What does a flashing yellow light mean? Question What does a flashing yellow light mean? Answers Ride with caution. Stop. Accelerate. Yield to other vehicles. Explanation A flashing yellow traffic signal means that operators should proceed with caution. When approaching an intersection controlled by a flashing yellow signal, slow down and look for hazards. This questions appears in the following tests: New York Motorcycle Practice Test 12 New York Motorcycle Practice Test 13