From Longman Dictionary of Contemporary Englishhazard lightsˈhazard ˌlights noun [plural] TTCspecial lights on a vehicle that flash to warn other drivers of danger
Examples from the Corpus
hazard lights• He put on his hazard lights, pulled over and pushed his way across the crowded pavement towards the rubbish basket.• Christopher Smythe, defending, said hazard lights on Mrs Bone's car may have been obscured as she changed the wheel. 