Downshift to a lower gear or range (automatic transmissions) to slow your vehicle.
Pump the brake pedal fast and hard to build up brake fluid pressure - you will know in three to four pumps if the brakes will work - but do not pump antilock brakes.
Use your parking or emergency brake to gently slow your vehicle, but release it before the vehicle starts to skid.
Steer and swerve to avoid a collision or steer into something soft like bushes.
Sound your horn and flash your lights to alert other drivers.
When you are stopped, turn off the ignition and turn on your emergency flashers.
If your brakes get wet and do not work (like when you go through a big puddle), dry them by lightly pressing the gas pedal and brake pedal at the same time so that the vehicle drives against the pressure of the brakes. Do this only until the brakes begin working.