14 Common Misconceptions 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 can experience problems over time, including a loss of functionality. Certain issues may require professional attention, however many can be fixed at home.
The first step is usually to replace the battery. Most fobs use batteries with a flat design which are easily found at auto parts stores.
Dead Battery
If the battery for a key fob fails, it can be a huge inconvenience particularly if you're away from home. Fortunately, there are ways to get back on the road even if your vehicle's keyless entry system isn't working.
The first thing you should check is if the buttons on the fob still work. If they do not it could be a problem in the car's locks.
If your keys will not unlock, you may find a mechanical slot within 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 fails to unlock the door, some cars have an application that lets you unlock the door remotely. FordPass Connect MyChevrolet Mobile App, myMazda apps, for instance allow owners to open their doors using smartphones. These apps charge monthly subscription fees.
It is also important to ensure that your key fob isn't draining your vehicle's battery by resting on it. A dead key fob can drain your battery quickly especially if it's used to control the TV or phone while you're watching.
A key fob that's just low on battery can be activated by holding it up to the start button. This simple fix can save you from having to visit your dealer or to certain Interstate All Battery Centers.
If your key fob won't work, you can test it in a car with a push-button starter. If it doesn't work it's likely that the battery requires replacement. This is why it's a good idea to keep a spare key fob in a purse or backpack.
Damaged Buttons
If your key fob is unable to open doors or start your vehicle remotely, it's possible that one or more of its buttons is damaged. Your key fob is equipped with a circuit with "contact pads" which are covered by an electrically conductor film. The film wears off over time. The wear may cause your device to respond slower, or not at all.
The good news is that the contact pad in a car key fob is easy to replace, and it can be done by using a simple flathead screwdriver. If the case is damaged or badly damaged it will be difficult to open. It is necessary to take it to an auto shop to get the fob repaired.
It's not unusual for a key fob to be dropped, trampled on, or exposed water. All of these events can cause physical damage, including breaking the keys and snapping them.
It could also affect the internals of the fob which could result in malfunction. This is why it's an ideal idea to keep an extra key fob in your pocket or wallet in the event that you break the one you already have.
Examine the battery first to determine if your key fob buttons are not responding in the way they should. Keep in mind that key fobs aren't a special type of electronic device - most of them run on the same batteries for two dollars that are used in watches and hearing aids and are available at hardware stores, drug stores, and on the internet.
If the battery is functioning properly 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, try a different type of key fob to see whether the problem is with yours or a specific kind of car key fob. If the other key fob functions, then yours may need to be reset or replaced.
Reprogramming
The secret world of car key fobs is much more intricate than what some myths would suggest. Basic fobs function on radio frequency signals unique to each car. The fobs have to be programmed to unlock and start the vehicle. Reprogramming a key fob not as simple as pressing a few keys. It is usually handled by the dealer.
The procedure for reprogramming the fob depends on the make and model year of your car, so it's important to consult the owner's manual to get step-by-step instructions. Some manufacturers, such as Mercedes utilize proprietary technology that guarantees only dealerships can design the new fob and sync it to your vehicle. However, some independent shops can provide this service as well so make sure to review reviews and prices prior to choosing a shop.
Certain models of cars will erase all other fobs after they've been reprogrammed, which means you'll need any additional fobs professionally programmed as well. This can be costly, especially if your fob is no longer working. It's always recommended to have a spare mechanical key you can use to open the trunk and doors even if it doesn't start the car.
Be prepared for a frustrating experience if you decide to reprogram your fob yourself. There are countless guides on the internet 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 statements. Some of these guides claim that you can program your car's key fob yourself with the click of a button. This is false.
Most key fobs are held by a clip made of plastic which is easy to remove, however, the battery is located inside the circuit board, and you'll need to carefully pull it out with a tool. Once you've gotten inside, you should be able to find the button cell battery, which is typically a small watch battery that is available at most pharmacies or home improvement stores. It's usually easy to replace the battery. Before replacing the whole unit, you can try replacing the button cell first.
Replacement
If the car key fob has been damaged or has stopped working, it's important to know that there are several options to fix the issue. It may be possible to fix the problem quickly by replacing the battery or programming your key fob. However, a more extensive repair may be needed. It can also be helpful to keep a spare fob 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" even include remote starters. It's important to be aware that it could take up to an hour to cut and program a replacement fob for your vehicle.
Fobs communicate with the car receiver by using a small radio transmitter on circuit boards. By pressing a button, the transmitter emits an RF signal specific to the car's receiver. The receiver detects the signal and validates it against preprogrammed codes. car key remote repair near me allows a driver to start the car from a distance, without the need to insert the key in the ignition.
If your fob's buttons aren't working or responding in a sporadic manner, they may have been damaged by water. You can repair the fob by taking it apart and look for buttons that are not responsive or broken. If this doesn't solve the issue, you can try reprogramming or buying an entirely new fob.
Before buying a replacement key fob on the internet, consult a professional locksmith or your local auto dealer to make sure it's compatible with the security system of your vehicle. There are a variety of aftermarket key fobs available cheaper, but it's essential to study the brands and read reviews before trying to program them. While some fobs can be replaced by a reputable locksmith, others require specialized programming equipment that can only be used by a vehicle dealer or auto technician.