Ch. 6 · Hazardous Areas

Interior lights, including those in taxis, must not be turned on while driving.

[True / False · Medium]

Answer: ✕ False

Explanation

The Rules of the Road say interior lights (except in buses) should not be turned on while driving. This is phrased as advice ("let's not…"), not as an obligation ("must not"). The mandatory wording "must not be turned on" is therefore incorrect.

Driving school curriculumStage 2 – Topic 7: Driving in adverse conditions

Hikari
Hikari
I thought interior lights were totally banned while driving?
Misaki
Misaki
That's false. The Rules word it as advice — "let's not turn them on" — not as an obligation, so the wording 'must not' makes it wrong.
Hikari
Hikari
So it's more of a guideline than a hard rule?
Misaki
Misaki
Right. It's best practice to keep them off for visibility, but the Rules phrase it as advice, not a must.

Source: Ch. 6 Hazardous Areas · Section (第３節 夜間) · 2 灯火(5) 室内灯は、バスのほかは、走行中につけないようにしましよう。

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Source content excerpted from the NPA “Rules of the Road” instructional manual, in the public domain under Japanese Copyright Act Article 13(2). Explanations are AI-assisted and copyrighted by the MenkyoQuest editorial team.