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What is a Smart Key Car Key?

Smart keys are also referred to as proximity keys or key fobs. They work to unlock doors as well as start engines without having to insert a physical key. They communicate by radiofrequency signals.

This helps keep cars safe by preventing hotwiring. Smart keys also broadcast unique encrypted signals to stop them from being used by other vehicles owned by drivers.

Convenience

You can lock and unlock your vehicle without having to insert the key into the ignition slot. Simply tap the door handle or trunk. Many modern vehicles also offer an option that allows you to start your engine from a distance. This is especially useful for those who are bringing groceries into the vehicle or transporting passengers and equipment.

This technology is designed to to prevent theft of vehicles. Instead of sending one frequency signal like a traditional key fob smart keys send out a series of encrypted signals to the car's embedded antennas when you walk towards it. How Stuff Works Electronics explains that this stops other vehicles from receiving and responding to the same signal.

In addition, some manufacturers employ a computer chip inside the vehicle that can recognize the unique fingerprint of each key, which ensures that only authorized drivers use it. This is helpful when you loan your car to family and friends.

Some smart keys also store user preferences, allowing seat, mirrors and steering wheel adjustments, as also stereo presets may be set automatically when the key is within the range of the vehicle. Some smart keys can be set up to prevent the vehicle from crossing the speed limit when the key is used to start it. This is a great method to ensure the safety of new drivers and also recommended when you have children in the back.

Security

Traditionally keys for cars were made from metal and used to unlock the ignition. With smart key technology however, this is no longer a requirement. Smart keys have an exclusive chip that sends a signal to the car's antenna. The vehicle recognizes this signal when the driver presses on the trunk release or door handle. This means it's impossible to lock your keys inside your car.

The signal sent by the smart key to your vehicle is encrypted, ensuring that only you are able to use it. The majority of models also shut off the engine when the car hasn't been running for some time. This is especially helpful if you are in an unsafe area or you have to get out of your vehicle for any reason.

Additionally, if a smart key battery runs out during a ride, many systems come with a backup plan of opening and starting the vehicle. The backup system typically consists of putting the key in an opening or keeping it in a certain area of the cockpit that transfers energy to an electric motor. Certain manufacturers have a mechanical key blade that can be used in an emergency to open the trunk or start the car.

Battery Life

The majority of newer cars come with keyless entry as well as push-button starting systems, controlled by a smart key fob that utilizes proximity technology to communicate with the car. These systems rely on a small transmitter that is powered by a coin-sized lithium battery. It will eventually need to be replaced, just like any other battery.

Although smart key fobs are designed to last for a long time however, they can suddenly lose power. A dead key fob means you can't unlock or start the car, even if you place it near the front door and the key fob light is flashing.

It is not uncommon for the transmitter of a smart car key programming key to drain the battery. The smart key transmits signals each time you press a button. But the majority of time it does nothing. The battery of a smart key for smart car can be used to power several years of lock/unlock signals.

The fob is also prone to drain the battery when you keep it close to other devices that emit electromagnetic fields, for example phones and computers. These devices emit their own magnetic fields which can cause interference and slow down the fob transmitter. RepairPal states that the fob may cease to function if placed too close to the gadgets.

Maintenance

Smart keys differ from traditional keys in that they use technology to control the locks on your vehicle as well as perform other functions. It operates by sending a signal to antennas placed inside and outside your vehicle. They detect the fob's signals and communicate with the car's computer. The car interprets the signal and allows you to begin or open it without the physical key.

The fob is now the hub of many electronic features that are now available in new vehicles. The most obvious ones are locking and unlocking, remote start, and chirping sound to aid in finding your car in a parking lot. Certain fobs let you save various settings for various drivers, and remote-operated windows and the sunroof.

The fob is an intricate electronic device that includes an integrated circuit board that can be damaged if used too hard or exposed to extreme cold or heat. The transmitter could be damaged if it is hit or dropped. The battery contacts can be bent.

These problems can be hard to identify and fix. You can utilize your smartphone to get around this issue to determine if it's working. However you should always keep an extra key in your wallet in a case. You can buy a generic smart keys for cars key replacement that is up to 70% less than OEM keys and comes with a 3 year warranty.