held by a clip made of plastic that is easy to remove however, the battery is located inside the circuit board, which means you'll have to carefully pry it out with a tool. You should be able to find the button cell battery. This is usually a small battery for a watch that is available at most home improvement or pharmacies. It's typically easy to replace the battery. Before replacing the entire device, you should try it first.
Replacement
If a car key fob is damaged or fails to function, it's important to know that there are several ways to remedy the problem. It could be possible to resolve the issue quickly by replacing the battery or programming your key fob. However it is possible that a more extensive repair may be needed. A spare fob is useful in the event that one is stolen or lost.
Modern key fobs are more expensive and difficult to replace due to the fact that they have an actual key along with electronic. Some "smart" fobs have a built-in remote starter. It's important to understand that it can take up to an hour to cut and program the replacement fob to your vehicle.
Fobs utilize a small radio transmitter that is mounted on circuit boards to communicate with the car's receiver. Pressing the button triggers the transmitter, which transmits an RF signal that is unique to the car's receiver. The receiver detects and compares the signal with preprogrammed codes. This allows the driver to unlock the car and start it from a distance, without inserting the key into the ignition or turning the lock.
If the buttons on your key fob do not respond or work sporadically it could mean that they have been damaged due to water or other elements. You could be able to fix the fob by removing it and inspecting for any broken or unresponsive buttons. If this doesn't resolve the problem, you can try reprogramming the fob or getting another one.
Before buying a replacement key fob on the internet, contact an expert locksmith or your local dealer to make sure it's compatible with your vehicle's security systems. There are many aftermarket fobs less expensive, but it's crucial 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 programming equipment that can only be used by a vehicle dealer or auto technician.