Key Fob Repair Service - 5 Common Reasons Your Key Fob Won't Work
The loss of your key fob down is an unpleasant situation. Most fob problems can be solved at home by an auto locksmith or aren't urgent.
The first step is to examine the fob's keypad for physical damage and dead batteries. Then, you can reset the fob following the instructions provided in your owner's manual.
Dead Key Fob Batteries
With a key fob you can open and start your vehicle without having to fiddle around with your keys. Some models even unlock hatchbacks, doors and trunks at the touch of the button. Although the battery of your key fob is dead, it could be a huge inconvenience, it's actually one of the easiest problems to solve. Most car owners know that they can visit a dealer or repair shop for assistance, but did you realize that you could also attempt to fix your own fob at home?
You'll first require a brand-new CR2032. The majority of hardware stores sell them in multipacks. Then make use of an flathead screwdriver or watch to pry the case of the fob. Once you've opened the first gap then you can make use of your tool to open the case. It's best to be gentle; you don't want to break the fob's case or the circuit board within.
Once you've got your case open, put the new battery underneath the tabs that are highlighted by yellow arrows in this image. Make sure to place the battery over the tabs smaller than those highlighted by green Arrows. Close your key fob after you have installed the new battery and test it. If the key fob still does not work, you may require the assistance of an expert for more detailed troubleshooting.

In rare cases replacing the battery on a key fob can still result in a malfunctioning device. If this happens, it's a sign that something is wrong with your fob or the vehicle itself. It's a good idea keep a spare key fob on to be ready if the original battery dies or another problem strikes.
In addition to battery replacement, you can also ask an expert to examine and make any other key fob repairs. They can look for damaged buttons or contacts, as well as other parts. They can also do reprogramming or synchronization, in the event that your vehicle is having issues communicating 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 chip and antenna for releasing the radio frequency. The battery also powers the plastic casing that protects these parts. If the battery is dead the key fob won't work. Fortunately, the solution is simple and inexpensive to replace it. Many manufacturers have directions in their owner's manuals on how to replace the battery of the key fob. The procedure isn't easy but it's not hard to do and you'll likely save money by doing it yourself instead of bringing the fob into the auto shop or dealership.
You may have a different problem if your key fob still does not function after replacing the batteries. Examine the key fob to determine whether there are physical damage, like cracks or dents. You can also examine the circuit board by opening the case. If you're confident doing this, you can make use of a cotton swab that has been coated with rubbing alcohol to clean the contact points on the key fob's circuit board. This will get rid of the corrosion, but not damage to the fob.
The key fobs must also be programmed so that they can connect to the vehicle receiver. This is done to ensure that only those who have keys for the same vehicle can unlock the car, and to prevent other key fobs from trying to gain access to vehicles they weren't designed for. If you have recently had your key fob repaired or replaced or if it's been unused for a while the transmitter and receive may have become disconnected.
You can test this by using a spare remote control that you own. This will let you know whether the issue is related to the key fob or with the electrical system in your vehicle. A mechanic can assist you to solve the issue by reconnecting any disconnected wires. You could also try connecting the key fob to a different receiver and check if that fixes the problem. If you are unable to connect your key fob to another receiver in your vehicle, you may need to take it to a dealership or auto repair shop for more detailed repairs.
Key Fob Transmitter Damaged
If your car's key fob fails to function, it can be a major inconvenience. Thankfully, most key fobs for cars can be repaired with just a few steps. Check the fob to see if it has any physical damage and ensure that it's not dead. A new battery might be all that's needed, but if it doesn't fix the problem, there could be a more serious problem with the fob transmitter.
Car key fobs have many moving parts, so it's not unreasonable for them to undergo wear and tear over the course of time. A damaged fob transmitter can prevent your vehicle from starting or opening the doors. Additionally the damaged transmitter could affect the radio signals that are sent between your key fob and the receiver inside the vehicle. Bring your key fob to a technician to be repaired and inspected when you suspect that the transmitter is damaged.
One of the main reasons that a key fob ceases working is that its batteries are dying. Key fob batteries usually last between three and five years, so it's recommended to purchase fresh ones on a regular basis.
The replacement of a key fob's battery is a relatively simple process that most people can do at home. You'll require a flat-head screwdriver in order to pry the case open. Once you have it opened, you'll be able to replace the old battery. Most key fobs are powered by 3V button cells that are available at most auto parts stores.
how to repair car key fob that your key fob may not be responding is because it has an ineffective receiver. This is a frustrating issue and usually occurs when you're driving. If you find that your key fob doesn't receive a signal from the vehicle, try placing it inside the driver's door lock.
A damaged receiver could cause your key fob to act erratically, such as by turning off or locking the vehicle when you press one of its buttons. If you have an extra key fob, try using it to see if it is able to respond to the vehicle's commands. If you don't have an additional key fob, call your dealer for assistance. If your current key fob is still in warranty, a few new-car dealers might be able to provide a replacement at no cost.
Damaged Key Fob Receiver
Key fobs are fantastic convenience tools that let us lock, unlock, and start our automobiles, they are susceptible to a range of issues. If the remote key fob in your car isn't functioning properly, you may need to call a locksmith or an auto dealer. Most common problems with key fobs can be fixed without the need to purchase an expensive replacement. Here are five of the most commonly-cited reasons your key fob may not be working properly:
Key Fob Needs Re-Programming
Over time, a car's key fob transmitter and receiver may get out of sync with one and the other. To fix this problem, you will need to sync the key fob with its receiver by following instructions for reprogramming your vehicle. These instructions are available in the owner's manual or contact your local dealer for assistance.
If you are unable to solve the issue, there could be a different cause of damage or interference to your key fob or its receiver. Luckily, this is often 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, tiny electronic components that aren't connected to the circuit board, or bent or the battery contacts are oxidized. Repair the key fob if you spot any of the above.
The best option for you depends on your budget and convenience. However, if your key fob has been damaged by a fall or various physical harms it could be simpler and more affordable to replace it by an expert. In any event, make certain to take care of your key fob so that it can give you years of trouble-free operation. By regularly cleaning it and avoiding exposure to extreme temperatures or electromagnetic fields, you can ensure that it will last the longest time possible. Furthermore, by selecting an expert who has plenty of experience working with your particular car's model and make, you can rest assured that your key fob will always work exactly as intended.