To turn on the wipers, there is a lever on the left side of the steering wheel.
How do I turn it on?
Push the lever down once (slow intervals)
Push the lever down twice (fast intervals)
Push the lever down thrice (very fast intervals)
How do I turn it off?
Push it back all the way up to its original position
How do I activate the windscreen washer?
Hold on to the lever and pull it towards you
Extra feature for the Toyota Sienta
The Toyota Sienta also has another wiper at the back for the rear windshield. To activate it:
Hold the knob at the tip of the lever
Turn it up (clockwise) once (slow intervals)
Turn it up (clockwise) twice (fast intervals)
To turn it off, turn the knob back down (anti-clockwise) to its original position