What must you do when you reach a steady yellow traffic light? Yield to cross traffic if you can yield safely. Slow down by slamming on the brakes. Stop before you enter if you can do so safely. Look left, then right then left again.

When you reach a steady yellow traffic light, the correct action is to stop before you enter the intersection if you can do so safely. The purpose of a yellow light is to warn drivers that the light is about to turn red, so it is important to prepare to stop unless you are too close to the intersection to stop safely.