Man kann es sagen.

• He called police and turned hazards on vehicle after driver fled but was struck

Taxi driver killed after stopping to help at Jaguar crash | Daily Mail Online

Purchased these for me 09 Focus but after fitting them found they worked well when I turned hazards on but flashed far too quickly as direction indicators

MCK Auto - P21W 15SMD Amber Orange LED Canbus Bulbs Indicator Signal Front Rear BA15s 1156 - EB6R8 - Transform Your Ride : Amazon.co.uk: Automotive

Ich würde die ausführlichere Formulierung vorziehen.

FWIW, diese beiden Wöbü kennen die "hazards" in dieser Bedeutung :

https://www.collinsdictionary.com/dictionary/...

 hazards in British English

(ˈhæzədz IPA Pronunciation Guide )

plural noun

another name for hazard lights ...

https://www.merriam-webster.com/dictionary/hazards

 hazard

1 of 2

noun

 ... 3 hazards plural : 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) : hazard lights

If you do break down or crash, immediately turn on your hazards.—

Shape

Drivers should also turn off their hazards when signaling to exit the highway.—

John Cichowski ...

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