Definition of "keyless" []

• Lacking or not requiring a key (adjective)

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• "The two models come with new 18-inch alloy wheels used exclusively on this editions, heated mirrors, leather interior, leather steering wheel, heated leather seats and the possibility to enter in the car with your key in you pocket, called keyless entry."
• "For 2011, Charger struts with a variety of standard and optional technologies, such as keyless entry and push-button start, Garmin navigation system, rainy-day safety mode, adaptive cruise control, forward collision warning, blind-spot monitoring, cross-path detection, and rearview camera."
• "Features such as electronic throttle controls, computer-controlled braking, push-button "keyless" ignition systems, new transmission designs and gas-electric hybrids present challenges to drivers who are accustomed to the well-known conventions that guided the designs of the analog cars of yesteryear."