Keyless Remotes for Cars
Keyless remotes for cars are electronic controls for vehicles that perform the same functions as a key, except that you only have to push a button instead of actually having to put a key into the lock. Keyless remotes come in the form of a key fob or are integrated into the vehicle key's handle.
What do keyless remotes do?
Some types of keyless remotes for cars can actually start your vehicle for you, as well as unlocking or locking doors, opening the trunk, etc. These devices are just about standard on most cars these days, and were first seen in the U.S. in 1989, on select General Motors vehicles. They normally get their power from batteries inside the remote.
Today's models also have buttons to let you open and close windows, or have a panic button that can set off an alarm if the driver has a problem. There are even car models that have a special sensor in the keyless remote that prevents you from accidentally locking your keys in the car!
How do keyless remotes work?
The way they work is by sending a radio signal to a receiver located in the vehicle that activates the lock or other device and makes it function. The original keyless remotes worked by infrared signal until it was switched over to a radio signal.
Security is indeed a huge issue when it comes to keyless remotes for cars, because if someone could open cars other than their own with their remote, then they could easily steal someone's vehicle. To foil this possibility, these keyless remotes are also encrypted, so that a car thief can't trick the vehicle into starting or opening by other means than the legitimate keyless remote.
If a car owner loses his keyless remote, he will have to buy one made for his vehicle and get it re-coded and set to work with his car or truck. Due to the special needs of each keyless remote to be able to work with a specific vehicle, they are expensive to replace and usually cost more than $100 for each key or fob.
Each vehicle will have its own codes so that people can't just get into another person's vehicle with the same brand of keyless remote. On occasion, the owner may have to reprogram an old remote if they changed the batteries and somehow managed to cause it to dump all of the information that was stored on it.
There have been limited timeframes in the past when outside signals would cause a car's keyless remote to stop functioning due to some sort of interference, but the remotes of today are more sophisticated and that seldom happens with newer remotes. They are considered to be very convenient by all car and truck owners.
The bottom line is that today, most cars and trucks have the convenience of a keyless remote to operate many of its components from the windows, trunk, lights and doors, and in some cases even starting up the engine so that you can stay warm on chilly mornings while your car's interior and engine warm up.
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