F1 glossary · Flags
Yellow flag
A danger signal requiring drivers to slow and prohibiting overtaking in the affected zone.
In plain English
This term belongs to the Flags side of Formula 1. Listen for it when commentators explain what a driver, car or team is doing and why the lap time or race situation is changing.
2026 context
Terminology on this site follows the current 2026 regulations. Older broadcasts and articles may use language that has since been replaced or narrowed.