A three-point turn is a driving maneuver used to turn a vehicle around in a narrow space. It involves three main steps: first, the driver turns the steering wheel to the left and moves forward, positioning the car close to the curb. Next, the driver shifts the gear into reverse, turns the wheel to the right, and backs up until the vehicle is angled toward the road. Finally, the driver shifts back into drive, straightens the wheel, and moves forward to complete the turn. This technique is useful in areas where a U-turn is not possible due to space constraints.