Corolla's one touch three-blink turn indicators make changing lanes easier. To signal a lane change, lightly lift up or press down on the turn signal stock. When you release it, the stock returns to center and the turn signals flash just three times. That's the default. You can have that change to 5 or 7 by your Toyota dealer. To signal a turn, lift the turn signal stock up or press it down firmly. The signal will flash continuously until you complete your turn or return the stock to center.