Key Fob Repair Service - 5 Common Reasons Your Key Fob Won't Work
It can be a traumatic experience when your key fob breaks down. Fortunately, car key and repair of fob problems aren't too serious or complex and can be resolved at home or by an auto locksmith near you.
The first step is to examine the key fob for physical damage and an unresponsive battery. You can then reset the fob by following the instructions provided in your owner's manual.
Dead Key Fob Battery
With a key fob, you can open and start your vehicle without having to fiddle around with your keys. Many models unlock doors, trunks, and hatchbacks with pressing a button. While a dead key fob battery may seem like a huge problem, it's actually one of the most simple issues to solve. Most car owners know that they can visit a dealership or repair shop to get help but did you know that you can also try to fix your own fob at home?
You'll require a brand-new CR2032. You can buy them in a multipack at many hardware stores. Then you can use a watch or flathead screwdriver to pry the case of the fob. Once you've opened the first gap then you can use your pry tool to open the case. Be gentle since you don't want to damage the fob or its circuit board.
The new battery should be placed under the tabs that are marked with yellow arrows on this image. Make sure it's between the two smaller tabs highlighted by the green arrows. After the new battery is in place, close up your key fob, and then test it. If the key fob does not work, you may need to contact an expert for more detailed troubleshooting.
In rare cases, replacing the battery in a key fob can still result in a non-functional device. If this happens, it's a sign that there's a problem with the fob or the vehicle itself. It's a good idea to keep an extra key fob in hand so you can be prepared if the battery of your original fails or a different issue occurs.
You may also ask a professional to perform other repair services for your key fob. They can check for damage to buttons or contacts as well as other components and do reprogramming and synchronization if the vehicle is having a hard time communicating with your key fob.
Key Fob Battery Damage
The majority of key fobs are powered by a small battery, which powers the internal components. This includes the buttons that turn on the antenna and chip for releasing a radio frequency. The battery also powers the plastic casing that protects these components. If the battery fails, your key fob won't work. Fortunately, the solution is simple and inexpensive simply replacing it. In the owner's manual of their product, many manufacturers provide instructions on how to replace key fob batteries. It's not difficult to do and you can save money by doing it on your own instead of taking the fob to an auto or dealer shop.
You may have a different problem if your key fob doesn't work after replacing the batteries. Examine the key fob to determine if there are any physical damage, like cracks or dent. You can also check the circuit board by opening the case. If you're at ease, you can make use of a cotton ball that has been coated with rubbing alcohol to clean contact points on the circuit board of the key fob. This will eliminate corrosion without causing any damage to the fob.
Key fobs also need to be programmed to connect to the receiver of the vehicle. This is done to ensure that only the keys to the same vehicle can unlock the vehicle and to make sure that key fobs not designed for the vehicle from opening it. If you have recently had your keyfob repaired or replaced or if it's been unoccupied for a long time the transmitter and receiver may have become disconnected.
You can test this using a spare remote control that you own. This will tell you 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 with another receiver and see if this fixes the problem. If you are unable connect your key fob to a different receiver in your vehicle, you may need to take it to a car dealership or auto repair shop for more specific repairs.
Damaged Key Fob Transmitter
If your car's key fob stops working, it can be a major issue. Most car key fobs are repairable by following a few easy guidelines. Examine the fob to determine whether it's got any physical damage and make sure that it's not dead. A new battery could be all that's needed but if it's not enough to solve the issue, it may be a bigger problem with the fob transmitter.
Car key fobs contain lots of moving parts, which is why it's not unusual for them to experience some wear and tear over the course of time. A damaged transmitter for your key fob could stop your vehicle from starting or from unlocking the doors. In addition a damaged transmitter may interfere with radio signals transmitted between your key fob and the receiver inside the vehicle. If you suspect your key fob's transmitter is damaged, bring it to a local mechanic for an inspection and repair.
One of the main reasons a key fob stops working is that its batteries are dead. Key fob batteries generally last between three and five years, so it's a good idea to buy new ones on a regular basis.
The majority of people can replace the battery in the case of a key fob in their home. All you require is a screwdriver with a flat head to break open the case, and then you can replace the old battery with a brand new one. The majority of key fobs utilize 3V button cells that are readily available at many auto parts stores.
A malfunctioning receiver could be the cause of your key fob not responding. This can be a very frustrating issue, as it usually occurs when you're driving. If you find that your key fob isn't getting an alert from your vehicle, try placing it in the driver's door lock.

A damaged receiver could cause your key fob to act in a strange manner, for example, turning off or locking the vehicle when you press one of its buttons. If you have a spare key fob, you can try using 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 service. If your current key fob is in warranty, a few dealerships selling new cars may be able to offer a replacement for free.
Damaged Key Fob Receiver
Key fobs can have several issues. They are convenient tools that allow us to lock and unlock our cars. If the remote key fob for your car isn't functioning properly it's likely that you need to contact a locksmith or an auto dealer. Fortunately, a lot of common problems with key fobs can be easily resolved without having to shell out for a costly replacement. Here are five of the most common reasons why your key fob may not be working:
Key Fob Needs Re-Programming
Over time, a car's key fob receiver and transmitter could be out of sync with one and the other. In order to resolve this issue, you'll need to re-sync the key fob with its receiver by following instructions for reprogramming your car. These instructions are available in your owner's guide or contact your dealer in person for assistance.
If reprogramming your keyfob can not resolve the issue, there might be a problem or an interference with your keyfob or receiver. Luckily, this is often simple to repair by opening your key fob to take a closer view of the inside. Check for signs of damage, such as cracks in the board tiny electronic components that aren't attached to the 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 solution for you depends on your budget and convenience. If your key fob is damaged or has been dropped, it could be more economical to replace it by a professional. In any case, be certain to take care of your key fob to ensure it will continue to provide you with years of smooth operation. By cleaning it regularly and avoiding exposing it to extreme temperatures or electromagnetic fields, you can ensure it will last the longest time possible. Furthermore, by selecting an expert who has plenty of experience working with your particular vehicle's make and model you can be sure that your key fob will function exactly as it was intended to.