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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.
Some automobiles are fitted with a battery condition meter to monitor the starter battery. This meter is, essentially, a voltmeter but it may also be marked with coloured zones for easy visualization. Many newer cars no longer offer voltmeters or ammeters; instead, these vehicles typically have a light with the outline of an automotive battery ...
Found on the instrument panel of most automobiles, it usually bears the legend engine, [1] check engine, service engine soon, maintenance required, emiss maint, [2] or a pictogram of an engine—and when illuminated, it is typically an amber or red color. The light generally [3] has two stages: steady (indicating a minor repairable fault, but ...
Both the Eveready and Energizer marks are used under license by auto parts magnate Pep Boys for their in-house car batteries. [55] The Energizer logo used by Pep Boys is similar to the 1980s-era logo first used with the consumer dry cell batteries. Both Eveready and Energizer are marketed as different brands in some markets in Asia.
[1] [2] The U.S. National Highway Traffic Safety Administration issued its final ruling in February 2018, and requires the device to emit warning sounds when travelling at speeds less than 18.6 mph (30 km/h) with compliance by September 2020, but 50% of "quiet" vehicles must have the warning sounds by September 2019. [3]
In the United States, a single emergency vehicle blocking a right-of-way could have as many as eight warning lights flashing 75 times per minute with different colors and levels of intensity, as well as different flash patterns and synchronization. Alaska, Arizona, Colorado, Minnesota, and Nebraska also use blue lights on snowplows. [99] [100 ...
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. The signal is sometimes referred to in car manufacturers' manuals as an optical horn, since it draws the attention of other ...
Each battery is affected differently by charge cycles. [2] [3] In general, number of cycles for a rechargeable battery (the cycle life) indicates how many times it can undergo the process of complete charging and discharging until failure or starting to lose capacity. [4] [5] [6] [7]