Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Over time, key fobs may experience problems such as loss of functionality. While some issues may require professional attention, the majority can be fixed at home.
The battery replacement is usually the first step. The majority of fobs have flat watch-style batteries that are easy to find at auto parts stores.
Dead Battery
It can be a major issue when the battery of a key fob is dead. This is especially true when you're away from home. However, there are options to get back on the road when your car's keyless entry doesn't work.
The first thing to test is to see if the buttons on the key fob still work. If they do, the issue may be in the locks of your car instead of the fob.
If your keys will not unlock, you might find a mechanical slot in the trim around the door handles or elsewhere on your vehicle (consult the owner's manual). Insert the mechanical key and try again. If this doesn't work there are some cars that have an app that lets you open doors remotely. For instance, the FordPass Connect app, myChevrolet mobile app and myMazda app permit owners to open their doors with their smartphones. These apps are charged monthly subscription fees.
It is also important to ensure that your key fob doesn't drain your car's batteries by being plugged into them. A dead fob can quickly drain your battery, particularly when you utilize its remote features while watching TV or speaking on the phone.
Holding the key fob towards the start button may cause a key fob with an empty battery. This simple fix could save you from having to visit your dealer or certain Interstate All Battery Centers.
If your key fob won't work, you can test it in a vehicle with an ignition button. If it doesn't work, the fob battery probably needs replacement. It's a good idea to keep an extra key fob in your purse or backpack.
Damaged Buttons
It's possible that your key fob has a damaged button. The key fob may contain circuit boards with "contact pads" for each button. These little pads are coated with an electricity conducting film that wears away over time. The wear may make your fob respond less or not at all.
The good news is that the pad in the key fob of a car is simple to replace and it can be done with the help of a flathead screwdriver. If the case is damaged or badly smashed it will be difficult to open. It is necessary to take it to an auto repair shop to repair the fob.
It's not unusual for a key fob to be thrown around, trampled upon or even exposed to water. All of these can cause physical damage to the keys, including bending or snapping them.
This can also affect the internals of the fob which could result in malfunction. It is a good idea, therefore, to always carry an extra fob in your wallet or pocket in case the one you're using breaks.
Make sure the battery is charged first If your key fob's buttons aren't working in the way they should. Be aware that key fobs aren't a special type of electronic device - most of them run on the same two-dollar batteries used in hearing aids and watches, which are readily 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 with a damp cloth. If they're still not responding, try a different key fob to see whether the problem is with yours, or a specific kind of car key fob. If the other key fob works it is possible that yours needs to be reset or replaced.
Reprogramming
The world of fobs for car keys is more complex than the myths that surround it suggest. The basic fobs operate by using unique radio frequency signals that are assigned to specific vehicles. The fobs must be properly programmed to allow unlocking and starting the vehicle. Reprogramming a key fob not as easy as pressing several keys. It's usually done by the dealer.
Check the owner's manual for detailed instructions. Some manufacturers, such as Mercedes utilize proprietary technology that guarantees only dealers can create the new fob and sync it with 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 once they've been changed, so you'll need any additional fobs programmed professionally. This can be costly, especially if your fob is no longer working. Even in the event that the mechanical key will not work to start your vehicle, it's a great idea to have a backup key that can open the trunk and doors.
If you do attempt to reprogram your fob yourself be prepared for a frustrating journey. car key repair company 'll be disappointed by the numerous guides on the internet that claim to be successful. A lot of these guides were written by people who have no experience and are based on unsubstantiated assertions. Some of them even state that you can program your own car key fob in just a few clicks, which can be very misleading.
The battery is typically secured with a plastic clip, which can be easily removed. However, the circuit board contains the battery, so you'll need to pry the battery out using the aid of a tool. Once you've got inside, you should be able to locate the button cell battery which is typically a tiny watch battery that is available at most pharmacies or home improvement stores. Removing the battery is typically an easy process, but it's always worth trying this first before replacing the entire unit.
Replacement
If the car key fob is damaged or fails to function it is crucial to know there are several ways to address the issue. It is possible to repair the issue quickly by replacing the battery or reprogramming your key fob. However it is possible that a more extensive repair may be required. It's also beneficial to have a spare key fob in case one gets lost or stolen.
Modern key fobs are more expensive and more difficult to replace due to the fact that they have an actual key as well as the electronics. Certain "smart" fobs even have a built-in remote starter. It's important to know that it could take an hour or more to cut and program an alternative fob for your vehicle.
Fobs communicate with the car's receiver using a tiny radio transmitter on circuit boards. 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 validates it against preprogrammed codes. This allows the driver to open 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 fail to respond or operate intermittently it could indicate that they have been damaged due to water or other elements. You may be able to fix the fob by removing it and looking for any damaged or non-responsive buttons. If this doesn't fix the issue, you can try reprogramming your fob or purchasing another one.
You should check with a local auto dealer or a locksmith before buying a replacement keyfob on the internet to ensure that it is 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 trying to program them yourself. While some fobs are able to be replaced by a reputable locksmith others require specialized programming equipment that can only be used by a professional auto dealer or auto technician.