Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Key fobs can have issues over time, including the loss of functionality. Certain issues may require professional attention, but many can be fixed at home.
The first step is usually to replace the battery. Most fobs are powered by flat watches-style batteries that is easily available at auto parts or hardware stores.
Dead Battery
If a key fob battery dies, it can be a major inconvenience particularly if you're away from home. There are solutions to get your car back on the road if you're keyless entry system isn't working.
One of the first things you should be sure of is whether the buttons on the key fob work. If they aren't then the issue could be with the locks on your car.
If your keys do not unlock, you might find an electronic slot in the trim around your door handles or in 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 can open doors remotely. For example, the FordPass Connect app, the myChevrolet mobile app, and myMazda app allow owners to open their doors using their smartphones. However, these apps are subject to a monthly cost.
Also, you should ensure that your key fob isn't draining your car's battery by being plugged into it. A dead key fob can drain your battery fast particularly if it's used to control the TV or phone while you're watching.
The key fob should be held right up to your car's start button may cause a key fob with low 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 that has an electronic starter button. If it fails, the fob battery probably requires replacement. This is why it's a good idea keep a spare key fob in the bag or purse.
Damaged Buttons
It's possible that your key fob has a damaged button. The key fob has an electronic circuit that has "contact pads" which are covered by an electrically conductor film. This film wears off over time. This wear can cause your fob to respond less quickly, or not to respond at all.
The good news is that the contact pad inside the car key fob is simple to replace and is done with the help of a 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 have the fob repaired.
It's not uncommon for keys to be dropped on hard surfaces, trodden on, or exposed to water. All of these can cause physical damage to keys, such as bending or snapping them.
This could also cause internal damage to the fob that could result in a malfunction. This is why it's an ideal idea to keep a spare key fob in your pocket or wallet in case you accidentally damage the one you own.
If the buttons on your key fob aren't responding as they should, you should first make sure the battery is in good condition. Key fobs do not require any special electronic device. They utilize the same two-dollar battery that is used in hearing aids and watches. The batteries are available at drug, hardware, and online stores.
If the battery is functioning properly, the buttons may be worn or dirty. You can easily clean them using a damp cloth. If the buttons still don't work, try another car key fob. This will help you determine whether the issue is yours or a particular model. If the other fob works, it's likely that the key fob you have needs to be reset or perhaps replaced entirely.
Reprogramming
The hidden world of car keys fobs is much more complicated than most myths suggest. Basic fobs function on radio frequency signals specific to each vehicle. The fobs have to be programmed to unlock and begin the vehicle. Reprogramming a key fob is not as simple as pressing several keys. It's usually done by the dealer.
Refer to the owner's manual for detailed instructions. Some manufacturers, such as Mercedes, use proprietary technology that guarantees only dealers can create an entirely new fob and then sync it to your vehicle. However, some independent shops can provide this service as well so make sure to check reviews and prices before choosing a shop.
Some car models will erase other fobs once they've been reprogrammed, which means you'll need any additional fobs professionally programmed as well. This can be costly, especially if you're down to just one working fob. It is always advisable to have a spare mechanical key you can use to unlock the trunk and doors even if it doesn't start the car.
If you decide to try and reprogram your fob on your own be prepared for a frustrating journey. You'll be disappointed by the countless online guides that promise success. remote car key repairs of these guides were written by people who have no knowledge of this field, and they're often founded on unsubstantiated claims. Some of these guides claim that you can program your car key fob yourself with the click of a button. This is a false claim.
The majority of key fobs are held by a plastic clip that is easy to remove but the battery is inside the circuit board, and you'll need to carefully pull it out with a tool. You should be able to find the button battery. This is usually an insignificant battery for a watch, which you can purchase at most pharmacies or at home improvement stores. It's usually simple to replace the battery. Before replacing the entire unit, it's worth trying first.
Replacement
If your car key fob has been damaged or has stopped working it is important to know that there are a few ways to fix the issue. It could be possible to resolve the issue quickly by replacing the battery or reprogramming your key fob. However an extensive repair may be required. A spare fob is useful in the event that one is lost or taken.
Modern key fobs are more expensive and harder to replace since they have an actual key and electronics. Some "smart fobs" even come with a remote starter. It's important to understand that it could take up to an hour to cut and program an alternative fob for your vehicle.
Fobs communicate with the car receiver by using a small radio transmitter that is mounted on circuit boards. By pressing a button, the transmitter sends an RF signal specific to the car receiver. The receiver recognizes the signal and checks it against preprogrammed codes. This lets the driver unlock the car and start it from a distance without inserting the key into the ignition or turning a lock.
If the buttons on your key fob are not responding or working in a sporadic manner, they may have been damaged by water. It is possible to repair the fob by removing it and looking for any damaged or non-responsive buttons. If this does not solve the problem, try reprogramming or buying an entirely new fob.
Before buying a replacement key fob online, you should consult a professional locksmith or your local dealer to make sure it's compatible with the security system of your vehicle. Aftermarket fobs can be cheaper however, you must look into the brands and read reviews prior to attempting to program them yourself. While some fobs can be replaced by a reputable locksmith, other models require special equipment for programming that can only be used by a professional auto dealer or auto technician.