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Comprehensive List Of Smart Car Key Programming Dos And Don'ts
smart car key not working found in vehicles enables drivers to unlock and start their car by simply pressing the door handle, or by putting the key into the pocket. It also allows for a variety of other adjustments including the position of the seat, internal temperature settings and mirror positioning.

However, this could also lead to security concerns.

Security

Smart keys are advanced electronic keys that communicate with a vehicle via one of the car's embedded antennas to unlock doors and to start the engine. Smart keys, unlike conventional keys that emit the same frequency each time they're pulled, transmit encrypted signals that are only compatible with the particular car to which they belong. This makes it harder for thieves with a technological edge to fake or intercept the signal and use the key to steal your car.

Mercedes' Keyless Go system for instance, has an internal transponder that identifies the driver's key. When the Smart Key comes within 1.5 meters of a vehicle it automatically unlocks the door and tailgate, and the engine starts when a button on the key is hit.

Some smart keys, like the ones from BMW additionally have user-specific settings that allow users to alter the seat, mirrors and the steering wheel's position and even audio preferences with the touch of a single button. They also have the backup lock, which stops the vehicle starting without the key.

This technology stops drivers from not locking their cars properly, especially when searching in the bag or purse to find keys in an open parking lot with people who are not familiar with the area or where crime is high. A lot of systems will also notify drivers when their keys are low on battery, although this feature differs by manufacturer.

Convenience

The smart key is ideal for those who are in a rush to get somewhere. By pressing the button on your trunk release or door handle you can open, lock and begin your vehicle. Popular Mechanics explains that the key fob can be used to track charging or location as well as other vehicle information.

One of the biggest advantages is that you can't accidentally get locked out. The key fob communicates to an antenna inside the vehicle to determine if it's within the range. If not, the engine will not start. This can deter thieves who might steal your vehicle in order to sell the parts.

The smart key also makes use of rolling codes to prevent hacking attempts as well as cloning, according BMW. The vehicle's computer is able to recognize and verify the code before starting the motor. Most systems have a physical backup system in the form of an unnoticed key blade.

How Stuff Works Electronics notes that modern smart keys also detect when the key is when it is in use and adjust the vehicle settings in line with the use of the key. For example, if you switch on the car while holding the key fob in your palm, the windows and sunroof will open to ventilate the cabin. You can also set the speed limit which will only be in effect when the car is started using the specified key, a feature that could be helpful when lending your car to an inexperienced driver.

Battery Life

If you're looking for a way to get more mileage out of your vehicle's smart key, or just want to make sure it won't die during a trip to the grocery store, you can activate an auto manufacturer-specific feature called Power Saving Mode. To activate this feature, hold the lock button down and then press the unlock button.

This will stop your smart key fob from sending or receiving radio signals and will increase the battery's life by a significant amount. You can always activate the function by pressing the unlock and lock button again.

Some smart keys include anti-theft features to prevent them from being stolen by thieves. For instance, Mercedes-Benz smart keys use rolling codes to block unauthorised access to vehicles. When a smart key is inserted into ignition, a computer within the car checks the code in milliseconds prior starting the engine. BMW makes use of a Display Key that has a tiny LCD color screen. This lets drivers lock their cars, open them, and even start the engine without having to take the smart key from their pockets.

Contact us at Pop-A Lock if you require to replace the battery on the smart key fob you have or in the event that you are thinking of purchasing a car that has a smart-key. We can replace the battery in any smart key and our mobile locksmiths will assist you in setting the system so that your vehicle recognizes it.


Special Cases

Smart keys aren't 100% secure against theft, but they do assist in preventing thieves. Smart keys employ rolling security codes that prevent theft, and when placed in the ignition, the vehicle's computer validates the code within milliseconds. Mercedes-Benz created this technology, which is currently used by luxury car brands.

Another helpful feature is that many smart key systems will continue to function even if a user forgot the key in the trunk or left it in the restaurant, or lost it on hiking. Some systems will alert the driver when the battery is low. Certain brands have key covers specifically designed for smart keys to keep the fob protected from harm.