Warning Signs
Truck Rollover Warning sign
The curve or ramp ahead bends sharply enough that tall, heavy vehicles risk tipping over.
- Shape
- Diamond
- Color
- Yellow with black
- Type
- Warning
- MUTCD code
- W1-13R
What to do
- Trucks and other high-profile vehicles must cut speed well before entering, not after they are already in the turn.
How to read it
Diamond. A diamond is a warning. It tells you about a hazard or a change in the road ahead.
Yellow with black. Yellow is a general warning about the road ahead.
Warning sign. Warning signs tell you about a hazard or a change ahead so you can slow down in time.
Signs follow the national standard (the MUTCD) in every state. Your state handbook is the final word for your test.
Related signs
Signs that look similar or come up together on the test.
Road signs quiz and flashcards
Drill every sign on your phone, along with the rest of your state’s test.
Not a government website. USA DMV (usadmv.app) is an independent study resource. It is not affiliated with, endorsed by or operated by any state DMV, the Texas Department of Public Safety or any other government agency. Practice questions are written to reflect official driver handbooks but are not the official test questions. Always confirm current requirements with your state’s licensing agency.