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Car Key Repair – How to Fix a Dead Remote
Car remotes provide a wonderful convenience for drivers. They can unlock doors, open trunks, and even start the car. These remotes can stop working at the most inconvenient of times.
Before you go to the dealer, consider some quick fixes if your key fob stops working. These tips could save you money.
Keyless Entry System
Instead of fumbling around with keys in your pocket or purse, you can simply walk up to your car, push a button on the key fob, and then open the doors and start the engine. It’s a simple feature that makes driving a car more comfortable and secure. The keyless entry system, as any other device, can be damaged by repeated use or other elements. If you’ve encountered issues with your keyless entry system, there are two options: visit the dealership or contact a local locksmith.
Keyless entry systems work by sending radio signals, and then looking for the response signal on the key fob. If the system recognizes the signal, the car’s doors are not locked and the onboard computer activated. Certain systems have another receiver mounted on the trunk of the car that opens it automatically when you move your foot on it.
Each key fob is equipped with an unique digital identity code that’s assigned by the manufacturer. The fob is programmed with an exclusive process known as “programming”. This usually involves turning the car’s ignition multiple times in a particular sequence and may include pulling or pushing various levers and buttons or removing fuses.
Once a key fob has been programmed to your vehicle’s keyless entry system it transmits the digital identity code, along with a function code that tells the car what to do (lock or unlock the trunk, or open the trunk). The car’s receiver confirms the identity of the transmitter through an authentication and encryption process. If it’s authorized, the computer on board unlocks the vehicle and starts the engine.
A clever criminal could intercept and use the code transmitted between the keyfob and the vehicle. This would require a specific device to record the transmission then transmit it again in the event that the system doesn’t anticipate it. To prevent this from happening issue, the majority of keyless entry systems use a method called rolling code, which ensures that each new transmitter signal received by the car has a different counter than the previous one.
Batteries
The most frequent reason for car remotes key fobs not working is a dead battery. If you have an extra key fob, it’s a cheap and easy fix. Most fobs are powered by watches-style batteries, which can be purchased at big-box stores or hardware stores for less than $10. A quick search of the internet or your car’s owner manual should provide instructions on how to take apart your key fob and swap out the battery.
Be careful not to damage any of the circuits or antennas within the case once you’ve removed the battery. They’re likely to hold the key fob’s program to your particular car, and messing with them will render it impossible to program (and likely to fail). If you must move them, do it very gently as some key fobs come with fasteners that easily open and scatter key fob pieces all over your living room.
The case of a majority of key fobs has a single screwdriver hole. To open it, you can use a pry tool. But, to start by putting the tool along the outside edge of the case as you would peel an orange or apple. Be careful not to apply too much pressure, as the case of the key fob is generally composed of plastic and can crack or break when you exert too excessive force.
When you’re ready to replace the battery, make sure to match the size and type to your key fob. Some key fobs come with two batteries while others need one. The wrong battery could make your remote key fob useless.
After the new battery has been put installed, test your key fob once more to see if the battery has fixed the issue. If it doesn’t, you’ll need to determine whether your device has an issue that is more complex and requires a professional diagnosis and repair. If this is the case, you may need to have it reset by a dealer or purchase a replacement key fob completely.
Buttons
The buttons on your key fob are pretty tiny, and filled with delicate electronics. Therefore, it’s not surprising that they’re destined to fail from time time. The good news is that when your car’s key button stops functioning, there’s usually something you can do to fix it yourself.
One of the main reasons a car key remote doesn’t work is due to dirt or dust that has lodged between the buttons. To clear this up take care to remove both batteries and scrub each button by using a cotton swab, dipped in rubbing alcohol. Make sure to dry the batteries completely before reinstalling them.
It’s possible that the key fob was damaged in some way, possibly dropped on concrete or unintentionally scratched by something sharp. If this is the scenario, you can test the function of your key fob using another one.
key repairs near me could have stopped working in your car. This sensor is a small metal component attached to the key fob’s door lock button. It’s not common for it to fail due to weather conditions or long usage. Press your key button several times without locking or unlocking your doors. This resets the sensor.
If all else fails, you could always check the functioning of a spare key by trying to open and close your doors with it. If the spare key doesn’t work, it could be necessary to locate a 24-hour locksmith that offers auto key repair to get your remote working again.
If the car key button is working, but it’s still not locking or unlocking the vehicle, try reprogramming your computer system. Be aware that if you’ve used the same key fob for a period of time, it’s likely to need to be programmed each few months to ensure that it remains in sync with your vehicle. It’s not the most ideal solution, but it’s better than having to buy a new remote.