How Far Can the Car Key Be from the Vehicle Before It Won't Open the Door?

[VivienneRose]

The maximum reception distance for a car key remote is approximately 50 meters. This distance is achievable only under conditions without any electronic interference or physical obstructions. Typically, the signal remains strong and is most easily received within a range of about 10 meters. Additionally, the reception distance can vary depending on the quality of the remote key and other factors. A remote key allows users to lock and unlock the car doors from a distance without inserting the key into the lock. Its advantages include the ability to operate the lock conveniently from afar, regardless of whether it's day or night, and without needing to locate the keyhole. The remote key emits a weak radio signal, which is 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. This system primarily consists of two components: a transmitter and a receiver.