sudden
The car made a sudden swerve to the left.

make

sharply, violently
dangerously, wildly
suddenly
away

across
The car veered out of control and swerved across the road.

around, into
A van suddenly swerved into her path.

off
The vehicle swerved off the road.

swerve to avoid sb/sth
The car swerved sharply to avoid the bus.

Swerve is used with these nouns as the subject:
car

Swerve is used with these nouns as the object:
car