If you have never seen a vehicle with flashing green lights, the story in this image may sound strange—but green emergency-style lights are actually used in several places.
One common use is for volunteer firefighters or volunteer emergency responders who are driving their personal vehicles to an emergency. In some jurisdictions, the green light identifies them so other motorists know they may be responding to an urgent call. SAAQ
In some areas, green lights can also identify volunteer medical responders or EMS personnel. The exact meaning depends on the local traffic laws. Ontario
🟢 Why Would They Use Green?
A volunteer firefighter may receive an emergency call while at home or somewhere away from the fire station.
Instead of driving an emergency vehicle immediately, they may need to drive their own car to the station, where they join the emergency crew.
The flashing green light helps other drivers recognize that the person is responding to an emergency and may need to get through traffic safely.
🚗 Should You Move Over?
If you see a flashing green light approaching from behind, the safest response is to slow down and give the vehicle room to pass when it is safe to do so.
However, the legal meaning is not the same everywhere. In some jurisdictions, the green light is a courtesy/identification signal rather than a full emergency-vehicle authorization. For example, Québec explicitly states that authorized firefighters using green lights must still obey speed limits and traffic signals. SAAQ
⚠️ One Important Detail
There is no universal meaning for a green vehicle light worldwide.
Depending on the country, state, province, or municipality, it can be associated with:
👨🚒 Volunteer firefighters
🚑 Volunteer medical responders
🚨 Emergency-management or incident-command vehicles
🚧 Certain specialized service vehicles
So the police officer in the viral story could have been referring to a locally authorized emergency-response vehicle, but the image doesn’t provide enough information to determine exactly what vehicle the driver encountered.
🟢 Bottom line
Yes, vehicles with flashing green lights are real. In many places, they are used to identify volunteer emergency responders—especially firefighters or medical responders.
If you encounter one, don’t panic or try to race it. Slow down and let it pass when safe. 🚗💨
