A vehicle must not change course for any reason whatsoever.

Explanation

False. What the provision bans is changing course "without good reason". Necessary changes — overtaking, or steering around an obstacle — are not banned.

Guides that explain this

• Overtaking and Lane Rules in Japan: Where It Is Banned, and How
• Stopping Distance in Japan: Reaction Distance + Braking Distance

Related terms

• Overtaking (oikoshi)

Related questions

• When you catch up with a vehicle that is slowing…
• A vehicle already travelling inside a roundabout…
• When a pedestrian is about to cross at a…
• You must not stop or park within 10 metres of…
• The places where both parking and stopping are…
• You must not park within 5 metres of a fire…