Warning signs
Steep Hill sign
A sharp downgrade is ahead. Trucks and heavy vehicles should reduce speed and gear down.
- Diamond
- Yellow
- MUTCD W7-1
How to recognize it
Shape and background first
ShapeDiamonda diamond stood on its point
BackgroundYellowyellow, the warning color
FamilyWarning signsFederal designation W7-1 in the MUTCD.
Federal designation W7-1 in the MUTCD, the national standard every state signs to.
What the MUTCD specifies
Designation: W7-1
MUTCD Section 2C.14
Conventional road size: 30 x 30 in
Source: Federal Highway Administration, MUTCD 11th Edition (December 2023), Part 2, Table 2C-1, verified 2026-09-26.
On the test
What the test wants you to know
The mistake people make
The right technique is to shift to a lower gear before the descent rather than riding the brakes, because repeated braking on a long grade can overheat and fade them.
Same family
