How to Remove the Car Key for a Buick?

[CarsonLee]

To remove the key from a Buick, ensure the gear is in the P (Park) position, then take out the key. The car key works by emitting radio waves from the owner, which are received by the car's antenna. The electronic control unit (ECU) then identifies the signal code, and the system's actuator performs the locking or unlocking action. The functions of the car key include: 1. Closing windows after turning off the engine by holding down the lock button on the remote key; 2. Locating the car in a parking lot by pressing the red horn-shaped button on the key, which makes the car honk continuously, allowing you to find it by the sound; 3. Automatically opening the trunk by holding down the trunk release button on the key; 4. Opening only the driver's door by pressing the unlock button once, which does not trigger the auto-lock function, providing security for items in the passenger seat and back seat.