ThinkabaraHill / Steep Grade sign
Warning signs · MUTCD W7-1
What it means
A steep downhill is ahead.
How to recognize it
Yellow diamond with a truck on a slope.
What drivers do
Slow down and use a lower gear so your brakes do not overheat. Trucks will be going slowly.
Check yourself
A truck on a slope warns about…
Learning summary, not legal advice. Traffic laws vary by state — check your state driver's handbook. Drawing: our own illustration of the standard MUTCD design.
Frequently asked questions
What does the Hill / Steep Grade sign mean?
A steep downhill is ahead.
What should a driver do at a Hill / Steep Grade sign?
Slow down and use a lower gear so your brakes do not overheat. Trucks will be going slowly.
What does the Hill / Steep Grade sign look like?
Yellow diamond with a truck on a slope. It is a warning sign (yellow). MUTCD code W7-1.