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How does a key fob work?

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Wiki User
2007-01-12 14:22:11

On a fob, there are multiple buttons, one of those buttons

unlocks the car. Another one of them locks the car. One of the

buttons pops the trunk and the last button turns on or off the

alarm. On more advanced models the radio frequency fob can also be

used to open the trunk or even remotely start the vehicle. My

current one allows me to lock, unlock, remote start, open back

hatch, open back window and alarm.

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