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A group of tell-tales showing lights for "brake fluid", "stop lamp" and "check engine" Graphical tell-talesA tell-tale, sometimes called an idiot light [1] or warning light, is an indicator of malfunction or operation of a system, indicated by a binary (on/off) illuminated light, symbol or text legend.
A check engine light or malfunction indicator lamp (MIL), is a tell-tale that a computerized engine-management system uses to indicate a malfunction or problem with the vehicle ranging from minor (such as a loose gas cap) to serious (worn spark plugs, engine problems or a faulty oil valve, etc.).
It is illegal for any vehicle to show a flashing coloured light (with the exception of the normal direction indicators or a green anti-lock brake warning indicator), unless it is an emergency or other authorised vehicle. [77] However, recently bicycles can exhibit a flashing rear red lamp and flashing white front lamp. [78]
[73] [74] The problems are characterized by a blank, staticky, or grayscale video output with a proper functioning audio output and no flashing red lights on the console. The complete video failure is sometimes preceded by other graphical glitches such as an irregular saturation of green and/or red colors.
Cars in the US only have red tail lights, and no blue lights; a vehicle displaying a red (forward-facing) light (flashing or not) coming towards a driver, or from behind the driver (in rearview mirror) indicates that an official emergency vehicle is coming, requiring the driver to yield, pull off to the side of the road, or otherwise get out of ...
This light begins blinking with enough time for the driver to see it and slow down before the intersection light turns yellow, then red. The flashing yellow light can go out immediately when the light turns green, or it may continue for several seconds after the intersection light has turned green, as it usually takes a line of cars some time ...
In the US, a single-aspect flashing amber signal can be used to raise attention to a warning sign and a single-aspect flashing red signal can be used to raise attention to a "stop", "do not enter", or "wrong way" sign. [32] Flashing red or amber lights, known as intersection control beacons, are used to reinforce stop signs at intersections. [33]
Typical dashboard icon indicating that high beams are illuminated. Headlight flashing is the act of either briefly switching on the headlights of a car, or of momentarily switching between a headlight's high beams and low beams, in an effort to communicate with another driver or drivers.