The phrase "automatic warning" is correct and usable in written English.
It can be used in contexts where a system or device generates a warning without human intervention, often in technical or safety-related discussions.
Example: "The software includes an automatic warning feature that alerts users when system performance drops below acceptable levels."
Alternatives: "automated alert" or "self-activating warning".
The system processes the audio and video data acquired from multiple sensors spread in the environment to automatically detect dangerous events and generate automatic warning messages.
The train's automatic warning system was working, the inspectors found.
Truck drivers drove down the street backward so that they could test their automatic warning systems.
Neighbors complained of the noise, particularly at night, caused by the constant beeping of trucks equipped with automatic warning horns.
In response Waze introduced an automatic warning system for Rio users when they choose a route through high-crime areas.
Crossing the line does not produce an automatic warning, but the company reserves the right to wag its finger and subsequently shut out any egregious overuser.
They also receive automatic warnings on their phone if they are near an incident.
But, Dr. Schiff said, a barrage of automatic warnings has turned alerts from machines, laboratories and electronic records into the medical equivalent of the car alarm that is ignored because it never stops blaring.
In the United States, mobile operators agreed in October to begin a series of automatic warnings next year, which will probably be text messages, when customers approach the limits of voice, text, Internet and roaming packages.
— The commuter plane that crashed near Buffalo on Thursday night slammed to the ground flat on its belly, with almost no forward momentum and facing opposite its intended route, seconds after two automatic warnings to the pilots that the plane was not moving fast enough to stay aloft, the National Transportation Safety Board said on Saturday.
Automatic warnings for additivity violation (i.e. if probabilities or beans do not sum up to the required amount) in pdf questions are also useful.13 Bruine de Bruin et al.
