Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Over time, key fobs could have issues, such as a losing functionality. While some issues might require professional attention, the majority can be fixed at home.
The first step is typically to replace the battery. The majority of fobs are powered by flat watches-style batteries that is easily available in hardware or auto parts stores.
Dead Battery
It can be a major problem when a key fob's battery is dead. This is especially the case when you are far from home. There are solutions to get your vehicle back on the road if your keyless entry system isn't working.
One of the first things you should be sure of is whether the key fob's buttons still work. If they don't it could be a problem with the car's locks.
If your keys will not unlock, you may find a mechanical 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 doesn't work certain cars come with an app that allows you to unlock doors remotely. FordPass Connect, myChevrolet Mobile App and myMazda apps, for example allow owners to open their doors using their smartphones. These apps are charged a monthly subscription fee.
It is also important to ensure that your key fob isn't draining the car's battery by resting on it. A dead fob will drain your battery fast particularly if it's used to control the TV or phone while you're watching.
A key fob that's just low on battery can sometimes be activated by holding it up to the start button. It's a quick fix that will save you a trip to the dealership or to select Interstate All Battery Center locations.
If your key fob does not work You can test it in a car with an electronic starter button. If it's not working it's likely that the battery 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 has a damaged button. Your key fob likely contains an electronic circuit board that has "contact pads" for each button. These little pads are coated with a conductor of electricity which wears down over time. The wear may cause your device to respond more slowly, or even not at all.
The good news is that the contact pad inside the car key fob can be replaced easily, and can be done so by using a simple 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 repair shop to get the fob repaired.
It's not uncommon for a key fob to be dropped on hard surfaces, trodden on, or exposed to water. All of these incidents can cause physical damage, including bending and snapping the keys.
This could also cause internal damage to the fob that could lead to an issue. It's a good idea so, always keep a spare fob in your purse or in your pocket in case the one you're using breaks.
If the buttons on your key fob aren't working as they should, first check to make sure the battery is in good condition. Key fobs don't need any special electronic device. They are powered by the same battery for two dollars that is used in hearing aids and watches. The batteries are available at hardware, drug, and online stores.
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 the buttons still don't work, try a different car key fob. This will help you determine if the problem is yours or an specific model. If the other key fob is working, then yours might need to be reset or replaced.
Reprogramming
The world of car key fobs is more intricate than what some myths suggest. Basic fobs operate with radio frequency signals that are specific to each vehicle. The fobs must be properly programmed to unlock and begin the vehicle. Unfortunately, reprogramming car remote key repair fob isn't as simple as pressing a few buttons and with very few exceptions it must be handled by a dealer.
Refer to the owner's manual for specific instructions. Some manufacturers, such as Mercedes have their own proprietary technology that makes sure only dealerships can design an entirely new fob and then sync it to your vehicle. Some independent shops may also offer this service, so make sure to check reviews and prices prior to selecting the right shop.
Some car models will erase all other fobs if they're changed. This means that you'll have to have any extra fobs programmed by an expert. This is a costly proposition particularly if you're down to one functioning fob. It is always advisable to have at minimum a spare mechanical key that you can use to unlock the trunk and doors even if it's not able to start the car.
Be prepared for vehicle key repairs if you decide to reprogram your fob by yourself. You'll be disappointed with the numerous guides on the internet that promise success. A lot of these guides were written by people who have no experience in this area and often are based on unsubstantiated claims. Some of them even state that you can program your own car key fob with just a few clicks, which is extremely misleading.
The battery is usually secured with clips made of plastic, which is easily removed. However, the circuit board contains the battery, and you will need to carefully pry the battery out using the aid of a tool. You should be able find the button battery. This is usually a small battery for a watch that you can purchase at most pharmacies or home improvement stores. It's usually simple to replace the battery. Before replacing the whole unit, you can try replacing the button cell first.
Replacement
There are several ways to fix a damaged or damaged car key fob. It may be possible to fix the problem quickly by replacing the battery or programming your key fob. However, a more extensive repair might be required. A spare fob can be useful in the event one is stolen or lost.
Modern key fobs are more expensive and harder to replace because they contain an actual key as well as the electronics. Certain "smart" fobs also come with a remote starter. It's therefore important to understand that it can take up to an hour for a new key fob cut and programmed for your vehicle.
Fobs make use of a tiny radio transmitter that is mounted on a circuit board to communicate with the car's receiver. By pressing a button the transmitter emits an RF signal that is unique to the car's receiver. The receiver recognizes the signal and verifies it against preprogrammed codes. This lets the driver unlock the car and start it from a distance without placing the key in the ignition or turning a lock.
If the buttons on your key fob fail to respond or operate intermittently it could mean that they have been damaged by water or other factors. You may be able to fix the fob by disassembling it and inspecting for any broken or unresponsive buttons. If this doesn't resolve the issue, try reprogramming it or purchasing an entirely new fob.
Before buying a replacement key fob online, contact a professional locksmith or your local dealer to make sure it's compatible with the security system of your vehicle. You can find aftermarket fobs less expensive, but it's crucial to study the brands and read reviews prior to trying to program them. While some fobs are able to be replaced by a trusted locksmith, others require special programming equipment that can only be used by a car dealer or auto technician.