key repairs - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Over time, key fobs may have issues, such as a malfunction. While some issues might require professional attention, the majority can be resolved at home.
The first step is usually to change the battery. The majority of fobs are powered by flat watch-style batteries, which is easily available at hardware stores or auto parts stores.
Dead Battery
When a key fob battery is dead, it could be a major hassle, especially if you're away from home. However, there are options to get back on the road even when your vehicle's keyless entry system isn't working.
One of the first things you should be sure of is to determine if the key fob's buttons still work. If they don't, the problem could be with the car's locks.
If your keys will not unlock, you may find a mechanical slot within the trim around the door handles or in your car (consult the owner's manual). Insert the mechanical key and try again. If this doesn't unlock the door, certain cars have an application that lets you unlock it remotely. For instance, the FordPass Connect app, the myChevrolet mobile app and myMazda app allow owners to unlock the doors using smartphones. However, these apps require a monthly cost.
It is also important to ensure that your key fob isn't draining your vehicle's battery by resting on it. A dead fob can drain your battery quickly especially if it's used to control the TV or phone while you are watching.
A key fob that's low on battery can sometimes be started by holding it right up to the start button. It's a quick fix that can save you a trip to the dealer or even select Interstate All Battery Center locations.
If your key fob won't work You can test it in a car with an electronic starter button. If it fails, the fob battery probably needs replacement. This is why it's a good idea keep a spare key fob in a purse or backpack.
Damaged Buttons
It's possible that your key fob is damaged and has a button. Your key fob is likely to have circuit boards with "contact pads" for each button. These tiny pads are coated with a conductor of electricity which wears down over time. This wear can make your fob respond slow or not respond at all.
The good news is that the pad in a car key fob 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. You'll need 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 exposed to water. All of these events can cause physical damage, including breaking and snapping keys.
It could also alter the internals of the fob, which could lead to an issue. This is why it's a good idea to carry an extra key fob in your wallet or pocket in case you break the one you already have.
If the buttons on your key fob aren't responding as they should, you should first make sure the battery is in good condition. Keep in mind that key fobs aren't any special type of electronic device - they're typically powered by the same two-dollar batteries used in hearing aids and watches and are accessible at drug stores, hardware stores, and online.
If the battery is in good condition the buttons could be worn or dirty. You can easily clean them using a damp cloth. If the buttons don't work, you can test a different car key fob. This will help determine if the problem is yours or a particular model. If the other fob functions then it's likely the key fob you have needs to be reset or possibly replaced entirely.
Reprogramming
The world of car key fobs is much more complex than some myths suggest. Basic fobs function on radio frequency signals specific to each car. The fobs must be programmed correctly in order for them to unlock and start the car. Unfortunately it's not as simple as pressing a few buttons, and with only a few exceptions it must be handled by a dealer.
The procedure of reprogramming a fob depends on the make and model year of the car you own It is therefore essential to refer to the owner's manual for step-bystep instructions. Certain manufacturers, such as Mercedes, use proprietary technologies that only dealers are able to create a new key fob and then resync it to your vehicle. However some independent shops provide this service as well and you should check reviews and prices before selecting a shop.
Some car models will erase all other fobs once they're programmed again. This means that you'll have to have any additional fobs programmed by an expert. This can be costly, especially if your fob isn't working anymore. Even when the mechanical key doesn't work to start your vehicle, it's a good idea to have a backup that can open the doors and trunk.
If you decide to try and reprogram your fob yourself, be prepared for a gruelling journey. You'll be disappointed by the numerous online guides that promise success. Many of these guides are written by people with no experience in this area, and they're often based on unsubstantiated claims. Some of these guides claim that you can easily program your car key fob yourself with only a few clicks. This is a false claim.
The battery is usually held in place by a plastic clip, which can be removed easily. However the circuit board houses the battery, and you'll need to pry the battery out using the aid of 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 a variety of pharmacies or at home improvement stores. Replacing the battery is usually simple, and it's always worthwhile to try first before replacing the entire unit.
Replacement
If the car key fob has been damaged or isn't functioning it is important to know that there are a few ways to fix the issue. It's as simple as replacing the battery or reprogramming the key fob, but a more in-depth repair might be required. A spare fob can be useful in the event one is lost or stolen.
Modern key fobs are more expensive and harder to replace because they contain an actual key as well as the electronics. Some "smart" fobs also have a built-in remote starter. It's therefore important to be aware that it could take up to an hour to get a new key fob cut and programmed to your vehicle.
Fobs make use of a tiny radio transmitter on a circuit board to communicate with the car's receiver. By pressing a button the transmitter emits an RF signal unique to the car's receiver. The receiver recognizes the signal and checks it against preprogrammed codes. This lets the driver unlock the car and begin it from a distance, without putting the key in the ignition or turning the lock.
If the buttons on your key fob fail to respond or operate intermittently, it can indicate that they have been damaged due to water or other elements. It is possible to repair the fob by taking it apart and examine for broken or non-responsive buttons. If this does not solve the issue, you can try reprogramming the fob or purchasing an entirely new fob.
It is recommended to consult an auto dealer in your area or a locksmith before purchasing a replacement keyfob online to ensure it is 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 prior to trying to program them. While some fobs are able to be replaced by a reputable locksmith, others require special equipment to program them that can only be used by a vehicle dealer or auto technician.