Smart key

A smart key is a vehicular passive entry system developed by Siemens in 1995 and introduced by Mercedes-Benz under the name "Keyless-Go" in 1998 on the W220 S-Class,^[1] after the design patent was filed by Daimler-Benz on May 17, 1997.^[2]

Numerous manufacturers subsequently developed similar passive systems that unlock a vehicle on approach — while the key remains pocketed by the user.

^ Clark, Mitchell (31 May 2022). "The push-button ignition was a luxurious way to start your car until it wasn't". The Verge. Retrieved 7 June 2022.
^ "DPMAregister | Designs – Registerauskunft zum Design". Archived from the original on 2019-07-27. Retrieved 2012-05-19.

[1] Clark, Mitchell (31 May 2022). "The push-button ignition was a luxurious way to start your car until it wasn't". The Verge. Retrieved 7 June 2022.

[2] "DPMAregister | Designs – Registerauskunft zum Design". Archived from the original on 2019-07-27. Retrieved 2012-05-19.

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