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What is a Smart Key Car Key?

Also known as keys that are in proximity Key fobs, proximity keys, or remote keys, smart fortwo key replacement keys can be used to unlock doors and start engines without the driver having to insert the physical key. They communicate with each other by using radiofrequency signals.

Apart from that, it helps protect vehicles by blocking attempts to connect hotwires. Smart keys also broadcast unique encrypted signals to block them from being used by other vehicles driven by drivers.

Convenience

Rather than having to insert keys into the ignition slot to lock and unlock your car simply by touching the handle on the door or trunk. Modern vehicles often have the option to remotely start your engine. This is particularly useful if you are bringing in groceries, or transporting passengers or equipment.

This technology is designed to help stop theft of vehicles. Instead of sending only one frequency signal as a standard key fob smart keys send out a series of encrypted signals to a car's antennas embedded in it when you come close to it. What does this mean? Stuff Works Electronics explains that this is a way to prevent other cars from receiving and responding the same signal.

Some manufacturers also include a computer-chip in the vehicle that recognizes the unique fingerprint of each key. This helps to ensure that only authorized users are using it. This is beneficial if you loan your car to family and friends.

Some smart keys also store user preferences, so that mirrors, seats and steering wheel adjustments, as also stereo presets may be automatically set when the key is within the range of the vehicle. Some smart keys can also be set up to prevent the vehicle from crossing the speed limit once you start the car with that key. This is a great method to protect new drivers and is a good idea if you have children in the back.

Security

Traditionally, car keys have been made from metal and used to unlock the ignition. With the advancement of smart keys, this is no longer required. smart key market keys come with a chip which sends an antenna signal to your car. The car recognizes this signal when the driver presses on the trunk release or door handle. This means it's not possible to lock your keys inside your Car remote replacement.

The signal that the smart key sends to your car is encrypted, which means only the owner has the right to use it. Most models also disable the engine if it hasn't been running for a few minutes. This feature is especially useful if you're in an unsafe location or need to get out of the vehicle for reasons other than at a gas pump.

In addition, if the smart key battery gets depleted during a journey, many systems come with a backup plan of opening and starting the vehicle. The backup system involves placing the key in a slot or holding it close to an space in the cockpit where the energy is transferred to an electric motor. Some manufacturers also have an key blade that is an emergency mechanical lock in the key that could be used to open the trunk and begin the car if required.

Battery Life

Many newer cars have keyless entry and push button starting systems that are controlled by a smart key fob that utilizes proximity technology to communicate with the car. These systems are powered by a small transmitter that is powered by a lithium coin-sized battery. As with all batteries it will eventually need replacement.

The majority of smart key fob batteries last several years however, this doesn't mean that they won't go out of power and stop working quickly. A dead key fob means that it isn't able to unlock or start your car, even if you place it close to the front door, and the key fob light is flashing.

It is not unusual for the transmitter of a smart car key reprogramming key drain the battery. The smart fortwo key fob key sends the signal each time you press the button. However, most of the time it does nothing. A single lock/unlock signal takes only a fraction of the fob's battery and, therefore, there's several years worth of signals worth of battery life for the average smart key battery.

The fob also tends to drain the battery If you keep it in close proximity to other devices that emit electromagnetic fields, such as phones and computers. These gadgets emit magnetic fields of their own, which can interfere and slow down the fob transmitter. RepairPal states that the fob may be inoperable if placed too close to the gadgets.

Maintenance

Unlike the traditional metal car key, a smart one utilizes technology to control the locks on your vehicle as well as perform other functions. It operates by sending a signal to the antennas located inside and outside your vehicle. These antennas detect the fob's signals and communicate with the car's computer. The car interprets the signal allowing you to start or close it without having to use the physical key.

New vehicles are loaded with the latest electronic technology and the fob has become an instrument for many of these functions. The most obvious ones are locking and unlocking, remote start, and chirping to help you find your vehicle in a parking lot. Some fobs even let you save specific settings for different drivers and open windows remotely and sunroofs.

The fob itself is a complex device that includes an integrated circuit board, and it is prone to being damaged by hard use or exposure to cold or hot. The transmitter may be damaged if knocked or dropped. The battery's contacts can be bent.

These issues can be difficult to pinpoint and fix. You can try using your phone to bypass the issue and see if it works, but it's a good idea to keep a backup key inside your pocket in a case. You can buy a generic replacement for most OEM smart keys, which can cost up 70 percent less and comes with a three-year, higher-quality guarantee than OEM.