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  2. How to Change the Battery in Your Car Key Fob - AOL

    www.aol.com/change-battery-car-key-fob-194637492...

    Here’s a step by step guide for how to change the battery in your key fob. Look for the Battery Type Embossed in the Plastic On some key fobs, the battery type will be printed on the outside.

  3. Smart key - Wikipedia

    en.wikipedia.org/wiki/Smart_key

    An additional safety feature is integrated into the vehicle, making it impossible to lock a SmartKey with Keyless Go inside a vehicle. Hardware blocks on the Keyless Entry/Go ECU. The system works by having a series of LF (low frequency 125 kHz) transmitting antennas both inside and outside the vehicle. The external antennas are located in the ...

  4. Smart lock - Wikipedia

    en.wikipedia.org/wiki/Smart_lock

    A smart lock is an electromechanical lock that is designed to perform locking and unlocking operations on a door when it receives a prompt via an electronic keypad, biometric sensor, access card, Bluetooth, or Wi-FI from a registered mobile device. These locks are called smart locks because they use advanced technology and Internet ...

  5. Remote keyless system - Wikipedia

    en.wikipedia.org/wiki/Remote_keyless_system

    A remote keyless system can include both remote keyless entry (RKE), which unlocks the doors, and remote keyless ignition (RKI), which starts the engine. Numerous manufacturers have offered entry systems that use door- or pillar-mounted keypad entry systems ; touchless passive entry / smart key systems that allow a key to remain pocketed; and ...

  6. Power door locks - Wikipedia

    en.wikipedia.org/wiki/Power_door_locks

    Pressing a button on the key unlocks all of the car doors. Another button locks the car. In 1980, Ford Motor Company introduced an external keypad-type keyless entry system, wherein the driver entered a numeric combination —either pre-programmed at the factory or one programmed by the owner— to unlock the car without the key.

  7. Immobiliser - Wikipedia

    en.wikipedia.org/wiki/Immobiliser

    The electric immobiliser/alarm system was invented by St. George Evans and Edward Birkenbuel and patented in 1919. [2] They developed a 3x3 grid of double-contact switches on a panel mounted inside the car so when the ignition switch was activated, current from the battery (or magneto) went to the spark plugs allowing the engine to start, or immobilizing the vehicle and sounding the horn. [3]