Sample question · no JavaScript needed
How far before a turn or lane change should an Iowa driver normally signal?
- At least 100 feet
- Only after steering begins
- Ten feet
Answer: A — At least 100 feet. Iowa's drive-test guidance uses this distance to provide meaningful advance warning.
Iowa · DOT Driving-Test Guidance · Signal 100 Feet Before Turning · reviewed 2026-08-08 (opens in new tab)