About 100 feet.
When you are making a turn, when you are changing lanes, or when you are pulling away from the curb or are parallel parking. Activate turn signals 200' before making a turn.
100 ft
When turning you should signal during the last 100 feet before a stop sign. This is courteous to all drivers around you.
100ft
100 yards
100 feet
Lift the stick to the right of the steering wheel up to activate the right turn signal and down to activate the left turn signal
100 ft ahead
100 feet
100 feet
Before turning left, the driver should signal, check for oncoming traffic, yield to pedestrians, and make sure it is safe to proceed.
At least 500 feet.