DMV Permit · General

What is the proper procedure when you want to change lanes?

Correct answer

Signal, check mirrors, check your blind spot by looking over your shoulder, and change lanes only when it is safe

  1. A Change quickly without signaling
  2. B Signal, check mirrors, check your blind spot by looking over your shoulder, and change lanes only when it is safe
  3. C Only check the rearview mirror
  4. D Honk and change lanes immediately

Why this is the answer

To change lanes safely: (1) SIGNAL your intention in advance; (2) CHECK your MIRRORS (rearview and side); (3) CHECK your BLIND SPOT by looking over your shoulder (mirrors don't show everything — vehicles can hide in blind spots); (4) change lanes smoothly only when it's SAFE (adequate gap). DMV/permit test. The BLIND-SPOT check (head check) is critical — many collisions happen because a driver relied only on mirrors. Maintain speed and signal throughout. Knowing the proper lane-change procedure (signal, mirrors, blind-spot check, then change when safe) is a commonly tested safety procedure.
Source: DMV Permit — Lane Change Procedure

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