Key Fob Repair Service - 5 Common Reasons Your Key Fob Won't Work
The loss of your key fob down can be an inconvenient situation. Most fob issues can be solved at home by an auto locksmith, or aren't urgent.

First, check the key fob to see whether it is suffering from physical damage or an inoperative battery. Then, try to reset the fob using instructions in your owner's manual.
Dead Key Fob Batteries
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, trunks, and hatchbacks by pressing a button. A lost key fob is not as difficult to fix as it might seem. Many car owners know that they can visit a dealer or repair shop to get help, but did you realize that you could also attempt to fix your own key fob at home?
The first thing you'll need is a brand new, fresh CR2032 battery. The majority of hardware stores sell them in multipacks. Then, use the flathead screwdriver or watch to pry open the fob case. Once you have opened the first gap, you can use your pry tool to further open the case. Be gentle, as you don't want to break the case of the fob or the circuit board that is inside.
Insert the new battery under the tabs marked with yellow arrows on this image. Be sure to place the battery over the two smaller tabs indicated by green Arrows. Close your key fob after installing the new battery and test it. If it still doesn't work then it's time to call a professional for more in-depth troubleshooting.
In rare cases replacement of the battery in a key fob can still result in a non-functional device. In this situation, there's probably something wrong with the vehicle or the fob. It's a good idea keep an extra key fob on hand so you can be ready if the original battery dies or another problem strikes.
You can also request a professional to carry out other repair services for your key fob. They can inspect for damage to buttons, contacts and other parts and perform reprogramming and synchronization in the event that the vehicle is having a hard communicating with your key fob.
Damaged Key Fob Battery
Most key fobs rely on small batteries to power their internal components, which include buttons that trigger the chip and antenna to emit a radio frequency. The battery also powers the plastic casing which protects these components. If the battery fails the key fob won't work. The solution is easy and cheap to replace it. In their owner's manual most manufacturers will provide you with instructions on how to replace the key fob batteries. The process can be a little tricky but it's easy to complete and you'll likely save money by doing it yourself instead of bringing the fob into the auto shop or dealership.
If your key fob still not working after replacing the battery, you could have another issue. Check the key fob to determine whether there are physical damage, like cracks or dent. car key remote repair can also open the case to inspect the circuit board for corrosion or other issues. If you're at ease, use a cotton ball that has been dipped in alcohol to clean the contact points on the circuit board of the key fob. This will eliminate the corrosion, but not damage to the fob.
The key fobs should also be programmed so that they can connect to the vehicle receiver. This is to ensure that only keys to the same car are able to unlock the vehicle and prevent key fobs that are not designed for the vehicle from trying to open it. If you recently had your key fob repaired or replaced or if it hasn't been used for some time, the transmitter and receiver may have become disconnected.
An effective method to test this is using a spare key fob you have. This will let you know whether the issue is related to the key fob, or the electrical system of your vehicle. A mechanic can help you solve the issue by reconnecting any wires that have been disconnected. You can also try connecting the key fob to an alternative receiver to see if this fixes the problem. If you are unable to connect your key fob to a different receiver in your vehicle, you may be required to bring it to a car dealership or auto repair shop to get more specific repairs.
Key Fob Transmitter Damaged
It can be a major hassle when your car's key fob stops working. Thankfully, most car key fobs can be repaired with a few simple steps. First, look over the fob for physical damages, and make sure it's just dead. If a new battery does not solve the issue there could be a bigger issue.
Car key fobs are made up of many moving parts, and it's normal for them to undergo wear and tear over the course of time. A damaged fob transmitter can stop your vehicle from starting or opening the doors. In addition a damaged transmitter may interfere with radio signals transmitted between your key fob and receiver inside the vehicle. If you suspect that your key fob's transmitter is damaged, bring it to an expert mechanic in your area for inspection and repair.
One of the most frequent reasons that a key fob ceases working is because its batteries are dying. Key fob batteries last between three and 5 years. It is recommended to replace them regularly.
Replacing a key fob's battery is a simple task that most people can do at home. You'll need a flat-head screwdriver in order to pry the case open, and after that you'll be able to replace the battery. Most key fobs are powered by 3V button cells, that are sold in a majority of auto parts stores.
A damaged receiver may be the reason for your key fob not responding. This is a frustrating issue and usually occurs when you're driving. If your key fob doesn't appear to be receiving any signals Try placing it inside the driver's door lock.
A damaged receiver could cause your key fob to behave erratically. For example, it could lock or turn off the vehicle when you push one of its buttons. Try using a spare keyfob to see whether the vehicle responds. If you don't have an additional key fob, contact your dealer for service. In certain cases an auto dealership may be able to offer an alternative for free when your current fob is under warranty.
Key fob receiver damaged
Key fobs can have several issues. They are convenient tools that let us lock or unlock, as well as start our cars. If your remote key fob for your car isn't functioning properly, it may be time to call a locksmith or your auto dealer for help. Fortunately, many common issues with keys are easily solved without having to pay for an expensive replacement. Here are five of the most frequent reasons your key fob may not be functioning:
Key Fob Needs Re-Programming
Over time, a car's key fob receiver and transmitter can become out of sync with one and the other. To fix this problem you'll need to sync your key fob and receiver following the reprogramming instructions for your vehicle. These instructions are available in the owner's manual or contact your dealer in person for assistance.
If you are unable to solve the issue, there could be other damage or interference to your key fob or its receiver. This is usually easy to fix if you open your key fob and take a close look inside. Check for indications of damage, such as cracks in the board, tiny electronic components that aren't connected to the board, or damaged or bent battery contacts. If you find any of these, you can repair your key fob by replacing the damaged components.
The best solution for you will depend on your budget and the convenience. If your key fob was damaged by a fall or other physical damages, it may be easier and more affordable to replace it by a professional. In any case, make sure to take care of your key fob so that it can continue to provide you with years of smooth operation. By regularly cleaning it and avoiding exposure to extreme temperatures or electromagnetic fields, you can ensure it will last the longest time possible. Additionally, by selecting an expert with a lot of experience working with your particular car's model and make, you can rest assured that your key fob will always perform exactly as you intended it to.