What Do Green Lights on Cars Mean?



Green lights on cars are primarily used by:

  • Volunteer or private ambulances.

  • Medical transport services.

These vehicles play a crucial role in transporting patients, especially those who require non-emergency medical care, such as scheduled appointments, dialysis, or elderly care. The green light signals to other drivers that the vehicle is on a medical mission and may need to get through traffic quickly.


Why Green?

The use of green lights for medical transport is a tradition that has been in place for many years. It distinguishes these vehicles from emergency vehicles that use red lights and sirens. Green lights are a quieter, less intrusive signal that still communicates urgency.


What to Do When You See a Green Light

If you see a car with a flashing green light:

  • Yield the right of way: Pull over or slow down to let the vehicle pass.

  • Be aware: It’s a sign that someone may need medical attention.

  • Drive safely: While it’s important to let them pass, always do so in a safe and controlled manner.


A Gentle Reminder

The next time you see a green light on a car, you can appreciate it as a quiet signal of care and urgency. It’s a reminder that someone is on their way to help, and a small act of consideration on our part can make a real difference.