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. Certain issues may require professional attention, but many can be resolved at home.
The battery replacement is usually the first step. Most fobs use flat watches that are readily available in hardware stores or auto parts stores.
Dead Battery
It can be a real problem when a key fob's battery goes out. This is especially true if you are away from home. However, there are options to get back on the road the car's keyless entry doesn't work.
One of the first things to check is to determine if the buttons on your key fob work. If they aren't it could be a problem with the locks on your car.
If your keys don't work try looking for a key slot with a mechanical lock hidden in the trim of your door handle or in another location on the car (consult your owner's manual). Insert the mechanical key and try again. If this doesn't unlock the door, some cars have an app that allows you to unlock the door remotely. For example the FordPass Connect app, the myChevrolet mobile app, and myMazda app allow owners to unlock their doors using their smartphones. However, these apps are subject to a monthly cost.
It is also important to ensure that your key fob isn't draining your car's battery by resting on it. A dead fob can quickly drain your battery, especially when you utilize its remote feature while watching TV or speaking on the phone.
A key fob that's low on battery can 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 select Interstate All Battery Center locations.
If your key fob won't work, you can test it in a car with an ignition button. If it's not working the battery of the fob needs replacement. It's a good idea keep a spare key fob in your purse or backpack.
Damaged Buttons
It's possible that the key fob is damaged and has a button. Your key fob is equipped with an electronic circuit that has "contact pads" that are covered with an electrically conductory film. This film wears off over time. This wear could cause your fob to respond slow or not respond at all.
The pad that contacts a car keyfob can be easily replaced with an flathead screwdriver. If the case is damaged or badly damaged it may be difficult to open. You'll need to take it to an auto shop to get the fob repaired.
It's not common for a key fob be thrown around, trampled upon or even exposed to water. All of these events can cause physical damage, such as breaking the keys and snapping them.
This can also affect the internals of the fob which could result in a malfunction. It's a good idea, therefore, to always carry a spare fob in your wallet or pocket in case the one you're using is damaged.
Examine the battery first to determine if your key fob buttons are not responding in the way they should. Key fobs don't require a special type of electronic device. They are powered by the same two-dollar battery that is used in hearing aids and watches. These batteries are available in drug, hardware and online stores.
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 type of key fob to see whether the issue is with yours, or with a specific type of car key fob. If the other key fob is working, then yours might need to be reprogrammed or replaced.
Reprogramming
The secret world of car key fobs is much more complex than some myths suggest. The basic fobs function by using unique radio frequency signals that are assigned to specific vehicles. The fobs have to be programmed to unlock and start the vehicle. Unfortunately it's not as easy as pressing a few buttons and with only a few exceptions it has to be done by a dealer.
Consult your owner's guide for specific instructions. Some manufacturers, such as Mercedes have their own proprietary technology that makes sure only the dealership can create a new fob and re-sync it to your vehicle. Some independent shops may offer this service, so be sure to read reviews and prices before selecting a 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 a professional. This is a costly proposition, especially if you're just one functional fob. It's always recommended to have a backup mechanical key that you can use to open the trunk and doors even if it doesn't start the car.
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 claim to be successful. A lot 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 easily program your car key fob by yourself in just the click of a button. This is false.
The battery is typically held in place with clips made of plastic, which can be removed easily. However the circuit board is home to the battery, and you will need to carefully remove the battery using a tool. You should be able to locate the button battery. It's usually a small battery for watches that can be purchased at any pharmacies or at home improvement stores. It's typically easy to replace the battery. Before replacing the entire unit, it's worth trying first.
Replacement
There are many ways to fix a damaged or non-functioning car key fob. More Signup bonuses may be possible to fix the problem quickly by replacing the battery or programming your key fob. However it is possible that a more extensive repair may be needed. A spare fob can be helpful in the event that one is lost or taken.
Most modern key fobs contain an incredibly small physical key, in addition to the electronic component they use, which makes them both more expensive and more complex to replace than traditional keys. Certain "smart" fobs also have a built-in remote starter. Therefore, it's important to know that it could take up to an hour to get an alternative key fob cut and programmed for your vehicle.
Fobs use a small radio transmitter that is mounted on circuit boards to communicate with the car's receiver. Pressing More Signup bonuses will activate the transmitter, which transmits a unique RF signal to the car's receiver. The receiver recognizes and compares the signal to preprogrammed codes. This allows the driver to unlock 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 aren't working or responding in a sporadic manner, they may be damaged by water. It is possible to repair the fob by disassembling it and looking for any damaged or unresponsive buttons. If this doesn't resolve the issue, you can try reprogramming it or purchasing an entirely new fob.
Before buying a replacement key fob on the internet, contact an expert locksmith or your local dealer to ensure that it's compatible with the security system of your vehicle. The fobs from the aftermarket can be less expensive but you should look into the reviews and brands before attempting to program them yourself. While some fobs are able to be replaced by a reputable locksmith, others require specialized equipment to program them that can only be used by a car dealer or auto technician.