Car Key Repair - How to Fix a Dead Remote
Car remotes are an excellent convenience for drivers. They can unlock doors, access trunks, and even start the engine. But, these remotes sometimes stop working at inconvenient times.
Before you go to the dealer, consider some quick solutions in case your key fob isn't working. These tips could save you money.
Keyless Entry System
You don't have to look for keys in your pockets or purse. Just walk to your vehicle, press the button on the keyfob and the doors will unlock and the engine will start. It's a convenient feature that has made the experience of driving a car more enjoyable and more secure. The keyless entry system, just like any other device, can be damaged through repeated use or other elements. If you've encountered issues with your keyless entry system, there are two options: visit the dealership or contact an emergency locksmith in your area.
Keyless entry systems work by sending radio signals, and then looking for the response signal from the key fob. If the system is able to recognize the signal, the vehicle's doors are not locked and the computer on board is activated. Certain systems include a second transmitter on the trunk of the car which opens it when you waggle a foot under it.
Each key fob comes with a unique digital identification code that is given by the manufacturer. A specific process of technology called "programming" is used to set the fob up with the car's specific system. This usually involves turning on the ignition of the car multiple times in a particular sequence, and could also require pulling or pushing various levers and buttons or removing fuses.
Once a key fob has been programmed into the keyless system of your car, it transmits a digital identity code as well as a function-code to instruct the car to (lock the trunk, unlock it or open the trunk). The receiver on the car checks the authenticity of the transmitter by an authentication and encryption process. If it's authorized the onboard computer unlocks the vehicle and begins the engine.
There are concerns that a criminal with a sly approach could intercept the code that's transmitted between the key fob and the car. This requires a device that records the transmission and then transmits it again when the system doesn't expect it to. To prevent this from happening, most keyless entry systems rely on the rolling code method, which ensures that each new transmitter signal received by the car has a different counter value than the previous one.
Batteries
A dead battery is the most common reason for a car remote to not function. It's a simple and inexpensive fix if you have another key fob at hand to replace the old one with. Most fobs are powered by watches-style batteries, which can be bought at big-box stores or hardware stores for less than $10. A quick search on the internet or your vehicle's owner manual should provide instructions on how you can disassemble your key fob and replace the battery.
After you've removed the battery, make sure not to disrupt any of the circuits or antennas in the case. They are likely holding the key fob's programming to your specific car, and messing with them will render it impossible to program (and likely to fail). If you have to move them, do it slowly because some key fobs come with fasteners that easily pop open and scatter key fob parts all over your living room.
Most key fobs come with one hole that allows an screwdriver or similar tool to open the case. However, it's a good idea wedge your pry tool around the outside of the case first, like you were peeling an apple or orange. Be careful not to apply too much pressure, since the case of the key fob is typically constructed of plastic and could break or crack if apply too much force to it.
Make sure you match the size and type of battery to your key fob when you replace it. Certain fobs require two batteries, whereas others have only one. The incorrect battery could render your key fob remote useless.
Once the new battery is in place, test your key fob once more to see if it solves your problem. If not then you'll need to figure out if your fob has an issue that is more complex and requires a professional diagnosis and repair. It could be necessary to have the key fob reprogrammed by a dealer or buy a new one.
Buttons
The buttons on your key fob are small, and they're packed with delicate electronic components. It's not a surprise that they will occasionally fail. If your car key button suddenly ceases to function, you can generally fix it yourself.
The most common reason that a car remote stop functioning is due to dirt or crud has gotten stuck between the buttons. To remove this obstruction take care to remove both batteries and clean each button with a cotton swab coated with alcohol rubbing. Be sure to dry them completely before reinstalling the batteries.
key repairs near me that your key fob has been damaged in some way, like being dropped on concrete or accidentally scratched. If this is the scenario, you can test the functionality of your key fob by using another one.
The door lock sensor might have stopped working in your car. This is a tiny metal piece that is attached to the door lock button on your key fob, and it's not unusual for the sensor to break after long use or exposure to extreme weather conditions. Press your key button a few 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 unlock and lock your doors using it. If the spare key doesn't work, you may have to contact a 24-hour locksmith who provides repair of car keys to get your remote working again.
If your car's key fob is working, but it's still not locking or unlocking the vehicle, you may try reprogramming your computer system. However, keep in mind that if you've had the same key fob for some time, it's going to need to be programmed each few months to ensure it remains in sync with your vehicle. It's not the most ideal solution, but it's better than having to purchase a new remote.