How can I reset the maintenance requiered lamp of a Toyota yaris 2007?

Answer 1

yes, the owners manual tells you how to do it.

Answer 2

key off, hold in the mileage indicator or trip meter button with the total mileage showing, then turn the ignition key to the on position. You will see the mainatnence lite blink several times and then stop. Release the button, turn off the key. Start the car and the lite should be out and rest back for another preset mile to lite itself back on again later.
good luck..........

PS..yes, it is in the operators manual as well.