Traffic Signal Ahead Sign
A traffic signal is ahead, often where it is hard to see in time
Diamond
Shape
Warning
Category
What to do
Slow down and be prepared to stop for a red light.
Tips
Common before curves or hills that hide the signal.
Common mistake
Approaching too fast to stop for a red light
About warning signs
Warning signs are diamond-shaped and yellow with black symbols. They alert you to hazards ahead — curves, intersections, crossings — so you have time to slow down. On the DMV written test, expect several questions asking what a specific warning sign means and what action it calls for.
Frequently asked questions
What does the Traffic Signal Ahead Sign mean?
A traffic signal is ahead, often where it is hard to see in time
What should you do at a Traffic Signal Ahead Sign?
Slow down and be prepared to stop for a red light.
More warning signs
Left Turn AheadRight Turn AheadCurve With 35 MPH AdvisoryCurve 25 MPHRight CurveHairpin CurveReverse CurveWinding Road
All 115 signs
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