This article is from the Formula One Motor Racing FAQ, by firstname.lastname@example.org (Mitchell McCann) with numerous contributions by others.
Once this is deployed, the 'SC' board is shown and drivers must
slow down and circulate in their current order. The car waves
past each driver in turn, until the race leader is behind him.
Then all circulate until the race is deemed safe to continue,
with the safety car displaying flashing amber lights. Switching
off these lights indicates that the safety car will pull off
next time it reaches the pit entrance; once it does, the race
It should be noted that, unlike Indy, safety cars are rarely
used in F1. In fact, in the semi-permanent "What's the
difference between F1 and Indy" thread, the excessive use of the
safety car to close up the field is the major criticism of Indy
racing by F1 fans.