broken key repair take a beating. Buttons can get stuck or break, depending on how they are stored and how often they are jostled.
Fortunately, the majority of issues with key fobs are simple to solve. However, some issues are more serious and require assistance from a professional. Locksmiths can be a huge help in these cases.
Dead Fob Battery
The key fobs for cars are quite intelligent, but that does not mean that they don't occasionally get stuck on the "not responding zone". When this happens, it's usually time to replace the battery. This doesn't solve the problem because it could be due to an issue with the connection on one of the terminals on the battery connector.
The car makers are aware of the possibility of a issue, and frequently add a second mechanical key in the fob for use in an emergency. To gain access to this, find the small release switch or latch behind the fob (check the user's manual for more details). By pressing this, you will be able to unlock the fob and gain access to the physical key, which you can use to unlock your car.
Another sign that your fob's batteries are dying is that you have to be a lot closer to your car to open and lock it than before. This is due to the fact that the fob's transmitter weakens as its battery ages and limits the range of operation.
It's relatively simple to replace the battery. Make sure you purchase a button cell battery (which looks like a tiny silver coin) to replace your fob, and follow the user manual or video instructions on how to take out the old one. Replace the battery in the exact direction as the original one (the positive side facing upwards toward the buttons). Test the lock/unlock function, and begin the functions of the fob after reassembling it to ensure the new battery is placed correctly.
Certain key fobs may be a little tricky to open, but you should be able to do it by placing the latch, switch, or screw on the back of the fob and then prying it open. Be careful not to break the fob, since you'll need it to operate your car! You could also take the fob to a professional in case you're not comfortable making the change yourself. Many auto shops will change the battery of a fob for a small fee, since it's such a common repair service. Some dealers might even offer it for free dependent on the model and brand of your vehicle.
Fob not working
Replace the batteries in your key fob if it isn't working. This is the easiest fix and most likely what will solve the issue. If your fob still isn't working after changing the battery it could be due to damage.
Damage can occur to your car's key fob due to a variety of reasons, including physical trauma, exposure to water or a corroded circuit board. These issues could stop your key from communicating with the car's receiver which can then stop your car's doors and/or ignition from unlocking or turning on. You may have to have a professional replace your fob if it is damaged.
The buttons on your device may have worn out over time with repeated use. The rubber can wear away and make the buttons less springy or 'clicky' and may begin to fail to register your pressing accurately. You can try wiping the buttons and adjusting them to see if this resolves the issue however, it's best to take the fob to a professional examined for more comprehensive repairs.
You should also double check that the new battery you're using is a exact match for your fob. You can find a list of compatible batteries online or in most hardware stores. You must always refer to your owner's manual or the engraving on the inside of your fob to determine which type of battery it needs. If the battery is not the correct fit, it may have issues transmitting strong signals or providing sufficient power to internal components.
In the rarest of cases, it could be that the issue isn't with your key fob but rather with the vehicle's receiver or electronic components. You can test this by using an actual key to open the door, and then trying to start your car using the inductive backup system (if there is). If the physical key you have isn't able to open or start your vehicle, have a mechanic inspect the electronic and receiver components of your car to see whether they're functioning properly.

Fob that is damaged
A key fob is made up of many components that function together and a single malfunction can cause other parts to fail. If a keyfob stops working it is important to look for obvious causes such as cracked casings or a damaged part. It's also crucial to examine other components of the vehicle like the lights and horn to determine whether those are working normally.
If the key fob is damaged, you should obtain a replacement from your dealership or an auto locksmith instead of trying to repair it. It may be necessary to reset the fob to connect to your car. This is not something you can do at home, and requires specialized equipment.
Over time, the contacts on the buttons of a key fob may wear out. This is more likely when you drop the device or leave it in hot weather.
Over time, the internal wiring in the key fob could get worn out. This can result in the button not working when it is pressed, or is functional when it is pressed extremely hard. It could also result in the car not opening or locking when the fob is pressed.
mobile car key repair come with the cover in plastic, which can be removed and cleaned with soap and warm water. This is a great way to help restore a key fob's its original function and it's a great idea to do it often to prevent dirt from harming the insides.
A damaged battery is the primary reason why the key fob won't turn on or work. Many mechanics and car dealers can replace the batteries quickly but if you're at ease doing it yourself you can buy a battery at a hardware store or big-box retailer and follow instructions in your owner's manual or on YouTube to install it.
The most likely scenario is that the key fob is damaged internal damage, for example cracks within the case, tiny electronic components that are not fully connected to the circuit board or bent or corroded battery contact points. If any of these is the situation, it's a good idea to speak with an auto locksmith or the dealer for a recommendation on a replacement and help in programming it to your vehicle.
Fob Is Not Programming
The car key fob is a convenient method to start your engine and unlock the doors of your vehicle. When they stop working or fail to function, they can be frustrating. In some cases the problem can be resolved by replacing the battery. In other situations it may require a more intricate repair. The first step is to identify the reason why the fob isn't working correctly.
One of the main reasons for a malfunctioning fob is that it no longer recognizes your vehicle. This can happen when the connection between your remote and the car is broken. The connection can be restored without the need for costly key fob repair.
When the key fob is not sending a strong signal, other issues could be experienced. This could be the result of a key is damaged or the battery is dead. In either case, you should try to resync the key with your vehicle. This can be done by following the instructions that came on the key fob. It's also an excellent idea to keep a spare key with you in case you need to make use of it in the case that your primary key isn't working.
The fob might not be receiving an adequate signal from the vehicle. This could be due to a weak battery in the car, interference from wireless devices or a problem with the antenna. By using a remote tester you can test the fob and determine if it's the issue. If the tester doesn't blink when you press any of the buttons, it could be that the battery is in need of replacement or that the fob has been damaged.
An immobilizer on your car may prevent a fob from sending out a strong signal. This could happen when your key fob hasn't been properly programmed or there is a software problem.
If you are unable to fix the fob or it isn't worth the effort to repair it, you should purchase an entirely new one. There are low-cost options from many online retailers and some are even delivered to your door.