Detection device for a steering wheel of a vehicle, said device being configured to detect contact or proximity of a person with or to the steering wheel, comprising sensors, of which there are only three, of which:



a first sensor (21) is intended to be arranged on a left-hand half of a first face of the steering wheel,
a second sensor (22) is intended to be arranged on a right-hand half of said first face of the steering wheel, and
a third sensor (23) is intended to be arranged on a second face opposed to said first face of the steering wheel, and said first face is a rear face of the steering wheel.