What is a way to warn drivers behind you that you will be slowing down?

Question

To alert drivers behind you that you plan to slow down, tap your brake pedal lightly a few times to make the brake lights flash.

Accepted Answer

Tap your brake pedal a few times to illuminate the brake lights.

Answer

Turn on the right turn signal followed by the left turn signal.

Answer

Swerve from side to side to get other drivers’ attention.

Answer

Turn all lights on and off several times.