You should signal at least how many feet before you turn?

  1. 50
  2. 75
  3. 100 ✓

Answer: C. 100

You should signal at least 100 feet before you turn.

Why this is the answer

The handbook's signaling list says to signal at least 100 feet before a turn, and the left-turn directions repeat that you start signaling 100 feet before the turn. Signaling that early gives drivers behind you and anyone waiting at the intersection time to see what you plan to do. The handbook also says to signal even when you do not see other vehicles around you, so the distance applies all the time, not just in traffic.

Why the other answers are wrong

Remember it

Match the number to the turn rule: start your blinker 100 feet out, the same figure the handbook gives for left turns.

Official handbook: California Driver Handbook (DL 600), Section 5: An Introduction to Driving, p. 11

Explanation drafted with AI (deepseek-flash) from the official handbook passage cited above, then checked automatically and by a second model on 2026-10-23. Always confirm with the official handbook.