hazard lights

plural noun

: special lights on a vehicle that flash on and off and are used to warn other drivers (as when the vehicle is not working properly)
Turn on your hazard lights. Wait inside the car for your tow …Adam Kleiner

called also hazards

Examples of hazard lights in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Physical controls remain especially useful for functions drivers use frequently, such as adjusting the audio system volume, changing climate settings and activating hazard lights. Chris Teague, AJC.com, 13 Mar. 2026 In situations of near-zero visibility due to dense fog, activate your hazard lights and seek a secure location, such as a nearby business's parking lot, to pull over and come to a stop. Nc Weather Bot, Charlotte Observer, 10 Mar. 2026 As patrons gathered on the curb on a humid summerlike night, the driver of a large black Cadillac SUV stopped on Rio Grande Street, turned on the vehicle’s hazard lights and opened fire toward the bar and passersby. Emiliano Tahui Gómez, Austin American Statesman, 8 Mar. 2026 In extremely dense fog where visibility is near zero, the best course of action is to first turn on your hazard lights, then simply pull into a safe location such as a parking lot of a local business, and stop. Kansas City Star Weather Bot, Kansas City Star, 5 Mar. 2026 See All Example Sentences for hazard lights

Word History

First Known Use

1966, in the meaning defined above

Time Traveler
The first known use of hazard lights was in 1966

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Cite this Entry

“Hazard lights.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hazard%20lights. Accessed 15 Mar. 2026.

Last Updated: - Updated example sentences
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