Key Fob Repair Service
Key fobs can be damaged. Based on the way they're stored and how often they get jostled, their buttons can get stuck or damaged.
Most key fob problems are simple to fix. However, there are some that are more complicated and will require professional help. A locksmith can be of great help in these situations.
Dead Fob Battery
Car key fobs are quite smart however that doesn't mean they don't occasionally get stuck in the "not responding" zone. When this happens, it's usually time to replace the battery. This won't fix the issue because there could be a bad connection at one of the terminals on the battery connector.
The car manufacturers are aware of the possibility of a problem, and they often install an extra mechanical key inside the fob for use in the event of an emergency. It is accessible by finding the small release button or latch that is located behind the fob. (Check the user's manual to find out more). Pressing this button, you can open the fob to reveal a key that you can use to unlock your car.
Another indication that your fob's battery is dying is the fact that you have to be much closer to the car to unlock and open it than before. The transmitter of the fob loses energy when its battery is depleted. This reduces its range.
Replacing the battery is straightforward and relatively inexpensive. You'll need to purchase the button-cell battery (which looks like the size of a small silver coin) and follow the directions in the user manual to remove the old battery. Replace the battery in the exact direction as the old one (the positive side facing upwards toward the buttons). Test the lock/unlock function, and start the functions of your fob after reassembling it. Make sure the new battery is installed correctly.
Some key fobs can be difficult to open however, you should be able to do it by finding the latch, switch or screw on the back of the fob and then prying it open. The fob will need to work with your vehicle, so make sure not to damage it! You could also take the fob to an expert if you are not comfortable doing it yourself. Because it's a standard procedure, most auto shops will swap the battery inside fobs for a minimal charge. Some dealers might even be willing to do it for free depending on the model and year of your car.
Fob Isn't Working
Replace the batteries if the key fob isn't working. This is the easiest solution and can fix the issue. If your fob is still not working after a change of battery, it may be due to damage or another issue that requires attention from a professional.
Damage can occur to your car's key fob for many reasons, including physical trauma, water exposure or a corroded circuit board. These issues can stop your key from sending the signal to the receiver inside your vehicle, which will then prevent your car's ignition or doors from opening. If your fob is damaged it's likely that you'll require an expert to replace the component or the entire device.
The buttons on your fob could have worn out with repeated use. The rubber can wear out and cause the buttons to become less responsive or clicky and may begin to fail to register your pressing accurately. You can try wiping the buttons and then adjusting them to see if this resolves the problem however, it's recommended to send the fob to have it professionally examined for more comprehensive repairs.
Check that the battery you're using is the right one for your fob. You can find a list on the internet or in a majority of hardware stores. Check the owner's manual or the engraving on your fob for further details. If the battery isn't the right one for your needs, it may have issues transmitting strong signals and providing enough power to internal components.
In very rare cases it could be the case that the issue isn't with your key fob, but rather the vehicle's receiver or electronic components. You can test this by using the physical key to open the door, and then trying to start your vehicle using the inductive backup system (if available). If the physical key you have isn't able to open or start your vehicle check with a mechanic the receiver and electronic components of your vehicle to determine whether they're working properly.
Fob that is damaged
A key fob is made up of many parts that are interconnected and a single failure could cause other parts to fail. When a key fob stops functioning, it's vital to determine whether there's a clear cause like a damaged or cracked case, or a malfunctioning internal component. Examine the horn, lights and other parts of the vehicle to make sure they are functioning correctly.
If the key fob is damaged, it's best to get a replacement from your dealer or an auto locksmith instead of attempting to fix it. It may be necessary to reprogramme the fob for the car. This is not something you can do at home, and requires special equipment.
The buttons on a key fob make use of contacts to transmit signals to the circuit board on the key fob, but these can wear down over time. This is particularly true if the device is dropped or left in hot temperatures.
Over time, the internal wiring in the key fob could become worn down. This could lead to the button not working when it's pressed or only working when it's press extremely hard. It could also cause the car not opening or locking when the fob is used.
Most key fobs come with an outer cover made of plastic that can be removed and cleaned with soap and warm water. This can bring a keyfob back to its original purpose. It's also a good idea for you to do it regularly to prevent dirt from damaging the inside.
A bad battery is usually the reason the key fob will not turn on or work. Many mechanics and dealers can replace the battery quickly. If you're comfortable with the installation and are able to do it yourself, you can purchase the new one from the big-box or hardware store and follow the directions on YouTube or in your owner's guide.
The worst-case scenario is that the key fob has internal damage, such as cracks in the case, teeny electronic components that aren't fully attached to the circuit board or corroded or bent contact points for batteries. If you find any of these issues, you should consult an auto locksmith or a dealer to obtain a new key fob and help in programming it for your vehicle.
Fob Isn't Programming
Car key fobs are a convenient convenience that allows you to unlock your car doors and begin the engine. They can also be a source of frustration when they stop working or seem to be working intermittently. In some instances, the problem may be as simple as replacing the battery, however, in other instances, it could involve a more complicated repair. The first step is determining the reason for why the fob isn't functioning correctly.
One of the most frequent causes of a malfunctioning fob is that it is no longer able to recognize your vehicle. This can happen when the connection between your remote and your car is broken. The connection can be restored without the need for an expensive key fob repair.
Other issues could arise when the key fob no more sends a strong signal. This could be the result of a key has been damaged or if the battery is dead. In either situation, try to resync the key with your vehicle. This can be accomplished by following the instructions that came by the key fob. You should also keep a spare car key in the event that your primary key fails.

It's also possible that the fob doesn't receive a strong enough signal from the car. This could be due to an insufficient battery in the car or interference from wireless devices, or an antenna issue. By using a remote tester you can test the fob to check if it's the cause of the issue. If the tester doesn't illuminate when one of the buttons is press, the battery might need to be replaced or the fob may be broken.
Related Homepag why the fob not transmitting a strong enough signal is that the immobilizer system in your car is preventing it from doing so. This could happen if the key fob isn't programmed correctly to your vehicle, or in the event of an issue with the software.
If you are unable to fix the fob or it isn't worth the effort to repair it, you need to purchase an entirely new one. There are low-cost options from many online retailers, and some of these can be delivered directly to your door.