page_title: Tell-tale (automotive)
hierarchical_section_title: Tell-tale (automotive)
caption_attribution_description: English: Idiot lights in a '88 Subaru GL. Fairly typical, although I don't think 'Stop Lamp' is a very common one. It is supposed to light when there is a failure of one or more of the stop lamps, obviously.
context_page_description: A tell-tale, sometimes called an idiot light or "warning light", is an indicator of malfunction of a system, indicated by a binary illuminated light, symbol or text legend.
  The "idiot light" terminology arises from popular frustration with automakers' use of lights for crucial functions which could previously be monitored by gauges, so a troublesome condition could be detected and corrected early. Such early detection of problems with, for example, engine temperature or oil pressure or charging system operation is not possible via an idiot light, which lights only when a fault has already occurred – thus providing no advance warnings or details of the malfunction's extent. The Hudson automobile company was the first to use lights instead of gauges for oil pressure and the voltmeter, starting in the mid-1930s.
context_section_description: A tell-tale, sometimes called an idiot light or "warning light", is an indicator of malfunction of a system, indicated by a binary (on/off) illuminated light, symbol or text legend.
  The "idiot light" terminology arises from popular frustration with automakers' use of lights for crucial functions which could previously be monitored by gauges, so a troublesome condition could be detected and corrected early. Such early detection of problems with, for example, engine temperature or oil pressure or charging system operation is not possible via an idiot light, which lights only when a fault has already occurred – thus providing no advance warnings or details of the malfunction's extent. The Hudson automobile company was the first to use lights instead of gauges for oil pressure and the voltmeter, starting in the mid-1930s.
caption: A group of tell-tales
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