Key Fob Repair Service - 5 Common Reasons Your Key Fob Won't Work
A key fob that breaks down is a frustrating situation. The majority of fob issues can be resolved at home by an auto locksmith, or aren't important.

The first step is to examine the fob's keypad for physical damage as well as 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 start and unlock your vehicle without fumbling around with your keys. A lot of models unlock doors, trunks, and hatchbacks with pressing the button. Although the battery for your key fob has died could be a huge problem, it's actually one of the easiest problems to solve. You can take your vehicle to an auto repair shop or dealership for help. But did you know that you could fix your fob on your own?
You'll require a brand new CR2032. You can purchase them in a multipack at many hardware stores. Then, use the flathead screwdriver or watch to pry the case of the fob. Once you have opened the first gap and you're ready to use your pry tool to open the case. Be gentle in order not to damage the fob or its circuit board.
Insert the new battery under the tabs indicated by yellow arrows in this photo. Make sure it's past the two smaller tabs highlighted by the green arrows. Close your key fob after you have installed the new battery, and then test it. If the key fob does not work, you may require the assistance of an expert for more thorough troubleshooting.
In rare instances, replacing a battery in a keyfob can still result in a device that isn't functioning. If this happens, it's likely that something is wrong with your fob or the vehicle itself. Keep a spare keyfob on hand to be prepared in case the battery dies, or if another problem arises.
You may also ask a professional to perform other repair services for your key fob. They can inspect for damages to buttons, contacts and other parts, as well as do reprogramming and synchronization if the vehicle is having a hard communication with your key fob.
Damaged Key Fob Battery
The majority of key fobs are powered by a tiny battery that powers the internal components. This includes the buttons that trigger the antenna and chip to release a radio frequency. The battery also powers plastic casings that protect the components. If the battery is dead the key fob will not work. The solution is easy and cheap to replace it. A lot of manufacturers provide instructions in their owner's manuals on how to change the key fob battery. It may be a bit difficult but it's not difficult to accomplish and you'll probably save money by doing it yourself rather than bringing the fob into the auto shop or dealership.
If your key fob still not working after replacing the battery, you could be experiencing another problem. Examine the key fob to determine whether there are any physical damage, like cracks or dent. You can also examine the circuit board by opening the case. If you are at ease, you can use a cotton ball dipped into alcohol to clean the contact points on the circuit board of the key fob. This will eliminate corrosion without causing any damage to the fob.
The key fobs must also be programmed so that they can connect to the vehicle receiver. This is to ensure that only persons who have keys for the same vehicle are able to unlock the car and prevent other key fobs from trying to access vehicles they weren't designed for. If you recently had your key fob repaired or replaced, or in the event that it hasn't been used for some time the receiver and transmitter could have been disconnected.
You can test this by using a spare remote control that you have. This will let you know whether the issue is related to the keyfob or with the electrical system of the vehicle. A mechanic can help fix the problem by reconnecting any wires that have been disconnected. Alternatively, you can try connecting the key fob to a different receiver in your car and see if this resolves the issue. If you're not able to do this, you might need to bring your key fob into an auto dealer or repair shop for more thorough repairs.
Key Fob Transmitter Damaged
It can be a big problem when your car's key fob stops working. Fortunately, most key fobs for cars can be repaired with just a few steps. Check the fob to see whether it's got any physical damage, and ensure that it's not dead. A new battery might be all that's needed but if it's not enough to fix the problem, there could be a more serious problem with the fob transmitter.
It's not surprising that key fobs for cars wear out over time. They have many moving parts. A damaged transmitter for your key fob could hinder your car from starting or unlocking the doors. In addition, a damaged transmitter can interfere with the radio signals that are sent between your key fob and the receiver inside the vehicle. If you suspect that your key fob's transmitter is damaged, bring it to a local mechanic for an inspection and repair.
One of the main reasons that a key fob ceases functioning is because the batteries are depleted. Key fob batteries last between 3 and five years. It's best to replace them frequently.
Most people can replace the battery on the case of a key fob in their home. You'll require an flat-head screwdriver to open the case open, and then you'll be able to replace the old battery. Most key fobs use 3V button cells that are available at most auto parts stores.
Another reason your key fob won't respond is due to an unreliable receiver. This could be a frustrating issue, since it typically occurs when you're driving. If you notice that your key fob doesn't receive any signal from the vehicle, try putting it inside the driver's door lock.
A damaged receiver may also cause your keyfob's to behave in a strange manner. For instance it may close or shut off the vehicle when you push one of its buttons. Try using an alternate keyfob to determine whether the vehicle responds. If you don't have a spare key fob, you can call your dealer for assistance. In certain cases an auto dealership may be able to provide the replacement at no cost in the event that your current fob is covered by warranty.
Damaged key fob receiver
Key fobs can be prone to many issues. They are convenient tools that let us lock, unlock and start our vehicles. If your remote key fob for your car isn't working properly it's likely that you need to contact a locksmith or an auto dealer. Most common problems with key fobs can be easily fixed without the need for an expensive replacement. Here are the five most common reasons your key fob might not be responding
Key Fob Needs Re-Programming
As time passes the receiver and transmitter of a car key fob can become out-of-sync. To fix this problem, you'll need to re-sync your key fob and receiver following the reprogramming guidelines for your car. These instructions are available in the owner's manual, or contact your dealer in person for assistance.
If the re-programming of your key fob fails to resolve the problem, there may be other issues or interference to your key fob, or its receiver. Luckily, this issue is simple to repair by opening your key fob to get a closer inspection of the inside. Look for indications of damage, such as cracks in the circuit board, teeny electronic components that aren't attached to the circuit board or bent or damaged battery contacts. Repairing the key fob if you find any of the above.
The best option for you depends on your budget and convenience. If how to repair car key fob is damaged or dropped, it could be more economical to have it replaced professionally. In any case, you must take good care of your key fob to ensure it continues to work smoothly for many years. By regularly cleaning it and avoiding exposing it extreme temperatures or electromagnetic fields, you can ensure that it will last for as long as possible. Furthermore, by selecting an expert with a lot of experience with your specific car's model and make you can be sure that your key fob will function exactly as it was intended to.