You Should Use Your Horn When:
Question: When should you use your horn?
Answer: Use your horn only when:
It is necessary to avoid accidents.
On narrow mountain roads, drive as far to the right as possible, and sound your horn when you cannot see at least 200 feet ahead.
Question: When should you not use your horn?
Answer:
Question: When should you use your signals?
Answer: You should signal before you turn, slow down, stop, or change lanes.
Question: If bright sunlight makes the vehicle signals hard to see, what should you do?
Answer: Use hand signals
Question: When should you signal for a right or left turn?
Answer: 3 or 4 seconds before reaching the turning point or the last 100 ft