SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/drive-signal-before-turn

About how early should you signal a turn?

In most states, signal at least 100 feet before the turn.

  1. 10 feet before
  2. About 100 feet before ✔
  3. Only after turning begins

Why: An early signal gives other road users time to understand your plan. Keep signaling until you begin the turn.

Huh, didn't know that: Many states require signaling a turn at least 100 feet ahead.

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Turn signals are a car's way of saying, Here is my next plot twist.
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References

Answer: About 100 feet before. An early signal gives other road users time to understand your plan. Keep signaling until you begin the turn.

  1. California Driver's Handbook, Turns www.dmv.ca.gov/portal/handbook/california-driver-handbook/navigating-the-roads
    Start signaling about 100 feet before the turn.
    Checked 2026-10-09.
  2. Pennsylvania Driver's Manual, Managing Speed www.pa.gov/agencies/dmv/driver-services/pennsylvania-drivers-manual/online-drivers-manual/everyday-driving-skills/managing-speed
    If you are driving 35 mph or more, you must signal at least 300 feet before turning.
    Checked 2026-10-09.

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