Sgt. Jesse Grabow
Question: During one of the recent winter storms, I encountered numerous vehicles driving on a 4-lane highway with their four-way hazard lights on. The vehicles were not driving significantly slower than the other traffic, as nearly everyone had slowed considerably due to the low visibility. Is it legal in Minnesota and is it ever suggested to drive with your four-way flashers on? Thank you for your work in keeping Minnesota roadways safe. I always look forward to your Ask a Trooper column.
Answer: This is a great question. A driver can use their hazard lights to warn other motorists of a vehicular traffic hazard that requires caution in approaching, overtaking or passing.
Situations with limited visibility such as a blizzard, thick fog and heavy rain could constitute a traffic hazard. Other hazardous scenarios could include:
- A vehicle having issues maintaining a minimum safe speed.
- A flat tire or mechanical breakdown on the shoulder of the road.
- following an impaired driver or driver conducting dangerous behaviors.
If a line of traffic is moving along at the same speed, I am not sure it would be in the best interest for anyone in that lane to be using hazard lights. It is important to know which vehicle is moving at a slower speed than the rest of the flow of traffic or for those needing to make lane changes and needing to signal. As mentioned earlier, it’s generally for the lone vehicle causing the hazard.
A portion of state statutes were used with permission from the Office of the Revisor of Statutes. If you have any questions concerning traffic related laws or issues in Minnesota, send your questions to Trp. Jesse Grabow – Minnesota State Patrol at 1000 Highway 10 West, Detroit Lakes, MN 56501-2205. (You can follow him on X @MSPPIO_NW or reach him at, jesse.grabow@state.mn.us).
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