When should you adjust your mirrors?

  1. Before turning on your engine. ✓
  2. While backing out of your driveway.
  3. When approaching speeds of 55 mph.
  4. When completing a turn.

Answer: A. Before turning on your engine.

You should adjust your mirrors before you turn on your engine.

Why this is the answer

The Florida handbook lists mirror adjustment as part of what you do before starting the engine. It says to adjust all rear-view mirrors so you can use them without leaning forward or backward. That puts the adjustment in the pre-start checks, before driving begins, not during a maneuver.

Why the other answers are wrong

Remember it

Set your mirrors during the same pre-start routine as your seat and safety belt.

Official handbook: Florida Driver License Handbook (FLHSMV), 7. Driving Safety – Backing Up, p. 59

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.