Key Fob Repair Service - 5 Common Reasons Your Key Fob Won't Work
It can be a frustrating experience when your key fob malfunctions. Luckily, most fob problems aren't serious or complicated and can be solved at home or by an auto locksmith close to you.
The first step is to examine the fob's keypad for physical damage and a dead battery. Then, you can try resetting the fob using instructions in the owner's manual.
Dead Key Fob Battery
A key fob lets you to unlock and even start your vehicle without having to mess around with your physical keys. Many models unlock doors hatchbacks, and trunks by pressing the button. While the battery for your key fob has died could be a huge issue, it's actually just one of the easiest issues to resolve. Many car owners know that they can go to a dealership or repair shop to get help, but did you realize that you could also try to fix your own fob yourself at home?
You'll require a brand-new CR2032. They are available in a multipack from most hardware stores. Then make use of an flathead screwdriver or watch to pry open the fob case. There's usually a slot or notch to start, and once you've created the first gap, you can use your tool as you peeling an apple or orange to open the case further. Be gentle in order not to damage the fob, or its circuit board.
The new battery should be placed under the tabs marked with yellow arrows on this photo. Make sure it goes in over the two tabs highlighted by green arrows. Once the new battery has been put in place, close up your key fob, and then test it. If it doesn't work then it's time to call an expert for more thorough troubleshooting.
In rare instances replacement of the battery in a key fob can still leave you with a nonfunctional device. In this situation it's likely that there's a problem with the device or vehicle. Keep a spare keyfob on hand to be prepared in the event that your battery dies, or if another problem arises.
You may also ask an expert to provide other key fob repair procedures. They can look for damages to buttons and contacts, as well as other parts and also do reprogramming and synchronization if your vehicle is having a difficult communicating with your key fob.
Damaged Key Fob Battery
The majority of key fobs are powered by a tiny battery, which powers the internal components. This includes the buttons that turn on the chip and antenna for releasing a radio frequency. The battery also powers plastic casings to protect these components. Your key fob will not function if the battery dead. Fortunately, the solution is simple and inexpensive to replace it. A lot of manufacturers provide instructions in their user's manuals on how to replace the battery on the key fob. It may be a bit difficult, but it is easy to complete and you'll likely save money by doing it yourself, rather than bringing the fob into the auto shop or dealership.
If your key fob not working after replacing the battery, you could be experiencing another problem. Inspect the key fob for indications of physical damage, such as cracks or scratches. You can also examine the circuit board by opening the case. If you feel comfortable, you can make use of a cotton ball that has been dipped into rubbing alcohol to clean contact points on the circuit board of the key fob. This will get rid of the corrosion, but not damage to the fob.
Key fobs must also be programmed to connect to the receiver of the vehicle. This is done to ensure that only people who have keys for the same vehicle can unlock the car and to stop other key fobs from trying to access vehicles they are not intended for. If you've recently had your keyfob repaired or replaced or it has been in use for a long time the transmitter and receiver may have been disconnected.

An effective way to test this is by using a spare key fob you have. This will inform you whether the issue is related to the key fob or the electrical system in your vehicle. A car mechanic can help you reconnect any wires that are disconnected and assist you in resolving the problem. You can also try connecting the key fob to a different receiver and see if this fixes the issue. If you are unable connect your key fob to an alternative receiver in your vehicle, you could be required to take it to a car dealership or auto repair shop to get more specific repairs.
Damaged Key Fob Transmitter
It's a huge hassle when your car's key fob fails to work. Most key fobs for cars can be repairable by following a few easy steps. Check the fob to determine whether it's got any physical damage and ensure that it's not dead. If a replacement battery doesn't solve the problem there could be a more serious issue.
Car key fobs have a lot of moving parts, which is why it's normal to expect them to suffer wear and tear over time. A damaged transmitter on your fob can hinder your vehicle from starting or from unlocking the doors. A damaged transmitter could also interfere with radio signals that are sent from your key fob to the receiver inside the car. Bring your key fob to a professional for repair and inspection if you suspect that the transmitter is damaged.
Batteries are often the cause of a key fob that isn't working. Key fob batteries generally last between three and five years, so it's recommended to buy new batteries regularly.
Replacing a key fob's battery is a relatively simple process that can be done by most people at home. All you need is a flat-head screwdriver to break open the case, and then you can replace the battery with a brand new one. The majority of key fobs utilize 3V button cell batteries that are sold at most auto parts stores.
Another reason that your key fob might stop responding is due to an unreliable receiver. This can be a very frustrating issue, as it usually occurs when you're driving. If your key fob doesn't seem to be receiving a signal try putting it in the driver's side of the door lock.
A damaged receiver may cause your key fob to behave in a strange manner, for example, turning off or locking the vehicle whenever you press one of its buttons. If you have an extra key fob, test it to see if it will respond to the vehicle's commands. If you don't have an extra key fob, call your dealer for assistance. In some instances, a new-car dealership may be able to provide an alternative for free when your current fob is covered by warranty.
Key fob receiver damaged
While key fobs are great convenience tools that allow us to lock, unlock, and start our vehicles, they can be susceptible to a variety of problems. If the remote key fob for your car isn't working correctly, you may need to contact a locksmith an auto dealer. Fortunately, many common key fob issues are easily fixed without needing to pay for an expensive replacement. Here are five of the most common reasons your key fob may not be functioning:
Key Fob Needs Re-Programming
Over time, a car's key fob transmitter and receiver may get out of sync with each other. To fix this problem, you will need to sync the key fob and its receiver by following the reprogramming instructions for your vehicle. These instructions are available in the owner's manual, or ask your dealer in person for assistance.
If the re-programming of your key fob fails to solve the issue, there may be other issues or interference to your key fob, or its receiver. It's generally easy to repair if you open your key fob and take an in-depth look inside. Look for indications of damage such as cracks in the circuit board, tiny electronic components that aren't attached to the circuit board, or bent or damaged battery contacts. If you find any of these, you can fix your key fob by replacing the damaged parts.
The best option for you is based on your budget and convenience. If your key fob is damaged or dropped, it may be more affordable to have it replaced professionally. In any case, take good care of your key fob so that it can perform smoothly for a long time. By regularly cleaning it and avoiding exposure to extreme temperatures or electromagnetic fields, you can ensure it will last the longest time possible. If car key and repair choose an expert who is familiar with the model and make of your vehicle, you can be sure that your key fob is functioning as it should be.