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Car Key Repair – How to Fix a Dead Remote
The car remotes are a great convenience for drivers. They can unlock doors, open trunks, and even start the car. But, these remotes sometimes cease to function at uninviable times.
Before you head to the dealer, consider some quick solutions when your key fob stops functioning. These tips could save you money.
Keyless Entry System
Rather than needing to fumble around with keys in your pocket or purse Instead of fumbling around with keys in your purse or pocket, you can stroll up to your car, hit a button on your key fob and then unlock the doors and start the engine. It’s a convenient feature that has made the experience of driving a car more enjoyable and more secure. However, just like any other device that has a keyless entry system, the keyless entry system can be damaged by repeated use or because of other reasons. If you have problems with yours, you can either go to the dealer or contact a locksmith.
A keyless entry system operates by sending radio signals, and then looking for the response signal on the key fob. If the system is able to recognize the signal, the vehicle’s doors are unlocked and the onboard computer is activated. Some systems have a second transmitter on the trunk of the car that can be opened when you put your foot beneath it.
Each key fob comes with an unique digital identity code that’s issued by the manufacturer. A specific process of technology called “programming” is used to set the fob up with the car’s specific system. This requires turning the ignition of the vehicle repeatedly in a certain sequence. It may also require pushing or pulling levers or buttons or removing the fuse.
Once the key fob is programmed into your car’s keyless system, it transmits a digital identification code as well as a function-code to tell the car what to (lock the trunk, unlock it or open the trunk). The receiver on the car verifies the transmitter’s identity through an authentication and encryption process. The computer in the car will unlock the vehicle and start the engine if it’s authorized.
There are concerns that a criminal with a sly approach could intercept the code transmitted between the key fob and the car. This would require a special device to record the transmission then transmit it again in the event that the system doesn’t anticipate it. The majority of keyless entry systems employ a rolling code method to combat this. This ensures that each new transmitter signal received by a vehicle has a counter value that is different from the previous one.
Batteries
The most frequent cause of the car remote key fob not working is an inoperative battery. It’s an easy and cheap fix if you have a spare key fob on hand to replace the old one with. Fortunately, most fobs utilize standard watch-style batteries that are sold at big-box stores or hardware retailers for as little as $10. A quick search on the internet or in your vehicle’s owner’s manual should give you instructions on how to take apart your key fob and swap out the battery.
After you’ve removed your battery, be sure not to disturb any of the circuits or antennas in the case. They’re likely to be holding the key fob’s programming to your car’s specific model and tampering with them will render it unprogrammable (and most likely not work). If key repair near me must move them, do so very gently, as certain key fobs have fasteners that can easily open and scatter key fob components throughout your living space.
Most key fobs have one hole that allows an screwdriver or similar tool to open the case, but it’s best to use your tool to wedge it around the outside of the case first, like you would peeling an apple or orange. Do not apply too much pressure, since the case of the key fob is typically made of plastic and may break or crack if you apply too much force to it.
Make sure you match the size and style of the battery to your key fob when replacing it. Some key fobs come with two batteries, while others only require one. A bad battery could make your remote key fob useless.
If the issue persists it is possible to try again with your fob’s key after installing the new battery. If it doesn’t work you’ll be required to determine if your fob is experiencing an issue that is more complicated and requires a professional diagnosis. If this is the case, you may need to have it reprogrammed by a dealer, or you may need to buy a replacement key fob altogether.
Buttons
The tiny buttons on your key fob are small, and are packed with delicate electronic components. So it’s not too surprising that they’re likely to fail from time time. If the car key button suddenly ceases to function, you can generally fix it yourself.
One of the most common reasons a car key remote doesn’t work is due to dirt or dust that has accumulated between the buttons. To clear this up, carefully remove both the batteries and scrub each button by using a cotton swab, that has been dipped in rubbing alcohol. Make sure you dry the batteries completely before reinstalling them.
It’s possible that the key fob was harmed in some way, possibly dropped on concrete or accidentally damaged by something sharp. If this is the situation, you can check the functionality of your key fob by using a different one.
The door lock sensor may have stopped working in your car. It’s a tiny metal piece that is connected to the key fob’s door lock button. It is not uncommon for it to break due to weather conditions or prolonged use. Press your key button several times without locking or unlocking your doors. This resets the sensor.
If nothing else works, you can always test the function of a spare key by unlocking and locking your doors with it. If the spare key doesn’t work, it may be necessary to find an 24 hour locksmith that can offer car key repair to get your remote operating again.
If the car key button does work, and it’s still not locking or unlocking your vehicle, you may try to reprogram your computer system. But keep in mind that if you’ve used 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 ideal, but it is better than having to buy another remote.